JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC0 5A1 CROP: … · 150 waterhemp control in corn josh...
27
148 DANDELION CONTROL IN NO-TILL CORN WITH MESOTRIONE APPLIED SURFACE PRELANT JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05A1 CROP: ZEAMX, CORN, FIELD (PIONEER 35Y55). Planted: May-07-05, 79040 S/HA, 5 CM Deep, 76 CM Row Width. Planting Method: SEEDED. Emerged On: May-18-05. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 8 M. Expt. Location: Dave VanEerd. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A Date : May-06-05 Crop 1 ZEAMX N/A Time of Day: 7:00 AM Height : Method : SPRAY Timing : PREPOS Weed 1 TAROF 2-20+ LF Placement : BROFOL Stg.Scale: 1-30 CM Air Temp. : 7 C Density : 127 /M2 % Humidity : 85 Weed 2 CHEAL Wind Speed : 3.0 KPH Stg.Scale: Dew Present: Y Density : Soil Moist.: NORMAL Weed 3 SOLCA Cloud Cover: 75% Stg.Scale: Equipment : C02 Backp Density : Pressure : 207 kPa Nozzle Type: Low Drift Nozzle Size: 12002 Noz.Spacing: 50 CM Boom Length: 2 M Boom Height: 50 CM Carrier : WATER Appl.Volume: 200 L/ha Propellant : CO2 Weed Code TAROF TAROF CHEAL TAROF Crop Code ZEAMX ZEAMX HEAVY Rating Data Type INJURY INJURY CONTROL CONTROL CONTROL CONTROL Rating Unit % % % % % % Rating Date May -27-05 Jun-24-05 May -27-05 Jun-24-05 Jun-24-05 Jul-15-05 Crop Stage SPK-1 LF 8-9 LF Crop Stage Scale 0.5- 4 C 89-97 CM Weed Stage 2-20+ LF 3-20+ LF COT-20LF 3-20+ LF Weed Density, Unit 87 /M2 103 /M2 20 /M2 85 /M2 Trt-Eval Interval 21 DA-A 49 DA-A 21 DA-A 49 DA-A 49 DA-A 70 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 1 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 0 e 0 e 0 c 0 e 2 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 69 ab 25 d 59 b 33 cd s-metolachlor 915 EC 1600 G A/HA PP A 3 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 10 d 5 e 65 b 18 de s-metolachlor/atrazine 720 SC 2520 G A/HA PP A 4 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 75 a 78 a 100 a 60 ab s-metolachlor/atrazine 720 SC 2520 G A/HA PP A mesotrione 480 SC 140 G A/HA PP A 5 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 59 c 68 bc 100 a 49 abc s-metolachlor/atrazine 720 SC 2520 G A/HA PP A dicamba 480 SL 600 G A/HA PP A 6 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 58 c 64 c 100 a 48 bc s-metolachlor/mesotrione/atraz 472 SC 2065 G A/HA PP A 7 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 64 bc 72 abc 100 a 61 ab isoxaflutole 480 SC 105 G A/HA PP A atrazine 480 SC 1063 G A/HA PP A 8 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 63 bc 75 ab 100 a 69 a dimethenamid 900 EC 1250 G A/HA PP A dicamba/atrazine 401 F 1800 G A/HA PP A LSD (P=.05) 0.0 0.0 7.7 8.4 13.3 21.0 Standard Deviation 0.0 0.0 5.2 5.7 9.1 14.3 CV 0.0 0.0 10.54 11.92 11.62 33.96 Means followed by same letter do not significantly differ (P=.05, LSD)
Transcript of JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC0 5A1 CROP: … · 150 waterhemp control in corn josh...
148
DANDELION CONTROL IN NO-TILL CORN WITH MESOTRIONE APPLIED SURFACE PRELANT JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05A1 CROP: ZEAMX, CORN, FIELD (PIONEER 35Y55). Planted: May-07-05, 79040 S/HA, 5 CM Deep, 76 CM Row Width. Planting Method: SEEDED. Emerged On: May-18-05. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 8 M. Expt. Location: Dave VanEerd. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A Date : May-06-05 Crop 1 ZEAMX N/A Time of Day: 7:00 AM Height : Method : SPRAY Timing : PREPOS Weed 1 TAROF 2-20+ LF Placement : BROFOL Stg.Scale: 1-30 CM Air Temp. : 7 C Density : 127 /M2 % Humidity : 85 Weed 2 CHEAL Wind Speed : 3.0 KPH Stg.Scale: Dew Present: Y Density : Soil Moist.: NORMAL Weed 3 SOLCA Cloud Cover: 75% Stg.Scale: Equipment : C02 Backp Density : Pressure : 207 kPa Nozzle Type: Low Drift Nozzle Size: 12002 Noz.Spacing: 50 CM Boom Length: 2 M Boom Height: 50 CM Carrier : WATER Appl.Volume: 200 L/ha Propellant : CO2 Weed Code TAROF TAROF CHEAL TAROF Crop Code ZEAMX ZEAMX HEAVY Rating Data Type INJURY INJURY CONTROL CONTROL CONTROL CONTROL Rating Unit % % % % % % Rating Date May -27-05 Jun-24-05 May -27-05 Jun-24-05 Jun-24-05 Jul-15-05 Crop Stage SPK-1 LF 8-9 LF Crop Stage Scale 0.5- 4 C 89-97 CM Weed Stage 2-20+ LF 3-20+ LF COT-20LF 3-20+ LF Weed Density, Unit 87 /M2 103 /M2 20 /M2 85 /M2 Trt-Eval Interval 21 DA-A 49 DA-A 21 DA-A 49 DA-A 49 DA-A 70 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 1 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 0 e 0 e 0 c 0 e 2 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 69 ab 25 d 59 b 33 cd s-metolachlor 915 EC 1600 G A/HA PP A 3 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 10 d 5 e 65 b 18 de s-metolachlor/atrazine 720 SC 2520 G A/HA PP A 4 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 75 a 78 a 100 a 60 ab s-metolachlor/atrazine 720 SC 2520 G A/HA PP A mesotrione 480 SC 140 G A/HA PP A 5 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 59 c 68 bc 100 a 49 abc s-metolachlor/atrazine 720 SC 2520 G A/HA PP A dicamba 480 SL 600 G A/HA PP A 6 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 58 c 64 c 100 a 48 bc s-metolachlor/mesotrione/atraz 472 SC 2065 G A/HA PP A 7 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 64 bc 72 abc 100 a 61 ab isoxaflutole 480 SC 105 G A/HA PP A atrazine 480 SC 1063 G A/HA PP A 8 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 a 0 a 63 bc 75 ab 100 a 69 a dimethenamid 900 EC 1250 G A/HA PP A dicamba/atrazine 401 F 1800 G A/HA PP A LSD (P=.05) 0.0 0.0 7.7 8.4 13.3 21.0 Standard Deviation 0.0 0.0 5.2 5.7 9.1 14.3 CV 0.0 0.0 10.54 11.92 11.62 33.96 Means followed by same letter do not significantly differ (P=.05, LSD)
149
DANDELION CONTROL IN NO-TILL CORN WITH MESOTRIONE APPLIED SURFACE PRELANT JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05A1 Weed Code TAROF CHEAL TAROF TAROF CHEAL Crop Code LIGHT HEAVY LIGHT Rating Data Type CONTROL CONTROL CONTROL CONTROL CONTROL Rating Unit % % % % % Rating Date Jul-15-05 Jul-15-05 Sep-03-05 Sep-03-05 Sep-03-05 Weed Stage 3-20+ LF 2-20+ LF 4-20+ LF 4-20+ LF 20+ LF Weed Density, Unit 18.5/M2 21.5/M2 35 /M2 9 /M2 4 /M2 Trt-Eval Interval 70 DA-A 70 DA-A 120 DA-A 120 DA-A 120 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 7 8 9 10 11 1 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 0 d 0 c 0 c 0 c 0 c 2 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 63 b 55 b 48 ab 77 a 33 b s-metolachlor 915 EC 1600 G A/HA PP A 3 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 32 c 68 b 24 bc 55 b 54 b s-metolachlor/atrazine 720 SC 2520 G A/HA PP A 4 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 82 ab 98 a 54 a 83 a 99 a s-metolachlor/atrazine 720 SC 2520 G A/HA PP A mesotrione 480 SC 140 G A/HA PP A 5 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 75 ab 100 a 58 a 81 a 98 a s-metolachlor/atrazine 720 SC 2520 G A/HA PP A dicamba 480 SL 600 G A/HA PP A 6 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 86 ab 100 a 58 a 80 a 100 a s-metolachlor/mesotrione/atraz 472 SC 2065 G A/HA PP A 7 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 89 a 100 a 61 a 89 a 100 a isoxaflutole 480 SC 105 G A/HA PP A atrazine 480 SC 1063 G A/HA PP A 8 glyphosate - Touchdown iQ 360 SL 1350 G A/HA PP A 82 ab 100 a 68 a 88 a 98 a dimethenamid 900 EC 1250 G A/HA PP A dicamba/atrazine 401 F 1800 G A/HA PP A LSD (P=.05) 24.0 13.5 24.2 14.6 22.4 Standard Deviation 15.8 9.2 16.4 9.9 15.3 CV 24.91 11.86 35.66 14.43 21.04 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions: There was no injury in corn with the preplant herbicides evaluated. Lamb's-quarters. The tankmixes of glyphosate plus s-metolachlor/atrazine plus mesotrione, s -metolachlor/atrazine plus dicamba, s-metolachlor/mesotrione/atrazine, isoxaflutole plus atrazine and dimethenamid plus atrazine all provided excellent full-season control of lamb's -quarters. The tankmixes of glyphosate plus s-metolachlor/atrazine or s-metolachlor provided poor control of lamb's -quarters. Dandelion. The tankmixes of glyphosate plus s-metolachlor, s-metolachlor/atrazine plus mesotrione, s-metolachlor/atrazine plus dicamba, s-metolachlor/mesotrione/atrazine, isoxaflutole plus atrazine and dimethenamid plus atrazine all provided equivalent control of dandelions. The tankmix of glyphosate plus s -metolachlor/atrazine resulted in poorer control of dandelions, possibly indicating antagonism of the glyphosate due to the atrazine. Interestingly, although atrazine was included in most of the other tankmixes, the antagonism must have been off -set by the other active ingredients in the combinations evaluated.
150
WATERHEMP CONTROL IN CORN JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05B1A CROP: ZEAMX, CORN, FIELD (PIONEER 37J99). Planted: May-10-05, 75600 S/H, 5 CM Deep, 76 CM Row Width. Planting Method: SEEDED. Emerged On: May-25-05. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 8 M. Expt. Location: Wayne Lennan. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A B C Application: A B C Date : May-17-05 Jun-07-05 Jun-07-05 Crop 1 ZEAMX N/A 4-5 LF 4-5 LF Time of Day: 3:00 PM 6:30 AM 6:30 AM Height : Method : SPRAY SPRAY SPRAY Timing : PREPRE POSPOS POSPOS Weed 1 AMASS N/A 4-5 LF N/A Placement : BROSOI BROFOL BROFOL Stg.Scale: 3-6 CM Air Temp. : 17.1 C 17.9 C 17.9 C Density : 153 /M2 % Humidity : 23 93 93 Weed 2 AMATU N/A COT-8 LF COT-5 LF Wind Speed : 5.9 KPH 3.1 KPH 3.1 KPH Stg.Scale: 0.5-7 CM 0.5-4 CM Dew Present: N Y Y Density : 1218 /M2 76 /M2 Soil Moist.: NORMAL NORMAL NORMAL Cloud Cover: 35% 5% 5% Equipment : C02 Backp C02 Backp C02 Backp Pressure : 207 kPa 207 kPa 207 kPa Nozzle Type: Low Drift Low Drift Low Drift Nozzle Size: 12002 12002 12002 Noz.Spacing: 50 CM 50 CM 50 CM Boom Length: 2 M 2 M 2 M Boom Height: 50 CM 50 CM 50 CM Carrier : WATER WATER WATER Appl.Volume: 200 L/ha 200 L/ha 200 L/ha Propellant : CO2 CO2 CO2 Weed Code AMATU AMATU AMATU AMATU AMATU Crop Code ZEAMX ZEAMX Rating Data Type INJURY INJURY CONTROL CONTROL DENSITY BIOMASS HEIGHTS Rating Unit % % % % #/M2 g/M2 CM Rating Date Jun-21-05 Jul-05-05 Jul-05-05 Aug-16-05 Aug-16-05 Aug-16-05 Aug-16-05 Crop Stage 7-9 LF 9-11 LF Crop Stage Scale 68-90 CM 114-166 Weed Stage COT-20+ 2-20+ LF Weed Density, Unit 791 /M2 6740/M2 Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 9 1 Weedy check 0 a 0 a 0 f 0 g 843 a 373 bc 139 a 2 Weed free check 0 a 0 a 100 a 100 a 0 b 0 e 0 e 3 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 77 d 71 de 112 b 265 bcd 159 a atrazine 480 SC 800 G A/HA PRE A 4 dicamba 480 SL 600 G A/HA POST B 0 a 0 a 82 bcd 78 b-e 68 b 37 de 45 d 5 dicamba/diflufenzopyr 70 WG 200 G A/HA POST B 0 a 0 a 80 d 69 e 104 b 67 de 96 b Agral 90 SO 0.250 % V/V POST B UAN 28 % SO 1.250 % V/V POST B 6 dicamba/atrazine 401 F 1800 G A/HA POST B 0 a 0 a 81 bcd 74 b-e 108 b 84 de 70 bcd 7 mesotrione 480 SC 100 G A/HA POST B 0 a 0 a 81 bcd 72 cde 154 b 145 cde 87 bc atrazine 480 SC 280 G A/HA POST B Agral 90 SO 0.200 % V/V POST B 8 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 95 ab 89 abc 50 b 31 de 54 cd atrazine 480 SC 800 G A/HA PRE A dicamba 480 SL 600 G A/HA POST C 9 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 88 a-d 87 a-d 59 b 29 de 53 cd atrazine 480 SC 800 G A/HA PRE A dicamba/diflufenzopyr 70 WG 200 G A/HA POST C Agral 90 SO 0.250 % V/V POST C UAN 28 % SO 1.250 % V/V POST C 10 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 95 abc 86 a-e 47 b 66 de 75 bcd atrazine 480 SC 800 G A/HA PRE A dicamba/atrazine 401 F 1800 G A/HA POST C 11 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 98 a 99 a 11 b 3 e 44 d atrazine 480 SC 800 G A/HA PRE A mesotrione 480 SC 100 G A/HA POST C atrazine 480 SC 280 G A/HA POST C Agral 90 SO 0.200 % V/V POST C 12 dimethenamid 900 EC 1250 G A/HA PRE A 0 a 0 a 89 a-d 91 ab 26 b 44 de 83 bc dicamba/atrazine 401 F 1800 G A/HA PRE A 13 s-metolachlor/atrazine 720 SC 2520 G A/HA PRE A 0 a 0 a 80 cd 78 b-e 20 b 184 cde 148 a mesotrione 480 SC 140 G A/HA PRE A 14 rimsulfuron 25 DF 15 G A/HA PRE A 0 a 0 a 45 e 40 f 182 b 450 b 147 a s-metolachlor 915 EC 684 G A/HA PRE A dicamba 480 SL 360 G A/HA PRE A 15 Weedy check 0 a 0 a 0 f 0 g 763 a 751 a 150 a LSD (P=.05) 0.0 0.0 14.5 17.2 360.5 241.0 34.9 Standard Deviation 0.0 0.0 10.1 12.0 252.3 168.6 24.4 CV 0.0 0.0 13.96 17.47 148.8 100.02 27.11 Means followed by same letter do not significantly differ (P=.05, LSD)
151
WATERHEMP CONTROL IN CORN JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05B1A Weed Code AMATU Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type % FEMALE HRVST-MSTR YIELD YIELD Rating Unit % % T/HA BU/ACRE Rating Date Aug-23-05 Sep-19-05 Sep-19-05 Sep-19-05 Trt Treatment Form Form Rate Grow Appl No. Name Conc Ty pe Rate Unit Stg Code 10 12 13 14 1 Weedy check 50 a-d 25 b 2.0 c 32.5 c 2 Weed free check 0 e 22 b-e 7.5 a 118.8 a 3 isoxaflutole 480 SC 79 G A/HA PRE A 41 d 21 cde 6.3 a 100.7 a atrazine 480 SC 800 G A/HA PRE A 4 dicamba 480 SL 600 G A/HA POST B 53 a-d 22 b-e 7.4 a 117.2 a 5 dicamba/diflufenzopyr 70 WG 200 G A/HA POST B 57 ab 24 bc 6.0 ab 95.7 ab Agral 90 SO 0.250 % V/V POST B UAN 28 % SO 1.250 % V/V POST B 6 dicamba/atrazine 401 F 1800 G A/HA POST B 50 a-d 21 cde 6.5 a 102.8 a 7 mesotrione 480 SC 100 G A/HA POST B 54 abc 21 cde 6.4 a 101.7 a atrazine 480 SC 280 G A/HA POST B Agral 90 SO 0.200 % V/V POST B 8 isoxaflutole 480 SC 79 G A/HA PRE A 48 a-d 19 e 7.4 a 118.0 a atrazine 480 SC 800 G A/HA PRE A dicamba 480 SL 600 G A/HA POST C 9 isoxaflutole 480 SC 79 G A/HA PRE A 43 cd 22 b-e 6.7 a 106.3 a atrazine 480 SC 800 G A/HA PRE A dicamba/diflufenzopyr 70 WG 200 G A/HA POST C Agral 90 SO 0.250 % V/V POST C UAN 28 % SO 1.250 % V/V POST C 10 isoxaflutole 480 SC 79 G A/HA PRE A 53 a-d 23 bcd 7.0 a 111.2 a atrazine 480 SC 800 G A/HA PRE A dicamba/atrazine 401 F 1800 G A/HA POST C 11 isoxaflutole 480 SC 79 G A/HA PRE A 50 a-d 22 b-e 7.3 a 117.0 a atrazine 480 SC 800 G A/HA PRE A mesotrione 480 SC 100 G A/HA POST C atrazine 480 SC 280 G A/HA POST C Agral 90 SO 0.200 % V/V POST C 12 dimethenamid 900 EC 1250 G A/HA PRE A 53 a-d 20 de 6.7 a 106.9 a dicamba/atrazine 401 F 1800 G A/HA PRE A 13 s-metolachlor/atrazine 720 SC 2520 G A/HA PRE A 53 a-d 22 b-e 7.1 a 112.4 a mesotrione 480 SC 140 G A/HA PRE A 14 rimsulfuron 25 DF 15 G A/HA PRE A 58 a 21 b-e 4.4 b 69.3 b s-metolachlor 915 EC 684 G A/HA PRE A dicamba 480 SL 360 G A/HA PRE A 15 Weedy check 45 bcd 29 a 2.3 c 36.0 c LSD (P=.05) 12.7 3.5 1.76 28.11 Standard Deviation 8.9 2.4 1.22 19.47 CV 18.95 10.92 20.19 20.19 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions: There was no injury in corn with the preemergence and postemergence herbicides evaluated. All of the preemergence application of isoxaflutole plus atrazine and the postemergence applications of dicamba, dicamba/diflufenzopyr, dicamba/atrazine or mesotrione + atrazine provided only fair full season control of waterhemp. The sequential applications of isoxaflutole plus atrazine applied preemergence followed by a postemergence application of either dicamba, dicamba/diflufenzopyr, dicamba/atrazine or mesotrione + atrazine provided excellent full season control of waterhemp. The preemergence applications of dimethenamid plus dicamba/atrazine provided excellent full season control of waterhemp, s-metolachlor/atrazine plus mesotrione provided fair control and rimsulfuron plus s-metolachlor plus dicamba provided poor control of waterhemp. Corn yields generally corresponded closely with the level of waterhemp control.
152
VOLUNTEER ADZUKI BEAN CONTROL IN CORN WITH PREEMERGENCE HERBICIDES I CHRIS KRAMER, PETER SIKKEMA EXPERIMENT ID: PWC05B2A CROP: ZEAMX, CORN, FIELD (PIONEER 37J99). Planted: May-12-05, 75600 S/H, 4 CM Deep, 76 CM Row Width. Planting Method: SEEDED. Emerged On: May-26-05. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 8 M. Expt. Location: RC Range - G3. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A Date : May-16-05 Crop 1 ZEAMX N/A Time of Day: 4:30 PM Height : Method : SPRAY Timing : PREPRE Weed 1 PHSAN Air Temp. : 15.2 C Density : % Humidity : 48 Wind Speed : 4.4 KPH Dew Present: N Soil Moist.: NORMAL Cloud Cover: 90% Equipment : C02 Backp Pressure : 207 kPa Nozzle Type: Low Drift Nozzle Size: 12002 Noz.Spacing: 50 CM Boom Length: 2 M Boom Height: 50 CM Carrier : WATER Appl.Volume: 200 L/ha Propellant : CO2 Weed Code PHSAN PHSAN PHSAN PHSAN Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type INJURY INJURY INJURY CONTROL CONTROL CONTROL DENSITY Rating Unit % % % % % % #/M2 Rating Date Jun-02-05 Jun-09-05 Jun-22-05 Jun-22-05 Jul-22-05 Aug-04-05 Aug-03-05 Crop Stage 3 LEAF 6 LF 5-8 LF Crop Stage Scale 14-17 CM 30-40 CM 57-77 CM Weed Stage UNI-5 TR 1-10 TRI 3-12 TRI Weed Density, Unit 59 /M2 58 /M2 62 /M2 Trt-Eval Interval 7 DA-EM 14 DA-EM 28 DA-EM 28 DA-EM 56 DA-EM 70 DA-EM 7 DA-EM Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 7 1 Weedy check 0 a 0 a 0 a 0 d 0 f 0 d 33 a 2 Weed free check 0 a 0 a 0 a 75 a 100 a 100 a 0 c 3 atrazine 480 SC 1500 G A/HA PRE A 0 a 0 a 0 a 4 d 0 f 0 d 29 ab 4 dicamba 480 SL 600 G A/HA PRE A 0 a 0 a 0 a 44 bc 14 d 20 c 33 a 5 dicamba/atrazine 401 SC 1800 G A/HA PRE A 0 a 0 a 0 a 68 ab 68 b 59 b 13 bc 6 isoxaflutole 480 SC 105 G A/HA PRE A 0 a 0 a 0 a 8 d 3 ef 8 cd 37 a 7 isoxaflutole 480 SC 105 G A/HA PRE A 0 a 0 a 0 a 14 d 3 ef 0 d 34 a atrazine 480 SC 1063 G A/HA PRE A 8 mesotrione 480 SC 175 G A/HA PRE A 0 a 0 a 0 a 20 cd 25 c 18 c 32 ab 9 mesotrione 480 SC 175 G A/HA PRE A 0 a 0 a 0 a 9 d 10 de 11 cd 22 ab atrazine 480 SC 1000 G A/HA PRE A 10 Weedy check 0 a 0 a 0 a 0 d 0 f 0 d 35 a LSD (P=.05) 0.0 0.0 0.3 24.7 9.6 13.2 18.5 Standard Deviation 0.0 0.0 0.2 17.0 6.6 9.1 12.8 CV 0.0 0.0 455.42 70.87 29.9 42.2 47.87 Means followed by same letter do not significantly differ (P=.05, LSD) Weed Code PHSAN Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type BIOMASS HRVST-MSTR YIELD YIELD Rating Unit G/M2 % T/HA BU/AC Rating Date Aug-03-05 Oct-18-05 Oct-18-05 Oct-18-05 Trt-Eval Interval 70 DA-EM 145DA-EM 145DA-EM 145DA-EM Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 8 10 11 12 1 Weedy check 61.1 a 17 a 2.0 b 32.6 b 2 Weed free check 0.0 d 17 a 3.7 ab 59.0 ab 3 atrazine 480 SC 1500 G A/HA PRE A 51.3 ab 17 a 2.7 ab 43.4 ab 4 dicamba 480 SL 600 G A/HA PRE A 40.4 abc 17 a 4.6 a 73.0 a 5 dicamba/atrazine 401 SC 1800 G A/HA PRE A 20.0 cd 17 a 2.2 b 35.1 b 6 isoxaflutole 480 SC 105 G A/HA PRE A 49.1 ab 17 a 2.3 b 36.1 b 7 isoxaflutole 480 SC 105 G A/HA PRE A 43.4 abc 17 a 3.9 ab 62.8 ab atrazine 480 SC 1063 G A/HA PRE A 8 mesotrione 480 SC 175 G A/HA PRE A 51.5 ab 17 a 3.5 ab 56.4 ab 9 mesotrione 480 SC 175 G A/HA PRE A 31.5 bc 17 a 2.8 ab 44.4 ab atrazine 480 SC 1000 G A/HA PRE A 10 Weedy check 47.2 ab 17 a 2.2 b 34.8 b LSD (P=.05) 26.05 0.9 1.95 31.15 Standard Deviation 17.95 0.6 1.33 21.18 CV 45.39 3.7 44.32 44.32 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions: There was no injury in corn with the preemergence herbicides evaluated. All of the preemergence herbicide treatments evaluated (atrazine, dicamba, dicamba/atrazine, isoxaflutole, isoxaflutole + atrazine, mesotrione and mesotrione + atrazine) provided poor control of volunteer adzuki beans in corn.
153
VOLUNTEER ADZUKI BEAN CONTROL IN CORN WITH PREEMERGENCE HERBICIDES II TODD COWAN, PETER SIKKEMA Experiment ID: PWC05B2B CROP: ZEAMX, CORN, FIELD (PIONEER 37J99 (CLRFLD)). Planted: May-09-05, 74000 S/HA, 5.5 CM Deep, 75 CM Row Width. Planting Method: PRECISON PLANTER. Emerged On: May-24-05. FIELD Site. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 44 M. Expt. Location: HRS Range - S14. Site Description: Soil Texture: MEDIUM. %OM: 5.3 %Sand: 38.6 %Silt: 37.1 %Clay: 24.3 pH: 7.6 CEC: 35. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A Date : May-14-05 Crop 1 ZEAMX Time of Day: 2:15 PM Height : Method : CO2 SPRAY Timing : PRE Weed 1 PHSAN Placement : SOIL Stg.Scale: Air Temp. : 20.4 C Density : % Humidity : 65 Wind Speed : 6.4 KM/H Dew Present: N Soil Moist.: SB-M,SF-W Cloud Cover: 100% Equipment : CO2 SPRAY Pressure : 241 KPA Nozzle Type: FLAT FAN Nozzle Size: 8002 VS Noz.Spacing: 50 CM Boom Length: 2 M Boom Height: 50 CM Carrier : WATER Appl.Volume: 200 L/HA Propellant : CO2 Weed Code PHSAN PHSAN PHSAN PHSAN Crop Code ZEAMX ZEAMX ZEAMX ZEAMX ZEAMX ZEAMX Rating Data Type INJURY INJURY INJURY INJURY CONTROL CONTROL DENSITY DRY WEIGHT Rating Unit % % % % % % #/ M2 G/M2 Rating Date May -30-05 Jun-06-05 Jun-20-05 Jul-18-05 Jun-20-05 Jul-18-05 Aug-04-05 Aug-04-05 Crop Stage 1 LEAF 4 LEAF 8 LEAF 12 LEAF 8 LEAF 12 LEAF Crop Stage Scale 9.5 CM 22.5 CM 66.8 CM 145.8 66.8 CM 145.8 Weed Stage 2 TRI 4 TRI Weed Density, Unit 93 M2 90 M2 Trt-Eval Interval 7-DAE 14-DAT 28-DAE 56-DAE 28-DAE 56-DAE 70 DAE 70 DAE Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 7 8 1 Weedy check 0 a 0 a 0 a 0 a 0 d 0 e 70 a 176.11 a 2 Weed free check 0 a 0 a 0 a 0 a 100 a 100 a 0 e 0.00 e 3 atrazine 480 SC 1500 G A/HA PRE A 0 a 0 a 0 a 0 a 0 d 5 de 48 abc 60.58 c 4 dicamba 480 SL 600 G A/HA PRE A 0 a 0 a 0 a 0 a 60 b 70 b 25 cd 28.31 cde 5 dicamba/atrazine 401 SC 1800 G A/HA PRE A 0 a 0 a 0 a 0 a 53 b 75 b 21 de 24.38 de 6 isoxaflutole 480 SC 105 G A/HA PRE A 0 a 0 a 0 a 0 a 20 c 11 d 61 ab 50.51 cd 7 isoxaflutole 480 SC 105 G A/HA PRE A 0 a 0 a 0 a 0 a 28 c 26 c 59 ab 44.29 cd atrazine 480 SC 1063 G A/HA PRE A 8 mesotrione 480 SC 175 G A/HA PRE A 0 a 0 a 0 a 0 a 25 c 5 de 40 bcd 37.25 cd 9 mesotrione 480 SC 175 G A/HA PRE A 0 a 0 a 0 a 0 a 30 c 15 d 47 abc 53.42 cd atrazine 480 SC 1000 G A/HA PRE A 10 Weedy check 0 a 0 a 0 a 0 a 0 d 0 e 64 a 137.44 b LSD (P=.05) 0.0 0.0 0.0 0.0 13.0 10.7 22.9 34.224 Standard Deviation 0.0 0.0 0.0 0.0 9.0 7.3 15.8 23.587 CV 0.0 0.0 0.0 0.0 28.53 23.87 36.44 38.52 Means followed by same letter do not significantly differ (P=.05, LSD) Crop Code ZEAMX ZEAMX ZEAMX Rat ing Data Type MOICON YIELD YIELD Rating Unit % T/HA BU/AC Rating Date Oct-11-05 Oct-11-05 Oct-11-05 Trt-Eval Interval 140 DAE 140 DAE 140 DAE Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 9 11 12 1 Weedy check 20.6 bcd 8.994 b 143.29 b 2 Weed free check 20.5 bcd 12.105 a 192.86 a 3 atrazine 480 SC 1500 G A/HA PRE A 22.1 ab 6.810 cd 108.49 cd 4 dicamba 480 SL 600 G A/HA PRE A 20.0 d 8.315 b 132.47 b 5 dicamba/atrazine 401 SC 1800 G A/HA PRE A 20.2 d 8.967 b 142.87 b 6 isoxaflutole 480 SC 105 G A/HA PRE A 23.0 a 6.185 d 98.53 d 7 isoxaflutole 480 SC 105 G A/HA PRE A 22.5 a 7.222 c 115.05 c atrazine 480 SC 1063 G A/HA PRE A 8 mesotrione 480 SC 175 G A/HA PRE A 22.5 a 6.732 cd 107.25 cd 9 mesotrione 480 SC 175 G A/HA PRE A 20.5 cd 8.288 b 132.04 b atrazine 480 SC 1000 G A/HA PRE A 10 Weedy check 21.8 abc 8.253 b 131.48 b LSD (P=.05) 1.54 0.9911 15.789 Standard Deviation 1.06 0.6830 10.882 CV 4.95 8.34 8.34 Means followed by same letter do not significantly differ (P=.05, LSD) CONCLUSIONS: Tthere was no injury in corn with the preemergence herbicides evaluated. Atrazine, isoxaflutole, isoxaflutole + atrazine, mesotrione and mesotrione + atrazine provided poor control of volunteer adzuki beans in corn. The preemergence application of dicamba and dicamba/atrazine provided fair full-season control of volunteer adzuki beans in corn.
154
YELLOW FOXTAIL CONTROL IN CORN CHRISTY SHROPSHIRE, PETER SIKKEMA Experiment ID: PWC05B3A CROP: ZEAMX, CORN, FIELD (ROUNDUP READY) (DKC 53-33). Planted: May-12-05, 75600 SEEDS/HA, 4 CM Deep, 76 CM Row Width. Emerged On: May-26-05. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 3. Plot Size: 2 M x 30 M. Expt. Location: RC - Range H11. Site Description: Soil Texture: CLAY LOAM. %OM: 5.7 %Sand: 32.2 %Silt: 33.7 %Clay: 34.1 pH: 7.4 CEC: 17. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A B C Application: A B C Date : May-16-05 May-31-05 Jun-07-05 Crop 1 ZEAMX NOT EMERG 2-3 LF 3-4 LF Time of Day: 16:20 15:35 07:50 Height : Method : Timing : PRE POST 1 POST 2 Weed 1 SETLU NOT EMERG 1-2 LF 3-5 LF Placement : Stg.Scale: 1-4 CM 2-5 CM Air Temp. : 13.5 C 25.7 C 22.3 C Density : 13 /M2 60 /M2 % Humidity : 46 40 76 Weed 2 SETVI NOT EMERG NOT EMERG 2-4 LF Wind Speed : 2.7 KM/H 2.8 KM/H 2.2 KM/H Stg.Scale: 2-5 CM Dew Present: N N Y Density : 7 /M2 Soil Moist.: MOIST DRY AT DEPTH Cloud Cover: 100% 30% 0% Equipment : CO2 Backp CO2 Backp CO2 Backp Pressure : 207 kPa 207 kPa 207 kPa Nozzle Type: LOW DRIFT LOW DRIFT LOW DRIFT Nozzle Size: ULD120-02 ULD120-02 ULD120-02 Noz.Spacing: 50 CM 50 CM 50 CM Boom Length: 2 M 2 M 2 M Boom Height: 50 CM 50 CM 50 CM Carrier : WATER WATER WATER Appl.Volume: 200 L/ha 200 L/ha 200 L/ha Propellant : CO2 CO2 CO2 Weed Code SETLU SETVI SETLU SETVI Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type INJURY INJURY CONTROL CONTROL CONTROL CONTROL YIELD Rating Unit % % % % % % BU/AC Rating Date Jun-14-05 Jul-05-05 Jul-05-05 Jul-05-05 Aug-02-05 Aug-02-05 Sep-30-05 Crop Stage 7-8 LF 12-13 LF Crop Stage Scale 40 CM 0.9-1.2M Weed Stage 9-20+ LF 10-20+ L 14-20+ L 12-20+ L Weed Density, Unit 15 /M2 4.5 /M2 17 /M2 11 /M2 Trt-Eval Interval 7 DAT 28 DAT 28 DAT 28 DAT 56 DAT 56 DAT Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 9 1 Untreated Check 0 a 0 a 0 d 0 f 0 c 0 f 55.8 d 2 isoxaflutole 480 SC 105 G A/HA PRE A 0 a 0 a 84 bc 96 b-e 81 ab 95 a-e 120.2 a atrazine 480 SC 1063 G A/HA PRE A 3 s-metolachlor/benoxacor 915 EC 1600 G A/HA PRE A 0 a 0 a 95 ab 95 cde 92 a 96 a-d 86.8 c 4 s-metolachlor/atrazine/benoxac 720 SC 2880 G A/HA PRE A 0 a 0 a 97 ab 95 b-e 96 a 95 a-e 100.4 bc 5 dimethenamid-p 720 EC 693 G A/HA PRE A 0 a 0 a 95 ab 94 e 95 a 95 cde 88.3 c 6 pendimethalin 400 EC 1680 G A/HA PRE A 0 a 0 a 76 c 97 abc 72 b 97 abc 100.9 bc 7 s-metolachlor/atrazine/benoxac 720 SC 2880 G A/HA PRE A 0 a 0 a 95 ab 96 a-d 94 a 96 a-d 129.6 a mesotrione 480 SC 140 G A/HA PRE A 8 rimsulfuron 25 DF 15 G A/HA PRE A 0 a 0 a 73 c 94 de 68 b 96 a-d 121.2 a s-metolachlor/benoxacor 915 EC 684 G A/HA PRE A dicamba 480 SL 360 G A/HA PRE A 9 rimsulfuron 25 DF 12.5 G A/HA POST 1 B 0 a 0 a 97 a 96 b-e 96 a 95 b-e 121.9 a s-metolachlor/benoxacor 915 EC 573 G A/HA POST 1 B dicamba 480 SL 300 G A/HA POST 1 B Agral 90 SO 0.200 % V/V POST 1 B 10 nicosulfuron/rimsulfuron 75 DF 25 G A/HA POST 2 C 0 a 0 a 96 ab 96 a-d 93 a 94 de 114.6 ab Agral 90 SO 0.200 % V/V POST 2 C 11 nicosulfuron 75 DF 25 G A/HA POST 2 C 0 a 0 a 97 ab 97 abc 96 a 97 ab 91.7 c Agral 90 SO 0.200 % V/V POST 2 C 12 nicosulfuron 75 DF 25 G A/HA POST 2 C 0 a 0 a 98 a 98 a 97 a 97 a 122.4 a Merge SO 0.500 % V/V POST 2 C UAN 28% SO 5.000 L/HA POST 2 C 13 primisulfuron/dicamba 47.4 WG 166 G A/HA POST 2 C 0 a 0 a 97 ab 94 de 93 a 93 e 121.5 a Agral 90 SO 0.200 % V/V POST 2 C 14 foramsulfuron 45 SC 70 G A/HA POST 2 C 0 a 0 a 97 ab 97 ab 95 a 97 abc 123.0 a UAN 28 % SO 2.500 L/HA POST 2 C LSD (P=.05) 0.0 0.0 13.1 2.3 17.2 2.0 17.51 Standard Deviation 0.0 0.0 7.8 1.4 10.3 1.2 10.43 CV 0.0 0.0 9.15 1.55 12.28 1.35 9.74 Means followed by same letter do not significantly differ (P=.05, LSD)
155
YELLOW FOXTAIL CONTROL IN CORN CHRISTY SHROPSHIRE, PETER SIKKEMA Experiment ID: PWC05B3A Crop Code ZEAMX Rating Data Type YIELD Rating Unit T/HA Rating Date Sep-30-05 Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 10 1 Untreated Check 3.50 d 2 isoxaflutole 480 SC 105 G A/HA PRE A 7.55 a atrazine 480 SC 1063 G A/HA PRE A 3 s-metolachlor/benoxacor 915 EC 1600 G A/HA PRE A 5.45 c 4 s-metolachlor/atrazine/benoxac 720 SC 2880 G A/HA PRE A 6.30 bc 5 dimethenamid-p 720 EC 693 G A/HA PRE A 5.54 c 6 pendimethalin 400 EC 1680 G A/HA PRE A 6.33 bc 7 s-metolachlor/atrazine/benoxac 720 SC 2880 G A/HA PRE A 8.13 a mesotrione 480 SC 140 G A/HA PRE A 8 rimsulfuron 25 DF 15 G A/HA PRE A 7.61 a s-metolachlor/benoxacor 915 EC 684 G A/HA PRE A dicamba 480 SL 360 G A/HA PRE A 9 rimsulfuron 25 DF 12.5 G A/HA POST 1 B 7.65 a s-metolachlor/benoxacor 915 EC 573 G A/HA POST 1 B dicamba 480 SL 300 G A/HA POST 1 B Agral 90 SO 0.200 % V/V POST 1 B 10 nicosulfuron/rimsulfuron 75 DF 25 G A/HA POST 2 C 7.19 ab Agral 90 SO 0.200 % V/V POST 2 C 11 nicosulfuron 75 DF 25 G A/HA POST 2 C 5.76 c Agral 90 SO 0.200 % V/V POST 2 C 12 nicosulfuron 75 DF 25 G A/HA POST 2 C 7.69 a Merge SO 0.500 % V/V POST 2 C UAN 28% SO 5.000 L/HA POST 2 C 13 primisulfuron/dicamba 47.4 WG 166 G A/HA POST 2 C 7.63 a Agral 90 SO 0.200 % V/V POST 2 C 14 foramsulfuron 45 SC 70 G A/HA POST 2 C 7.72 a UAN 28 % SO 2.500 L/HA POST 2 C LSD (P=.05) 1.099 Standard Deviation 0.655 CV 9.74 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions: There was no injury in corn with the preemergence and postemergence herbicides evaluated. All of the herbicide treatments evaluated provided excellent early and full-season control of green foxtail. The preemergence application of s-metolachlor, s-metolachlor/atrazine, dimethenamid-p and s-metolachlor/atrazine plus mesotrione provided excellent full-season control of yellow foxtail. The preemergence application of isoxaflutole + atrazine provided good control and the preemergence application of pendimethalin or rimsulfuron plus s-metolachlor plus dicamba provided only fair control of yellow foxtail. The early postemergence application of rimsulfuron plus s -metolachlor plus dicamba provided excellent control of yellow foxtail. The late postemergence application of nicosulfuron/rimsulfuron, nicosulfuron, nicosulfuron plus Merge, primisulfuron and foramsulfuron all provided excellent control of yellow foxtail in this study. These results will have to be confirmed in future studies.
156
FALL PANICUM CONTROL IN CORN CHRISTY SHROPSHIRE, PETER SIKKEMA Experiment ID: PWC05B4A CROP: ZEAMX, CORN, FIELD (ROUNDUP READY) (DKC 53-33). Planted: May-12-05, 75600 SEEDS/HA, 4 CM Deep, 76 CM Row Width. Emerged On: May-26-05. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 40 M. Expt. Location: RC - Farm. Site Description: Soil Texture: SANDY LOAM. %OM: 2.9 %Sand: 74 %Silt: 18 %Clay: 8 pH: 6.5 CEC: 8. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A B C Application: A B C Date : May-16-05 May-31-05 Jun-10-05 Crop 1 ZEAMX NOT EMERG 2-3 LF 5-6 LF Time of Day: 15:55 15:45 11:40 Height : Method : Timing : PRE POST 1 POST 2 Weed 1 DIGSS NOT EMERG 1-3 LF 3-6 LF Placement : Stg.Scale: 0.5-2 CM 2-8 CM Air Temp. : 13.8 C 25.1 C 31.2 C Density : 5 /M2 13 /M2 % Humidity : 45 40 64 Weed 2 PANDI NOT EMERG 1-2 LF 3-6 LF Wind Speed : 1.8 KM/H 5.9 KM/H 5.2 KM/H Stg.Scale: 0.5 CM 2-10 CM Dew Present: N N N Density : 9.5 /M2 28 /M2 Soil Moist.: MOIST DRY AT DEPTH Cloud Cover: 100% 30% 0% Equipment : CO2 Backp CO2 Backp CO2 Backp Pressure : 207 kPa 207 kPa 207 kPa Nozzle Type: LOW DRIFT LOW DRIFT LOW DRIFT Nozzle Size: ULD120-02 ULD120-02 ULD120-02 Noz.Spacing: 50 CM 50 CM 50 CM Boom Length: 2 M 2 M 2 M Boom Height: 50 CM 50 CM 50 CM Carrier : WATER WATER WATER Appl.Volume: 200 L/ha 200 L/ha 200 L/ha Propellant : CO2 CO2 CO2 Weed Code DIGSS PANDI DIGSS PANDI Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type INJURY INJURY CONTROL CONTROL CONTROL CONTROL YIELD Rating Unit % % % % % % BU/AC Rating Date Jun-17-05 Jul-08-05 Jul-08-05 Jul-08-05 Aug-05-05 Aug-05-05 Oct-03-05 Crop Stage 8 LF 14 LF Crop Stage Scale 60 CM 1.5-1.7M Weed Stage 4-20+ LF 20+ LF 10-20+ L 10-20+ L Weed Density, Unit 11.5/M2 11 /M2 25 /M2 16 /M2 Footnote Number 1 2 Trt-Eval Interval 7 DAT 28 DAT 28 DAT 28 DAT 56 DAT 56 DAT Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 9 1 Untreated Check 0 e 0 a 0 f 0 e 0 e 0 e 108.5 bc 2 isoxaflutole 480 SC 105 G A/HA PRE A 0 e 0 a 96 a 96 ab 96 a 96 ab 169.3 a atrazine 480 SC 1063 G A/HA PRE A 3 s-metolachlor/benoxacor 915 EC 1600 G A/HA PRE A 0 e 0 a 89 a 92 ab 90 ab 94 ab 152.5 ab 4 s-metolachlor/atrazine/benoxac 720 SC 2880 G A/HA PRE A 0 e 0 a 92 a 97 ab 91 ab 97 ab 165.4 a 5 dimethenamid-p 720 EC 693 G A/HA PRE A 0 e 0 a 87 ab 96 ab 89 abc 97 ab 143.9 ab 6 pendimethalin 400 EC 1680 G A/HA PRE A 0 e 0 a 78 bc 69 c 81 abc 71 c 149.9 ab 7 s-metolachlor/atrazine/benoxac 720 SC 2880 G A/HA PRE A 0 e 0 a 95 a 85 b 90 ab 89 b 136.6 abc mesotrione 480 SC 140 G A/HA PRE A 8 rimsulfuron 25 DF 15 G A/HA PRE A 0 e 0 a 76 bc 94 ab 75 bc 96 ab 167.9 a s-metolachlor/benoxacor 915 EC 684 G A/HA PRE A dicamba 480 SL 360 G A/HA PRE A 9 rimsulfuron 25 DF 12.5 G A/HA POST 1 B 0 e 0 a 73 c 93 ab 78 bc 96 ab 150.6 ab s-metolachlor/benoxacor 915 EC 573 G A/HA POST 1 B dicamba 480 SL 300 G A/HA POST 1 B Agral 90 SO 0.200 % V/V POST 1 B 10 nicosulfuron/rimsulfuron 75 DF 25 G A/HA POST 2 C 9 a 0 a 96 a 98 a 96 a 98 a 135.8 abc Agral 90 SO 0.200 % V/V POST 2 C 11 nicosulfuron 75 DF 25 G A/HA POST 2 C 4 c 0 a 74 c 95 ab 71 c 95 ab 138.8 abc Agral 90 SO 0.200 % V/V POST 2 C 12 nicosulfuron 75 DF 25 G A/HA POST 2 C 6 b 0 a 92 a 98 a 90 ab 98 a 147.5 ab Merge SO 0.500 % V/V POST 2 C UAN 28% SO 5.000 L/HA POST 2 C 13 primisulfuron/dicamba 47.4 WG 166 G A/HA POST 2 C 3 d 0 a 33 d 96 ab 38 d 97 ab 37.7 d Agral 90 SO 0.200 % V/V POST 2 C 14 foramsulfuron 45 SC 70 G A/HA POST 2 C 0 e 0 a 21 e 33 d 11 e 29 d 91.6 c UAN 28 % SO 2.500 L/HA POST 2 C LSD (P=.05) 1.1 0.0 10.6 11.6 17.9 8.9 51.35 Standard Deviation 0.8 0.0 7.4 8.0 12.5 6.2 35.94 CV 52.91 0.0 10.43 9.81 17.56 7.49 26.54 Means followed by same letter do not significantly differ (P=.05, LSD) Column 1 Footnote: STUNTING AND YELLOW FLASH. Column 3 Footnote: DIGIS AND DIGSA PRESENT.
157
FALL PANICUM CONTROL IN CORN CHRISTY SHROPSHIRE, PETER SIKKEMA Experiment ID: PWC05B4A Crop Code ZEAMX Rating Data Type YIELD Rating Unit T/HA Rating Date Oct-03-05 Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 10 1 Untreated Check 6.81 bc 2 isoxaflutole 480 SC 105 G A/HA PRE A 10.63 a atrazine 480 SC 1063 G A/HA PRE A 3 s-metolachlor/benoxacor 915 EC 1600 G A/HA PRE A 9.57 ab 4 s-metolachlor/atrazine/benoxac 720 SC 2880 G A/HA PRE A 10.38 a 5 dimethenamid-p 720 EC 693 G A/HA PRE A 9.03 ab 6 pendimethalin 400 EC 1680 G A/HA PRE A 9.41 ab 7 s-metolachlor/atrazine/benoxac 720 SC 2880 G A/HA PRE A 8.57 abc mesotrione 480 SC 140 G A/HA PRE A 8 rimsulfuron 25 DF 15 G A/HA PRE A 10.54 a s-metolachlor/benoxacor 915 EC 684 G A/HA PRE A dicamba 480 SL 360 G A/HA PRE A 9 rimsulfuron 25 DF 12.5 G A/HA POST 1 B 9.46 ab s-metolachlor/benoxacor 915 EC 573 G A/HA POST 1 B dicamba 480 SL 300 G A/HA POST 1 B Agral 90 SO 0.200 % V/V POST 1 B 10 nicosulfuron/rimsulfuron 75 DF 25 G A/HA POST 2 C 8.52 abc Agral 90 SO 0.200 % V/V POST 2 C 11 nicosulfuron 75 DF 25 G A/HA POST 2 C 8.71 abc Agral 90 SO 0.200 % V/V POST 2 C 12 nicosulfuron 75 DF 25 G A/HA POST 2 C 9.26 ab Merge SO 0.500 % V/V POST 2 C UAN 28% SO 5.000 L/HA POST 2 C 13 primisulfuron/dicamba 47.4 WG 166 G A/HA POST 2 C 2.36 d Agral 90 SO 0.200 % V/V POST 2 C 14 foramsulfuron 45 SC 70 G A/HA POST 2 C 5.75 c UAN 28 % SO 2.500 L/HA POST 2 C LSD (P=.05) 3.223 Standard Deviation 2.256 CV 26.54 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions: There was no commercially significant injury in corn with the preemergence and postemergence herbicides evaluated. The preemergence application of isoxaflutole plus atrazine, s-metolachlor, s -metolachlor/atrazine, dimethenamid-p, s-metolachlor/atrazine plus mesotrione, and rimsulfuron plus s-metolachlor plus dicamba provided good to excellent full-season control of crabgrass and fall panicum. The preemergence application of pendimethalin provided good control of crabgrass but only fair control of fall panicum. The early postemergence application of rimsulfuron plus s -metolachlor plus dicamba prov ided excellent control of fall panicum but fair control of crabgrass. The late postemergence application of nicosulfuron/rimsulfuron provided excellent full-season control of crabgrass and fall panicum. The late postemergence application of nicosulfuron provided excellent full-season control of fall panicum and fair control of crabgrass. The late postemergence application of primisulfuron/dicamba provided excellent full-season control of fall panicum and poor control of crabgrass. The late postemergence application of foramsulfuron provided poor control of crabgrass and fall panicum. These results will have to be confirmed in future studies.
158
BUR CUCUMBER CONTROL IN CORN I DAVE BILYEA, DARREN ROBINSON Experiment ID: PWC05B5A CROP: ZEAMX, CORN, FIELD (NK 3030). Planted: May-10-05, 75.000 S/H, 4 CM Deep, 75 CM Row Width. Planting Method: PRECISION PLANTER. Emerged On: May-18-05. FIELD Site. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 40 M. Expt. Location: Wayne Balmer I. Site Description: Soil Texture: VERY FINE SANDY LOAM. %OM: 6.1 %Sand: 76 %Silt: 14.4 %Clay: 9.6 pH: 7.4 APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A B Date : May-18-05 Crop 1 ZEAMX 4-5 LF Time of Day: 9:00 Height : Timing : PRE Weed 1 SIYAN COT 2-11 LF Placement : SOIL Stg.Scale: Air Temp. : 15 Density : 11 SQ M 12 SQ M % Humidity : 60 80 Wind Speed : 4 KPH 0 KPH Cloud Cover: 50% 100% Equipment : CO2 SPRAY CO2 SPRAY Pressure : 207 207 Nozzle Type: AIR INDUC AIR INDUC Nozzle Size: UDL120-02 UDL120-02 Noz.Spacing: 50 CM 50 CM Boom Length: 2.0 M 2.0 M Boom Height: 50 CM 50 CM Carrier : WATER WATER Appl.Volume: 200 L/HA 200 L/HA Propellant : Weed Code SIYAN SIYAN SIYAN SIYAN Crop Code ZEAMAX ZEAMX ZEAMX ZEAMX Rating Date Jun-15-05 Jul-09-05 Jul-09-05 Aug-09-05 Crop Stage 4 LF 10 LF 10 LF 13-14 LF Weed Stage 7-20+L 7-20+L 17-20+ Weed Density, Unit 79 SQ M 61 SQ M Trt-Eval Interval 7 DAT 28 DAT 28 DAT 56 DAT # Subsamples, Dec. 0 0 0 0 Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 1 Weedy check 0 a 0 a 0 c 0 c 2 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 33 b 0 c atrazine 480 SC 800 G A/HA PRE A 3 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 96 a 88 ab atrazine 480 SC 800 G A/HA PRE A atrazine 480 SC 1500 G A/HA POST A Assist SO 1.00 % V/V POST A 4 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 97 a 85 ab atrazine 480 SC 800 G A/HA PRE A bromoxynil 280 EC 280 G A/HA POST A atrazine 90 WG 1500 G A/HA POST A 5 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 99 a 88 ab atrazine 480 SC 800 G A/HA PRE A mesotrione 480 SC 100 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 6 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 97 a 90 a atrazine 480 SC 800 G A/HA PRE A mesotrione 480 SC 100 G A/HA POST A atrazine 90 WG 280 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 7 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 96 a 89 a atrazine 480 SC 800 G A/HA PRE A dicamba/atrazine 401 F 1800 G A/HA POST A 8 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 97 a 89 a atrazine 480 SC 800 G A/HA PRE A 2,4-D/atrazine 390 F 1404 G A/HA POST A 9 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 97 a 90 a atrazine 480 SC 800 G A/HA PRE A bentazon/atrazine 400 SC 1600 G A/HA POST A Assist SO 2.000 L/HA POST A 10 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 97 a 79 b atrazine 480 SC 800 G A/HA PRE A prosulfuron 75 WG 10 G A/HA POST A dicamba 480 SL 140 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 11 isoxaf lutole 480 SC 79 G A/HA PRE A 0 a 0 a 95 a 90 a atrazine 480 SC 800 G A/HA PRE A primisulfuron/dicamba 47.4 WG 166 G A/HA POST A Agral 90 SO 0.200 % V/V POST A LSD (P=.05) 0.0 0.0 10.7 9.8 Standard Deviation 0.0 0.0 7.4 6.8 CV 0.0 0.0 9.06 9.5 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions:There was no injury in corn with the preemergence and postemergence herbicides evaluated. Isoxaflutole/atrazine applied preemergence provided poor control of bur cucumber. The sequential applications of isoxaflutole/atrazine applied preemergence followed by either atrazine, bromoxynil + atrazine, mesotrione, mesotrione + atrazine, dicamba/atrazine, 2,4-D/atrazine, bentazon/atrazine or primisulfuron/dicamba applied postemergence all provided good control of bur cucumber. The sequential application of isoxaflutole/atrazine applied preemergence followed by prosulfuron + dicamba applied postemergence provided only fair control of bur cucumber.
159
BUR CUCUMBER CONTROL IN CORN II DAVE BILYEA, DARREN ROBINSON Experiment ID: PWC05B5B CROP:ZEAMX, CORN,FIELD (NK 3030). Planted:May-10-05,75000 S/H, 4CM Deep Planting Method:PRECISION PLANTER. Emerged On:May-18-05. FIELD Site. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 40 M. Expt. Location: Wayne Balmer II. Site Description: Soil Texture: VERY FINE SANDY LOAM. %OM: 6.1 %Sand: 76 %Silt: 14.4 %Clay: 9.6 pH: 7.4 APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A B Date : May-18-05 Crop 1 ZEAMX 6 LF Time of Day: 9:00 Height : Timing : PRE Weed 1 SIYAN COT 2-17 LF Placement : SOIL Stg.Scale: Air Temp. : 15 Density : 8 SQ M 65 SQ M % Humidity : 60 95 Wind Speed : 4 KPH 4 KPH Cloud Cover: 50% 90% Equipment : CO2 SPRAY CO2 SPRAY Pressure : 207 207 Nozzle Type: AIR INDUC AIR INDUC Nozzle Size: UDL120-02 UDL120-02 Noz.Spacing: 50 CM 50 CM Boom Length: 2.0 M 2.0 M Boom Height: 50 CM 50 CM Carrier : WATER WATER Appl.Volume: 200 L/HA 200 L/HA Propellant : Weed Code SIYAN SIYAN SIYAN SIYAN Crop Code ZEAMX ZEAMX ZEAMX ZEAMX Rating Data Type INJURY INJURY CONTROL CONTROL Rating Unit % % % % Rating Date Jun-25-05 Jul-18-05 Jul-18-05 Aug-09-05 Crop Stage 5 LF 14 LF 14 LF 13-14 LF Crop Stage Scale 12-14 L 12-14 L Weed Stage 6-20+ LF 6-20+ LF 16-20+ Weed Density, Unit 75 SQ M 75 SQ M 60 SQ M Trt-Eval Interval 7 DAT 28 DAT 28 DAT 47 DAT # Subsamples, Dec. 0 0 0 0 Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 1 Weedy check 0 a 0 a 0 d 0 c 2 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 43 c 48 b atrazine 480 SC 800 G A/HA PRE A 3 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 91 ab 79 a atrazine 480 SC 800 G A/HA PRE A atrazine 480 SC 1500 G A/HA POST A Assist SO 1.00 % V/V POST A 4 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 94 ab 78 a atrazine 480 SC 800 G A/HA PRE A bromoxynil 280 EC 280 G A/HA POST A atrazine 90 WG 1500 G A/HA POST A 5 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 95 ab 90 a atrazine 480 SC 800 G A/HA PRE A mesotrione 480 SC 100 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 6 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 96 a 89 a atrazine 480 SC 800 G A/HA PRE A mesotrione 480 SC 100 G A/HA POST A atrazine 90 WG 280 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 7 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 94 ab 80 a atrazine 480 SC 800 G A/HA PRE A dicamba/atrazine 401 F 1800 G A/HA POST A 8 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 95 a 76 a atrazine 480 SC 800 G A/HA PRE A 2,4-D/atrazine 390 F 1404 G A/HA POST A 9 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 91 ab 90 a atrazine 480 SC 800 G A/HA PRE A bentazon/atrazine 400 SC 1600 G A/HA POST A Assist SO 2.000 L/HA POST A 10 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 90 ab 69 ab atrazine 480 SC 800 G A/HA PRE A prosulfuron 75 WG 10 G A/HA POST A dicamba 480 SL 140 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 11 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 88 b 78 a atrazine 480 SC 800 G A/HA PRE A primisulfuron/dicamba 47.4 WG 166 G A/HA POST A Agral 90 SO 0.200 % V/V POST A LSD (P=.05) 0.0 0.0 7.3 22.5 Standard Deviation 0.0 0.0 5.1 15.6 CV 0.0 0.0 6.34 22.16 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions:There was no injury in corn with the preemergence and postemergence herbicides evaluated. Isoxaflutole/atrazine applied preemergence provided poor control of bur cucumber. The sequential applications of isoxaflutole/atrazine applied preemergence followed by either mesotrione, mesotrione + atrazine, dicamba/atrazine or bentazon/atrazine applied postemergence all provided good control of bur cucumber. The sequential applications of isoxaflutole/atrazine applied preemergence followed by either atrazine, bromoxynil + atrazine, 2,4-D/atrazine, prosulfuron + dicamba or primisulfuron/dicamba applied postemergence provided only fair control of bur cucumber.
160
BUR CUCUMBER CONTROL IN CORN III DAVE BILYEA, DARREN ROBINSON Experiment ID: PWC05B5C CROP: ZEAMX, CORN, FIELD (RR). Planted: May-10-05, 75000 S/HA, 75 CM Row Width. Planting Method: PRECISION PLANTER. Emerged On: May-18-05. FIELD Site. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 40 M. Expt. Location: Paul Mistele. Site Description: Soil Texture: LOAMY SAND. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A B Date : May-17-05 Crop 1 ZEAMX 5 LF Time of Day: 11:00 Height : Timing : PRE Weed 1 SIYAN COT 2-8 Placement : SOIL Stg.Scale: Air Temp. : 15 C Density : 4 SQ M 35 SQ M % Humidity : 45 66 Wind Speed : 4 KPH 0 KPH Cloud Cover: 50% 50% Equipment : CO2 SPRAY CO2 SPRAY Pressure : 207 207 Nozzle Type: AIR INDUC AIR INDUC Nozzle Size: UDL120-02 UDL120-02 Noz.Spacing: 50 CM 50 CM Boom Length: 2.0 M 2.0 M Boom Height: 50 CM 50 CM Carrier : WATER WATER Appl.Volume: 200 L/HA 200 L/HA Propellant : Weed Code SIYAN SIYAN SIYAN SIYAN Crop Code ZEAMX ZEAMX ZEAMX ZEAMX Rating Data Type INJURY INJURY CONTROL CONTROL Rating Unit % % % % Rating Date Jun-15-05 Jul-04-05 Jul-04-05 Aug-10-05 Crop Stage 4 LF 12 LF 12 LF 13-14 LF Weed Stage 12-20+ L 12-20+ L 16-20+ Weed Density, Unit 79 SQ M 79 SQ M 46 SQ M Trt-Eval Interval 7 DAT 28 DAT 28 DAT 56 DAT # Subsamples, Dec. 0 0 0 0 Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 1 Weedy check 0 a 0 a 0 c 0 c 2 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 39 b 56 b atrazine 480 SC 800 G A/HA PRE A 3 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 95 a 86 a atrazine 480 SC 800 G A/HA PRE A atrazine 480 SC 1500 G A/HA POST A Assist SO 1.00 % V/V POST A 4 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 90 a 85 a atrazine 480 SC 800 G A/HA PRE A bromoxynil 280 EC 280 G A/HA POST A atrazine 90 WG 1500 G A/HA POST A 5 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 98 a 97 a atrazine 480 SC 800 G A/HA PRE A mesotrione 480 SC 100 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 6 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 96 a 91 a atrazine 480 SC 800 G A/HA PRE A mesotrione 480 SC 100 G A/HA POST A atrazine 90 WG 280 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 7 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 94 a 90 a atrazine 480 SC 800 G A/HA PRE A dicamba/atrazine 401 F 1800 G A/HA POST A 8 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 94 a 92 a atrazine 480 SC 800 G A/HA PRE A 2,4-D/atrazine 390 F 1404 G A/HA POST A 9 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 91 a 89 a atrazine 480 SC 800 G A/HA PRE A bentazon/atrazine 400 SC 1600 G A/HA POST A Assist SO 2.000 L/HA POST A 10 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 81 a 86 a atrazine 480 SC 800 G A/HA PRE A prosulfuron 75 WG 10 G A/HA POST A dicamba 480 SL 140 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 11 isoxaflutole 480 SC 79 G A/HA PRE A 0 a 0 a 95 a 88 a atrazine 480 SC 800 G A/HA PRE A primisulfuron/dicamba 47.4 WG 166 G A/HA POST A Agral 90 SO 0.200 % V/V POST A LSD (P=.05) 0.0 0.0 21.5 18.4 Standard Deviation 0.0 0.0 14.9 12.7 CV 0.0 0.0 18.84 16.3 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions:There was no injury in corn with the preemergence and postemergence herbicides evaluated. Isoxaflutole/atrazine applied preemergence provided poor control of bur cucumber. The sequential applications of isoxaflutole/atrazine applied preemergence followed by either mesotrione, mesotrione + atrazine, dicamba/atrazine or 2,4-D/ atrazine applied postemergence all provided excellent control of bur cucumber. The sequential applications of isoxaflutole/atrazine applied preemergence followed by either atrazine, bromoxynil + atrazine, bentazon/atrazine, prosulfuron + dicamba or primisulfuron/dicamba applied postemergence provided good control of bur cucumber.
161
VOLUNTEER ADZUKI BEAN CONTROL IN CORN WITH POSTEMERGENCE HERBICIDES I CHRIS KRAMER, PETER SIKKEMA EXPERIMENT ID: PWC05C1A CROP: ZEAMX, CORN, FIELD (PIONEER 37J99). Planted: May-12-05, 75600 S/H, 4 CM Deep, 76 CM Row Width. Planting Method: SEEDED. Emerged On: May-26-05. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 8 M. Expt. Location: RC Range - G3. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A Date : Jun-08-05 Crop 1 ZEAMX 4-6 LF Time of Day: 7:30 PM Height : Method : SPRAY Timing : POSPOS Weed 1 PHSAN UNI-1 TRI Placement : BROFOL Stg.Scale: 3-10 CM Air Temp. : 29.4 C Density : 211 /M2 % Humidity : 50 Wind Speed : 1.9 KPH Dew Present: N Soil Moist.: NORMAL Cloud Cover: 60% Equipment : C02 Backp Pressure : 207 kPa Nozzle Type: Low Drift Nozzle Size: 12002 Noz.Spacing: 50 CM Boom Length: 2 M Boom Height: 50 CM Carrier : WATER Appl.Volume: 200 L/ha Propellant : CO2 Weed Code PHSAN PHSAN PHSAN PHSAN Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type INJURY INJURY INJURY CONTROL CONTROL DENSITY BIOMASS Rating Unit % % % % % #/M2 G/M2 Rating Date Jun-16-05 Jun-22-05 Jul-06-05 Jul-06-05 Aug-05-05 Aug-22-05 Aug-22-05 Crop Stage 8-9 LF 9-10 LF Crop Stage Scale 50-73 CM 116-157 Weed Stage 1-9 TRI UNI-8 TR Weed Density, Unit 77 /M2 65.5/M2 Trt-Eval Interval 7 DA-A 14 DA-A 28 DA-A 28 DA-A 56 DA-A 75 DA-A 75 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 7 1 Weedy check 0 a 0 a 0 a 0 g 0 f 47 a 60.5 a 2 Weed free check 0 a 0 a 0 a 100 a 100 a 0 d 0.0 b 3 atrazine 480 SC 1500 G A/HA POST A 0 a 0 a 0 a 94 bcd 93 c 2 d 0.5 b COC SO 1.00 % V/V POST A 4 dicamba 480 SL 600 G A/HA POST A 0 a 0 a 0 a 87 e 92 cd 7 cd 1.8 b 5 dicamba/diflufenzopyr 70 WG 200 G A/HA POST A 0 a 0 a 0 a 94 bcd 91 cd 1 d 0.9 b Agral 90 SO 0.250 % V/V POST A UAN 28 % SO 1.250 % V/V POST A 6 dicamba/atrazine 401 F 1800 G A/HA POST A 0 a 0 a 0 a 97 abc 98 ab 0 d 0.1 b 7 2,4-D/atrazine 390 F 1404 G A/HA POST A 0 a 0 a 0 a 92 cde 93 c 4 d 3.6 b 8 bromoxynil 280 EC 280 G A/HA POST A 0 a 0 a 0 a 94 bcd 91 cd 3 d 1.2 b atrazine 480 SC 1500 G A/HA POST A 9 prosulfuron 75 WG 10 G A/HA POST A 0 a 0 a 0 a 96 abc 93 bc 3 d 1.1 b dicamba 480 SL 140 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 10 primisulfuron/dicamba 47.4 WG 166 G A/HA POST A 0 a 0 a 0 a 90 de 88 de 3 d 1.1 b Agral 90 SO 0.200 % V/V POST A 11 mesotrione 480 SC 100 G A/HA POST A 0 a 0 a 0 a 80 f 84 e 15 c 9.6 b Agral 90 SO 0.200 % V/V POST A 12 mesotrione 480 SC 100 G A/HA POST A 0 a 0 a 0 a 98 ab 93 bc 3 d 1.3 b atrazine 480 SC 280 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 13 Weedy check 0 a 0 a 0 a 0 g 0 f 31 b 53.2 a LSD (P=.05) 0.3 0.0 0.0 5.1 5.0 8.6 9.65 Standard Deviation 0.2 0.0 0.0 3.6 3.5 6.0 6.75 CV 412.46 0.0 0.0 4.59 4.47 66.48 65.05 Means followed by same letter do not significantly differ (P=.05, LSD)
162
VOLUNTEER ADZUKI BEAN CONTROL IN CORN WITH POSTEMERGENCE HERBICIDES I CHRIS KRAMER, PETER SIKKEMA EXPERIMENT ID: PWC05C1A Weed Code Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type HRVST-MSTR YIELD YIELD Rating Unit % T/HA BU/AC Rating Date Oct-18-05 Oct-18-05 Oct-18-05 Trt-Eval Interval 132 DA-A 132 DA-A 132 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 9 10 11 1 Weedy check 17 a 3.0 e 47.9 e 2 Weed free check 16 ab 5.6 abc 89.2 abc 3 atrazine 480 SC 1500 G A/HA POST A 17 a 4.7 cd 75.1 cd COC SO 1.00 % V/V POST A 4 dicamba 480 SL 600 G A/HA POST A 17 a 5.7 abc 91.5 abc 5 dicamba/diflufenzopyr 70 WG 200 G A/HA POST A 15 b 4.9 bcd 78.7 bcd Agral 90 SO 0.250 % V/V POST A UAN 28 % SO 1.250 % V/V POST A 6 dicamba/atrazine 401 F 1800 G A/HA POST A 17 ab 6.9 a 109.9 a 7 2,4-D/atrazine 390 F 1404 G A/HA POST A 16 ab 5.6 abc 88.7 abc 8 bromoxynil 280 EC 280 G A/HA POST A 16 ab 5.9 abc 94.2 abc atrazine 480 SC 1500 G A/HA POST A 9 prosulfuron 75 WG 10 G A/HA POST A 16 ab 6.3 ab 101.0 ab dicamba 480 SL 140 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 10 primisulfuron/dicamba 47.4 WG 166 G A/HA POST A 16 ab 5.7 abc 90.4 abc Agral 90 SO 0.200 % V/V POST A 11 mesotrione 480 SC 100 G A/HA POST A 17 a 6.0 abc 95.8 abc Agral 90 SO 0.200 % V/V POST A 12 mesotrione 480 SC 100 G A/HA POST A 17 a 5.5 abc 87.5 abc atrazine 480 SC 280 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 13 Weedy check 16 ab 3.9 de 62.1 de LSD (P=.05) 1.5 1.48 23.59 Standard Deviation 1.0 1.04 16.51 CV 6.31 19.3 19.3 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions: There was no injury in corn with the postemergence herbicide treatments evaluated. The postemergence application of atrazine, dicamba, dicamba/diflufenzopyr, dicamba/atrazine, 2,4-D/atrazine, bromoxynil plus atrazine, prosulfuron plus dicamba and mesotrione plus atrazine provided excellent control of volunteer adzuki beans in corn. The application of primisulfuron/dicamba and mesotrione provided good control of volunteer adzuki beans in corn. Corn yields reflected the level of weed control.
163
VOLUNTEER ADZUKI BEAN CONTROL IN CORN WITH POSTEMERGENCE HERBICIDES II TODD COWAN, PETER SIKKEMA Experiment ID: PWC05C1B CROP: ZEAMX, CORN, FIELD (PIONEER 37J99 (CLRFLD)). Planted: May-09-05, 74000 S/HA, 5.5 CM Deep, 75 CM Row Width. Planting Method: PRECISION PLANTER. Emerged On: May-24-05. FIELD Site. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 44 M. Expt. Location: HRS - Range S14. Site Description: Soil Texture: MEDIUM. %OM: 5.3 %Sand: 38.6 %Silt: 37.1 %Clay: 24.3 pH: 7.6 CEC: 35. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A Date : Jun-07-05 Crop 1 ZEAMX 4 LF Time of Day: 7:15 AM Height : 24.1 CM Method : CO2 SPRAY Timing : POST Weed 1 PHSAN UNI Placement : FOLIAR Stg.Scale: 6.2 CM Air Temp. : 19.1 C Density : 81.8 M2 % Humidity : 80 Wind Speed : 2.9 KM/H Dew Present: Y Soil Moist.: SB-M,SF-M Cloud Cover: 10% Equipment : CO2 SPRAY Pressure : 241 KPA Nozzle Type: FLAT FAN Nozzle Size: 8002 VS Noz.Spacing: 50 CM Boom Length: 2 M Boom Height: 50 CM Carrier : WATER Appl.Volume: 200 L/HA Propellant : CO2 Weed Code PHSAN PHSAN PHSAN PHSAN Crop Code ZEAMX ZEAMX ZEAMX ZEAMX ZEAMX ZEAMX ZEAMX Rating Data Type INJURY INJURY INJURY CONTROL CONTROL DRY WT DENSITY Rating Unit % % % % % G/M2 #/M2 Rating Date Jun-14-05 Jun-20-05 Jul-04-05 Jul-04-05 Aug-02-05 Aug-16-05 Aug-16-05 Crop Stage 7 LEAF 9 LEAF 10 LEAF 10 LEAF 14 LEAF 14 LEAF 14 LEAF Crop Stage Scale 56.4 CM 68.5 CM 94.3 CM 94.3 CM 196.8 CM 195 CM 195 CM Weed Stage 4 TRI 9 TRI 5 TRI 5 TRI Weed Density, Unit 54.3M2 56.8M2 48 M2 48 M2 Trt-Eval Interval 7-DAT 14-DAT 28-DAT 28-DAT 56-DAT 70-DAT 70-DAT Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 7 1 Weedy check 0 b 0 a 0 a 0 f 0 h 165.64 a 48 a 2 Weed free check 0 b 0 a 0 a 100 a 100 a 0.00 b 0 b 3 atrazine 480 SC 1500 G A/HA POST A 0 b 0 a 0 a 85 cde 84 e fg 10.75 b 8 b COC SO 1.00 % V/V POST A 4 dicamba 480 SL 600 G A/HA POST A 0 b 0 a 0 a 91 bc 93 bc 1.96 b 2 b 5 dicamba/diflufenzopyr 70 WG 200 G A/HA POST A 0 b 0 a 0 a 84 de 88 cde 4.66 b 3 b Agral 90 SO 0.250 % V/V POST A UAN 28 % SO 1.250 % V/V POST A 6 dicamba/atrazine 401 F 1800 G A/HA POST A 0 b 0 a 0 a 95 ab 95 ab 1.87 b 1 b 7 2,4-D/atrazine 390 F 1404 G A/HA POST A 0 b 0 a 0 a 80 e 78 g 9.94 b 7 b 8 bromoxynil 280 EC 280 G A/HA POST A 3 a 0 a 0 a 83 de 80 f g 5.23 b 6 b atrazine 480 SC 1500 G A/HA POST A 9 prosulfuron 75 WG 10 G A/HA POST A 0 b 0 a 0 a 88 cd 91 bcd 4.06 b 6 b dicamba 480 SL 140 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 10 primisulfuron/dicamba 47.4 WG 166 G A/HA POST A 0 b 0 a 0 a 84 de 85 def 13.10 b 6 b Agral 90 SO 0.200 % V/V POST A 11 mesotrione 480 SC 100 G A/HA POST A 0 b 0 a 0 a 79 e 80 f g 17.23 b 12 b Agral 90 SO 0.200 % V/V POST A 12 mesotrione 480 SC 100 G A/HA POST A 0 b 0 a 0 a 84 de 84 e fg 8.84 b 6 b atrazine 480 SC 280 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 13 Weedy check 0 b 0 a 0 a 0 f 0 h 181.46 a 41 a LSD (P=.05) 0.9 0.0 0.0 6.4 7.0 55.553 14.0 Standard Deviation 0.6 0.0 0.0 4.5 4.9 38.874 9.8 CV 290.72 0.0 0.0 6.14 6.66 118.98 88.46 Means followed by same letter do not significantly differ (P=.05, LSD) Column 1 Footnote: JUN 14 - INJURY SEEN AS NECROSIS
164
VOLUNTEER ADZUKI BEAN CONTROL IN CORN WITH POSTEMERGENCE HERBICIDES II TODD COWAN, PETER SIKKEMA Experiment ID: PWC05C1B Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type MOICON YIELD YIELD Rating Unit % T/HA BU/AC Rating Date Oct-11-05 Oct-11-05 Oct-11-05 Trt-Eval Interval 126 DAT 126 DAT 126 DAT Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 8 10 11 1 Weedy check 21.4 a 8.028 e 127.90 e 2 Weed free check 20.7 ab 12.459 a 198.50 a 3 atrazine 480 SC 1500 G A/HA POST A 20.5 ab 12.258 ab 195.29 ab COC SO 1.00 % V/V POST A 4 dicamba 480 SL 600 G A/HA POST A 20.5 ab 11.065 cd 176.28 cd 5 dicamba/diflufenzopyr 70 WG 200 G A/HA POST A 21.0 ab 11.345 bcd 180.74 bcd Agral 90 SO 0.250 % V/V POST A UAN 28 % SO 1.250 % V/V POST A 6 dicamba/atrazine 401 F 1800 G A/HA POST A 20.8 ab 11.549 a-d 184.00 a-d 7 2,4-D/atrazine 390 F 1404 G A/HA POST A 20.6 ab 11.456 a-d 182.52 a-d 8 bromoxynil 280 EC 280 G A/HA POST A 20.9 ab 11.210 cd 178.59 cd atrazine 480 SC 1500 G A/HA POST A 9 prosulfuron 75 WG 10 G A/HA POST A 20.2 b 10.737 d 171.06 d dicamba 480 SL 140 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 10 primisulfuron/dicamba 47.4 WG 166 G A/HA POST A 20.5 ab 11.253 bcd 179.28 bcd Agral 90 SO 0.200 % V/V POST A 11 mesotrione 480 SC 100 G A/HA POST A 20.6 ab 11.164 cd 177.85 cd Agral 90 SO 0.200 % V/V POST A 12 mesotrione 480 SC 100 G A/HA POST A 20.6 ab 11.834 abc 188.53 abc atrazine 480 SC 280 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 13 Weedy check 20.8 ab 8.961 e 142.77 e LSD (P=.05) 1.18 1.0232 16.300 Standard Deviation 0.83 0.7160 11.406 CV 3.99 6.49 6.49 Means followed by same letter do not significantly differ (P=.05, LSD) CONCLUSIONS: There was no commercially significant injury in corn with the postemergence herbicide treatments evaluated. The postemergence application of dicamba, dicamba/atrazine and prosulfuron plus dicamba provided excellent control of volunteer adzuki beans in corn. The application of atrazine, dicamba/diflufenzopyr, bromoxynil plus atrazine, primisulfuron/dicamba, mesotrione and mesotrione plus atrazine provided good control while 2,4-D/atrazine provided only fair control of volunteer adzuki beans in corn.
165
WIRESTEM MUHLY CONTROL IN CORN CHRIS KRAMER, PETER SIKKEMA EXPERIMENT ID: PWC05C2B CROP: ZEAMX, CORN, FIELD (37R70). Planted: May-05-05, 79040 S/H, 4 CM Deep, 76 CM Row Width. Planting Method: SEEDED. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 8 M. Expt. Location: Andy Fletcher. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A Date : Jun-07-05 Crop 1 ZEAMX 5-6 LF Time of Day: 2:30 PM Height : Method : SPRAY Timing : POSPOS Weed 1 MUHFR 1-8 TILL Placement : BROFOL Stg.Scale: 4-25 CM Air Temp. : 35.3 C Density : 33 /M2 % Humidity : 25 Wind Speed : Dew Present: N Soil Moist.: NORMAL Cloud Cover: 35% Equipment : C02 Backp Pressure : 207 kPa Nozzle Type: Low Drift Nozzle Size: 12002 Noz.Spacing: 50 CM Boom Length: 2 M Boom Height: 50 CM Carrier : WATER Appl.Volume: 200 L/ha Propellant : CO2 Weed Code MUHFR MUHFR MUHFR MUHFR Crop Code ZEAMX ZEAMX Rating Data Type INJURY INJURY CONTROL CONTROL DENSITY BIOMASS Rating Unit % % % % #/M2 G/M2 Rating Date Jun-15-05 Jul-05-05 Jul-05-05 Aug-02-05 Aug-02-05 Aug-02-05 Crop Stage 5-6 LF 8-9 LF Crop Stage Scale 41-60 CM 108-137 Weed Stage 3-20+ LF 9-20+ LF Weed Density, Unit 20 /M2 14.5/M2 Trt-Eval Interval 8 DA-A 28 DA-A 28 DA-A 56 DA-A 56 DA-A 56 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 1 Weedy check 0 c 0 a 0 c 0 c 10 a 75 a dicamba 480 SL 141 G A/HA POST A 2 Weed free check 0 c 0 a 100 a 100 a 0 b 0 b dicamba 480 SL 141 G A/HA POST A 3 rimsulfuron 25 DF 15.0 G A/HA POST A 2 a 0 a 0 c 0 c 14 a 83 a dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 4 nicosulfuron 75 DF 25 G A/HA POST A 1 b 0 a 0 c 0 c 9 ab 34 ab dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 5 nicosulfuron/rimsulfuron 75 DF 25 G A/HA POST A 2 ab 0 a 0 c 1 c 10 a 43 ab dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 6 foramsulfuron 45 SC 70 G A/HA POST A 1 ab 0 a 69 b 93 b 6 ab 2 b dicamba 480 SL 141 G A/HA POST A UAN 28 % SO 2.500 L/HA POST A 7 primisulfuron/dicamba 47.4 WG 166 G A/HA POST A 1 ab 0 a 0 c 0 c 12 a 86 a Agral 90 SO 0.200 % V/V POST A 8 Weedy check 0 c 0 a 0 c 0 c 8 ab 76 a dicamba 480 SL 141 G A/HA POST A LSD (P=.05) 0.7 0.0 1.3 3.5 9.6 71.4 Standard Deviation 0.5 0.0 0.9 2.4 6.5 48.5 CV 54.29 0.0 4.19 9.8 77.7 97.36 Means followed by same letter do not significantly differ (P=.05, LSD)
166
WIRESTEM MUHLY CONTROL IN CORN CHRIS KRAMER, PETER SIKKEMA EXPERIMENT ID: PWC05C2B Weed Code Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type HRVST-MSTR YIELD YIELD Rating Unit % T/HA BU/AC Rating Date Sep-27-05 Sep-27-05 Sep-27-05 Trt-Eval Interval 112 DA-A 112 DA-A 112 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 8 9 10 1 Weedy check 27 ab 9.3 a 148.8 a dicamba 480 SL 141 G A/HA POST A 2 Weed free check 25 b 9.7 a 154.6 a dicamba 480 SL 141 G A/HA POST A 3 rimsulf uron 25 DF 15.0 G A/HA POST A 26 ab 9.1 a 145.6 a dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 4 nicosulfuron 75 DF 25 G A/HA POST A 26 ab 9.7 a 154.7 a dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 5 nicosulfuron/rimsulfuron 75 DF 25 G A/HA POST A 27 a 9.6 a 152.6 a dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 6 foramsulfuron 45 SC 70 G A/HA POST A 26 ab 10.0 a 159.7 a dicamba 480 SL 141 G A/HA POST A UAN 28 % SO 2.500 L/HA POST A 7 primisulfuron/dicamba 47.4 WG 166 G A/HA POST A 26 ab 9.2 a 145.9 a Agral 90 SO 0.200 % V/V POST A 8 Weedy check 26 ab 9.9 a 158.0 a dicamba 480 SL 141 G A/HA POST A LSD (P=.05) 2.2 1.34 21.28 Standard Deviation 1.5 0.91 14.47 CV 5.68 9.49 9.49 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions: There was no commercially significant injury in corn with the postemergence herbicide treatments evaluated. The application of rimsulfuron, nicosulfuron, nicosulfuron/rimsulfuron and primisulfuron resulted in poor control of wirestem muhly. Foramsulfuron provided excellent full-season control of wirestem muhly.
167
WIRESTEM MUHLY CONTROL IN CORN JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05C2C CROP: ZEAMX, CORN, FIELD Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 3. Plot Size: 1.5 M x 30 M. Expt. Location: Vanderveen. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A Date : Jun-06-05 Crop 1 ZEAMX 4-5 LF Time of Day: 8:00 PM Height : Method : SPRAY Timing : POSPOS Weed 1 MUHFR 1-10 TRI Placement : BROFOL Stg.Scale: .5-39 CM Air Temp. : 29 C Density : 947 /M2 % Humidity : 52 Wind Speed : 2.2 KPH Dew Present: N Soil Moist.: NORMAL Cloud Cover: 5% Equipment : C02 Backp Pressure : 207 kPa Nozzle Type: FLAT FAN Nozzle Size: XR8002 Noz.Spacing: 50 CM Boom Length: 1.5 M Boom Height: 48 CM Carrier : WATER Appl.Volume: 200 L/ha Propellant : CO2 Weed Code MUHFR MUHFR MUHFR MUHFR Crop Code ZEAMX ZEAMX Rating Data Type INJURY INJURY CONTROL CONTROL DENSITY BIOMASS Rating Unit % % % % #/M2 G/M2 Rating Date Jun-15-05 Jul-05-05 Jul-05-05 Aug-03-05 Aug-03-05 Aug-03-05 Crop Stage 7-8 LF 7-11 LF Crop Stage Scale 42-81 CM 122-167 Weed Stage 2-20+ LF 3-20+ LF Weed Density, Unit 209 /M2 180 /M2 Trt-Eval Interval 9 DA-A 29 DA-A 29 DA-A 58 DA-A 58 DA-A 58 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 1 Weedy check 0 b 0 b 0 d 0 e 226 a 512 ab dicamba 480 SL 141 G A/HA POST A 2 Weed free check 0 b 0 b 100 a 100 a 91 a 206 cd dicamba 480 SL 141 G A/HA POST A 3 rimsulfuron 25 DF 15.0 G A/HA POST A 2 a 1 a 2 d 0 e 195 a 499 abc dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 4 nicosulfuron 75 DF 25 G A/HA POST A 2 a 1 a 17 c 43 c 75 a 135 d dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 5 nicosulfuron/rimsulfuron 75 DF 25 G A/HA POST A 2 a 0 ab 5 d 10 d 69 a 263 bcd dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 6 foramsulfuron 45 SC 70 G A/HA POST A 1 ab 1 a 47 b 80 b 87 a 198 cd dicamba 480 SL 141 G A/HA POST A UAN 28 % SO 2.500 L/HA POST A 7 primisulfuron/dicamba 47.4 WG 166 G A/HA POST A 2 a 1 a 5 d 0 e 171 a 641 a Agral 90 SO 0.200 % V/V POST A 8 Weedy check 0 b 0 b 0 d 0 e 138 a 451 abc dicamba 480 SL 141 G A/HA POST A LSD (P=.05) 1.5 0.7 6.2 8.7 187.7 303.5 Standard Deviation 0.8 0.4 3.5 5.0 107.2 173.3 CV 74.81 71.22 16.16 17.1 81.54 47.73 Means followed by same letter do not significantly differ (P=.05, LSD)
168
WIRESTEM MUHLY CONTROL IN CORN JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05C2C Weed Code Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type HRVST-MSTR YIELD YIELD Rating Unit % T/HA BU/AC Rating Date Oct-07-05 Oct-07-05 Oct-07-05 Trt-Eval Interval 123 DA-A 123 DA-A 123 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 8 9 10 1 Weedy check 19 b 6.1 b 96.5 b dicamba 480 SL 141 G A/HA POST A 2 Weed free check 24 a 8.2 ab 131.2 ab dicamba 480 SL 141 G A/HA POST A 3 rimsulfuron 25 DF 15.0 G A/HA POST A 22 ab 6.1 b 96.8 b dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 4 nicosulfuron 75 DF 25 G A/HA POST A 22 ab 11.2 a 179.0 a dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 5 nicosulfuron/rimsulfuron 75 DF 25 G A/HA POST A 23 a 9.0 ab 143.1 ab dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 6 foramsulfuron 45 SC 70 G A/HA POST A 23 a 8.5 ab 135.0 ab dicamba 480 SL 141 G A/HA POST A UAN 28 % SO 2.500 L/HA POST A 7 primisulfuron/dicamba 47.4 WG 166 G A/HA POST A 21 ab 4.8 b 76.1 b Agral 90 SO 0.200 % V/V POST A 8 Weedy check 22 ab 5.0 b 78.9 b dicamba 480 SL 141 G A/HA POST A LSD (P=.05) 2.8 4.52 71.99 Standard Deviation 1.6 2.58 41.10 CV 7.3 35.11 35.11 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions: There was no commercially significant injury in corn with the postemergence herbicide treatments evaluated. The application of rimsulfuron, nicosulfuron, nicosulfuron/rimsulfuron and primisulfuron resulted in poor control of wirestem muhly. Foramsulfuron provided good full-season control of wirestem muhly.
169
WIRESTEM MUHLY CONTROL IN CORN JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05C2D CROP: ZEAMX Planted: Apr-19-05 Emerged On: May-12-05. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 40 M. Expt. Location: Anderson. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A Date : Jun-08-05 Crop 1 ZEAMX 6-8 LF Time of Day: 8:00 PM Height : Method : SPRAY Timing : POSPOS Weed 1 MUHFR 2-20+ TRI Placement : BROFOL Stg.Scale: 2-45 CM Air Temp. : 29.9 C Density : 36.5 /M2 % Humidity : 50 Wind Speed : 1.9 KPH Dew Present: N Soil Moist.: NORMAL Cloud Cover: 60% Equipment : C02 Backp Pressure : 207 kPa Nozzle Type: Low Drift Nozzle Size: 12002 Noz.Spacing: 50 CM Boom Length: 2 M Boom Height: 50 CM Carrier : WATER Appl.Volume: 200 L/ha Propellant : CO2 Weed Code MUHFR MUHFR MUHFR MUHFR Crop Code ZEAMX ZEAMX Rating Data Type INJURY INJURY CONTROL CONTROL DENSITY BIOMASS Rating Unit % % % % #/M2 G/M2 Rating Date Jun-15-05 Jul-06-05 Jul-06-05 Aug-01-05 Aug-01-05 Aug-01-05 Crop Stage 7-9 LF 8-11 LF Crop Stage Scale 56-103CM 149-201 Weed Stage 8-106 CM 7-20+ LF Weed Density, Unit 36 /M2 24 /M2 Trt-Eval Interval 7 DA-A 28 DA-A 28 DA-A 54 DA-A 54 DA-A 54 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 1 Weedy check 0 c 0 a 0 d 0 c 21 a 192 a dicamba 480 SL 141 G A/HA POST A 2 Weed free check 0 c 0 a 100 a 100 a 0 c 0 c dicamba 480 SL 141 G A/HA POST A 3 rimsulfuron 25 DF 15.0 G A/HA POST A 3 a 0 a 3 d 0 c 24 a 98 abc dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 4 nicosulfuron 75 DF 25 G A/HA POST A 1 bc 0 a 20 c 9 c 13 abc 16 bc dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 5 nicosulfuron/rimsulfuron 75 DF 25 G A/HA POST A 3 a 0 a 5 d 0 c 20 ab 59 bc dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 6 foramsulfuron 45 SC 70 G A/HA POST A 2 ab 0 a 75 b 88 b 7 bc 5 c dicamba 480 SL 141 G A/HA POST A UAN 28 % SO 2.500 L/HA POST A 7 primisulfuron/dicamba 47.4 WG 166 G A/HA POST A 1 c 0 a 0 d 4 c 25 a 107 ab Agral 90 SO 0.200 % V/V POST A 8 Weedy check 0 c 0 a 0 d 0 c 25 a 173 a dicamba 480 SL 141 G A/HA POST A LSD (P=.05) 1.1 0.0 13.3 12.2 13.1 97.8 Standard Deviation 0.7 0.0 9.1 8.3 8.9 66.5 CV 65.06 0.0 35.77 33.01 53.13 81.87 Means followed by same letter do not significantly differ (P=.05, LSD)
170
WIRESTEM MUHLY CONTROL IN CORN JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05C2D Crop Code ZEAMX ZEAMX ZEAMX Rating Data Type HRVST-MSTR YIELD YIELD Rating Unit % T/HA BU/AC Rating Date Oct-08-05 Oct-08-05 Oct-08-05 Trt-Eval Interval 122 DA-A 122 DA-A 122 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 8 9 10 1 Weedy check 20 a 10.2 ab 182.9 abc dicamba 480 SL 141 G A/HA POST A 2 Weed free check 22 a 11.4 a 205.5 a dicamba 480 SL 141 G A/HA POST A 3 rimsulfuron 25 DF 15.0 G A/HA POST A 21 a 11.2 a 199.9 ab dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 4 nicosulfuron 75 DF 25 G A/HA POST A 21 a 10.1 ab 182.7 abc dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 5 nicosulfuron/rimsulfuron 75 DF 25 G A/HA POST A 20 a 10.8 a 190.7 ab dicamba 480 SL 141 G A/HA POST A Agral 90 SO 0.200 % V/V POST A 6 foramsulfuron 45 SC 70 G A/HA POST A 21 a 10.6 a 190.8 ab dicamba 480 SL 141 G A/HA POST A UAN 28 % SO 2.500 L/HA POST A 7 primisulfuron/dicamba 47.4 WG 166 G A/HA POST A 20 a 9.6 ab 173.1 bc Agral 90 SO 0.200 % V/V POST A 8 Weedy check 20 a 8.7 b 158.9 c dicamba 480 SL 141 G A/HA POST A LSD (P=.05) 1.8 1.85 31.64 Standard Deviation 1.2 1.26 21.51 CV 6.04 12.19 11.59 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions: There was no commercially significant injury in corn with the postemergence herbicide treatments evaluated. The application of rimsulfuron, nicosulfuron/rimsulfuron and primisulfuron resulted in poor control of wi restem muhly. Nicosulfuron provided fair control and foramsulfuron provided excellent full-season control of wirestem muhly.
171
VETCH CONTROL IN CORN WITH POSTEMERGENCE HERBICIDES JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05C6A CROP: ZEAMX, CORN, FIELD Planted: Apr-22-05 Emerged On: May-20-05. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 8 M. Expt. Location: Wayne Maw. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A Application: A Date : Jun-04-05 Crop 1 ZEAMX 2-5 LF Time of Day: 7:00 AM Height : Method : SPRAY Timing : POSPOS Weed 1 VICSA 3-20+ LF Placement : BROFOL Stg.Scale: 1-44 CM Air Temp. : 16.1 C Density : 60 /M2 % Humidity : 95 Wind Speed : 4 KPH Dew Present: Y Soil Moist.: NORMAL Cloud Cover: 20% Equipment : C02 Backp Pressure : 207 kPa Nozzle Type: Low Drift Nozzle Size: 12002 Noz.Spacing: 50 CM Boom Length: 2 M Boom Height: 50 CM Carrier : WATER Appl.Volume: 200 L/ha Propellant : CO2
172
VETCH CONTROL IN CORN WITH POSTEMERGENCE HERBICIDES JOSH VYN, PETER SIKKEMA EXPERIMENT ID: PWC05C6A Weed Code VICSA VICSA Crop Code ZEAMX ZEAMX Rating Data Type INJURY INJURY CONTROL CONTROL Rating Unit % % % % Rating Date Jun-11-05 Jul-02-05 Jul-02-05 Jul-30-05 Crop Stage 5-9 LF 8-11 LF 12-14 LF Crop Stage Scale 18-60 CM 90-121 C 195-235 Weed Stage 11-20+ L 12-20+LF Weed Density, Unit 101 /M2 67.5/M2 Trt-Eval Interval 7 DA-A 28 DA-A 28 DA-A 56 DA-A Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 1 Untreated Check 0 b 0 a 0 f 0 f 2 atrazine 90 WG 1500 G A/HA post A 0 b 0 a 40 e 30 e COC SO 1.00 % V/V post A 3 dicamba 480 SL 600 G A/HA post A 0 b 0 a 85 abc 74 a-d 4 dicamba/diflufenzopyr 70 WG 200 G A/HA post A 0 b 0 a 78 bc 74 a-d Agral 90 SO 0.250 % V/V post A UAN 28 % SO 1.250 % V/V post A 5 dicamba/atrazine 401 F 1800 G A/HA post A 1 a 0 a 85 abc 69 a-d 6 2,4-D/atrazine 390 F 1404 G A/HA post A 0 b 0 a 92 ab 91 ab 7 bromoxynil 280 EC 280 G A/HA post A 0 b 0 a 58 d 72 a-d atrazine 90 WG 1500 G A/HA post A 8 prosulfuron 75 WG 10 G A/HA post A 0 b 0 a 78 bc 76 a-d dicamba 480 SL 140 G A/HA post A Agral 90 SO 0.200 % V/V post A 9 primisulfuron/dicamba 47.4 WG 166 G A/HA post A 0 b 0 a 74 c 48 de Agral 90 SO 0.200 % V/V post A 10 mesotrione 480 SC 100 G A/HA post A 0 b 0 a 83 abc 63 bcd Agral 90 SO 0.200 % V/V post A 11 rimsulfuron 25 DF 12.5 G A/HA post A 0 b 0 a 93 a 90 ab s-metolachlor 915 EC 573 G A/HA post A dicamba 480 SL 300 G A/HA post A Agral 90 SO 0.200 % V/V post A 12 nicosulfuron/rimsulfuron 75 DF 25 G A/HA post A 0 b 0 a 82 abc 72 a-d dicamba/diflufenzopyr 70 WG 200 G A/HA post A Agral 90 SO 0.250 % V/V post A UAN 28 % SO 1.250 % V/V post A 13 foramsulfuron 70 WG 70 G A/HA post A 0 b 0 a 95 a 91 a dicamba/diflufenzopyr 70 WG 200 G A/HA post A MSO SO 1.750 L/HA post A UAN 28 % SO 2.500 L/HA post A 14 nicosulfuron 75 DF 25 G A/HA post A 0 b 0 a 85 abc 79 abc dicamba/diflufenzopyr 70 WG 200 G A/HA post A Agral 90 SO 0.250 % V/V post A UAN 28 % SO 1.250 % V/V post A 15 nicosulfuron 75 DF 25 G A/HA post A 1 a 0 a 78 bc 76 a-d prosulfuron 75 WG 10 G A/HA post A dicamba 480 SL 140 G A/HA post A Agral 90 SO 0.200 % V/V post A 16 nicosulfuron 75 DF 25 G A/HA post A 0 ab 0 a 82 abc 71 a-d mesotrione 480 SC 100 G A/HA post A atrazine 480 SC 280 G A/HA post A Agral 90 SO 0.200 % V/V post A 17 nicosulfuron 75 DF 18.75 G A/HA post A 0 b 0 a 78 bc 60 cd primisulfuron/dicamba 47.4 WG 166 G A/HA post A Agral 90 SO 0.200 % V/V post A LSD (P=.05) 0.4 0.0 14.6 28.2 Standard Deviation 0.3 0.0 10.2 19.8 CV 398.33 0.0 13.72 29.59 Means followed by same letter do not significantly differ (P=.05, LSD) Conclusions: This is the first experiment that we conducted on vetch control in corn. The vetch population was variable and therefore these results will have to be confirmed in fut ure studies. There was no injury in corn with the postemergence herbicides evaluated. The postemergence application of 2,4-D/atrazine, rimsulfuron + s-metolachlor + dicamba and foramsulfuron + dicamba/diflufenzopyr provided excellent full season control of vetch. The postemergence application of dicamba, dicamba/diflufenzopyr, dicamba/atrazine, bromoxynil + atrazine, prosulfuron + dicamba, mesotrione, nicosulfuron/rimsulfuron + dicamba/diflufenzopyr, nicosulfuron + dicamba/diflufenzopyr, nicosulfuron + prosulfuron + dicamba, nicosulfuron + mesotrione + atrazine and nicosulfuron + primisulfuron/dicamba provided fair control of vetch. The postemergence application of atrazine and primisulfuron/dicamba provided poor control of vetch.
173
FIELD BINDWEED CONTROL IN CORN WITH POSTEMERGENCE HERBICIDES I PETER SIKKEMA, TODD COWAN Experiment ID: PWC05C7A CROP: ZEAMX, CORN, FIELD (DKC 39-48 RR). Planted: May-09-05, 74000 S/H, 5.5 CM Deep, 75 CM Row Width. Planting Method: PRECISION PLANTER. Emerged On: May-24-05. FIELD Site. Expt. Design: RANDOMIZED COMPLETE BLOCK. Reps: 4. Plot Size: 2 M x 44 M. Expt. Location: HRS - Range S12. Site Description: Soil Texture: MEDIUM. %OM: 4.2 %Sand: 28 %Silt: 38 %Clay: 34 pH: 8 CEC: 33. APPLICATION DESCRIPTION STAGE AT APPLICATION Application: A B Application: A B Date : Jun-08-05 Jun-14-05 Crop 1 ZEAMX 4 LF 7 LF Time of Day: 8:55 AM 7:55 AM Height : 23.3 CM 47.5 CM Method : CO2 SPRAY CO2 SPRAY Timing : POST 1 POST 2 Weed 1 TAROF 5 LEAF 23 LEAF Placement : FOLIAR FOLIAR Stg.Scale: 8.4 CM 18.5 CM Air Temp. : 28.6 C 20.3 C Density : 17.3 M2 6 M2 % Humidity : 48 89 Weed 2 CONAR 13 LEAF 13 LEAF Wind Speed : 1.4 KM/H 4.4 KM/H Stg.Scale: 14 CM 20.3 CM Dew Present: N Y Density : 16.3 M2 18.8 M2 Soil Moist.: SB-D,SF-D SB-M,SF-M Cloud Cover: 40% 100% Equipment : C02 SPRAY C02 SPRAY Pressure : 241 KPA 241 KPA Nozzle Type: FLAT FAN FLAT FAN Nozzle Size: 8002 VS 8002 VS Noz.Spacing: 50 CM 50 CM Boom Length: 2 M 2 M Boom Height: 50 CM 50 CM Carrier : WATER WATER Appl.Volume: 200 L/HA 200 L/HA Propellant : CO2 CO2 Weed Code TAROF CONAR TAROF CONAR Crop Code ZEAMX ZEAMX ZEAMX ZEAMX ZEAMX ZEAMX ZEAMX Rating Data Type INJURY INJURY CONTROL CONTROL CONTROL CONTROL MOICON Rating Unit % % % % % % % Rating Date Jun-15-05 Jul-05-05 Jul-05-05 Jul-05-05 Aug-02-05 Aug-02-05 Oct-12-05 Crop Stage 7 LEAF 8 LEAF 8 LEAF 8 LEAF 13 LEAF 13 LEAF Crop Stage Scale 46.3 CM 76 CM 76 CM 76 CM 174.8 CM 174.8 CM Weed Stage 18 LEAF 20 LEAF 17 LEAF 19 LEAF Weed Density, Unit 9.5 M2 23.5M2 9.3 M2 7.8 M2 Footnote Number 1 Trt-Eval Interval 7-DAT 28-DAT 28-DAT 28-DAT 56-DAT 56-DAT 120 DAT Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 1 2 3 4 5 6 7 1 Untreated Check 0 b 0 a 0 e 0 e 0 d 0 e 23.7 a 2 glufosinate 200 SL 500 G A/HA post 1 A 0 b 0 a 55 bcd 30 d 0 d 0 e 22.7 ab 3 glufosinate 200 SL 500 G A/HA post 1 A 0 b 0 a 46 d 70 abc 10 d 58 a-d 22.4 ab glufosinate 200 SL 500 G A/HA post 2 B 4 glyphosate (Weathermax) 540 SL 900 G A/HA post 1 A 0 b 0 a 53 cd 76 ab 50 bc 84 a 19.6 b 5 glyphosate (Weathermax) 540 SL 1800 G A/HA post 1 A 0 b 0 a 60 a-d 83 a 69 abc 84 a 22.2 ab 6 glyphosate (Weathermax) 540 SL 900 G A/HA post 1 A 0 b 0 a 78 a 75 ab 76 abc 78 abc 20.0 b glyphosate (Weathermax) 540 SL 900 G A/HA post 2 B 7 nicosulfuron/rimsulfuron 75 DF 25 G A/HA post 1 A 0 b 0 a 71 abc 60 bc 55 abc 48 d 20.0 b mesotrione 480 SC 100 G A/HA post 1 A atrazine 480 SC 280 G A/HA post 1 A Agral 90 SO 0.200 % V/V post 1 A 8 nicosulfuron/rimsulfuron 75 DF 25 G A/HA post 1 A 0 b 0 a 63 a-d 73 abc 70 abc 53 bcd 23.6 a dicamba/diflufenzopyr 70 WG 200 G A/HA post 1 A Agral 90 SO 0.250 % V/V post 1 A UAN 28 % SO 1.250 % V/V post 1 A 9 nicosulfuron/rimsulfuron 75 DF 25 G A/HA post 1 A 0 b 0 a 63 a-d 71 abc 60 abc 51 cd 19.7 b prosulfuron 75 WG 10 G A/HA post 1 A dicamba 480 SL 140 G A/HA post 1 A Agral 90 SO 0.200 % V/V post 1 A 10 foramsulfuron 45 SC 70 G A/HA post 1 A 0 b 0 a 76 ab 75 ab 60 abc 69 a-d 20.1 b mesotrione 480 SC 100 G A/HA post 1 A atrazine 480 SC 280 G A/HA post 1 A UAN 28 % SO 2.500 L/HA post 1 A 11 foramsulfuron 45 SC 70 G A/HA post 1 A 2 a 0 a 76 ab 86 a 85 a 81 ab 21.4 ab dicamba/diflufenzopyr 70 WG 200 G A/HA post 1 A UAN 28 % SO 2.500 L/HA post 1 A 12 foramsulfuron 45 SC 70 G A/HA post 1 A 0 b 0 a 75 ab 84 a 83 ab 84 a 19.4 b prosulfuron 75 WG 10 G A/HA post 1 A dicamba 480 SL 140 G A/HA post 1 A UAN 28 % SO 2.500 L/HA post 1 A 13 nicosulfuron 75 DF 25 G A/HA post 1 A 0 b 0 a 63 a-d 58 c 63 abc 70 a-d 20.5 ab prosulfuron 75 WG 10 G A/HA post 1 A dicamba 480 SL 140 G A/HA post 1 A Agral 90 SO 0.200 % V/V post 1 A 14 nicosulfuron 75 DF 18.75 G A/HA post 1 A 0 b 0 a 65 a-d 73 abc 46 c 56 a-d 20.7 ab primisulfuron/dicamba 47.4 WG 166 G A/HA post 1 A Agral 90 SO 0.200 % V/V post 1 A LSD (P=.05) 0.9 0.0 21.7 17.2 34.6 28.8 3.34 Standard Deviation 0.6 0.0 15.2 12.1 24.2 20.1 2.34 CV 505.21 0.0 25.24 18.5 46.65 34.65 11.06 Means followed by same letter do not significantly differ (P=.05, LSD) Column 1 Footnote: JUN-15- INJURY AS REDUCED GROWTH
174
FIELD BINDWEED CONTROL IN CORN WITH POSTEMERGENCE HERBICIDES I PETER SIKKEMA, TODD COWAN Experiment ID: PWC05C7A Crop Code ZEAMX ZEAMX Rating Data Type YIELD YIELD Rating Unit T/HA BU/AC Rating Date Oct-12-05 Oct-12-05 Trt-Eval Interval 120 DAT 120 DAT Trt Treatment Form Form Rate Grow Appl No. Name Conc Type Rate Unit Stg Code 9 10 1 Untreated Check 6.332 b 100.89 b 2 glufosinate 200 SL 500 G A/HA post 1 A 10.948 a 174.42 a 3 glufosinate 200 SL 500 G A/HA post 1 A 12.093 a 192.66 a glufosinate 200 SL 500 G A/HA post 2 B 4 glyphosate (Weathermax) 540 SL 900 G A/HA post 1 A 11.564 a 184.23 a 5 glyphosate (Weathermax) 540 SL 1800 G A/HA post 1 A 11.882 a 189.30 a 6 glyphosate (Weathermax) 540 SL 900 G A/HA post 1 A 11.673 a 185.96 a glyphosate (Weathermax) 540 SL 900 G A/HA post 2 B 7 nicosulfuron/rimsulfuron 75 DF 25 G A/HA post 1 A 11.522 a 183.57 a mesotrione 480 SC 100 G A/HA post 1 A atrazine 480 SC 280 G A/HA post 1 A Agral 90 SO 0.200 % V/V post 1 A 8 nicosulfuron/rimsulfuron 75 DF 25 G A/HA post 1 A 11.974 a 190.77 a dicamba/diflufenzopyr 70 WG 200 G A/HA post 1 A Agral 90 SO 0.250 % V/V post 1 A UAN 28 % SO 1.250 % V/V post 1 A 9 nicosulfuron/rimsulfuron 75 DF 25 G A/HA post 1 A 11.214 a 178.66 a prosulfuron 75 WG 10 G A/HA post 1 A dicamba 480 SL 140 G A/HA post 1 A Agral 90 SO 0.200 % V/V post 1 A 10 foramsulfuron 45 SC 70 G A/HA post 1 A 11.625 a 185.21 a mesotrione 480 SC 100 G A/HA post 1 A atrazine 480 SC 280 G A/HA post 1 A UAN 28 % SO 2.500 L/HA post 1 A 11 foramsulfuron 45 SC 70 G A/HA post 1 A 11.817 a 188.26 a dicamba/diflufenzopyr 70 WG 200 G A/HA post 1 A UAN 28 % SO 2.500 L/HA post 1 A 12 foramsulfuron 45 SC 70 G A/HA post 1 A 11.445 a 182.34 a prosulfuron 75 WG 10 G A/HA post 1 A dicamba 480 SL 140 G A/HA post 1 A UAN 28 % SO 2.500 L/HA post 1 A 13 nicosulfuron 75 DF 25 G A/HA post 1 A 10.950 a 174.46 a prosulfuron 75 WG 10 G A/HA post 1 A dicamba 480 SL 140 G A/HA post 1 A Agral 90 SO 0.200 % V/V post 1 A 14 nicosulfuron 75 DF 18.75 G A/HA post 1 A 10.929 a 174.12 a primisulfuron/dicamba 47.4 WG 166 G A/HA post 1 A Agral 90 SO 0.200 % V/V post 1 A LSD (P=.05) 1.3040 20.775 Standard Deviation 0.9125 14.538 CV 8.19 8.19 Means followed by same letter do not significantly differ (P=.05, LSD) CONCLUSIONS: There was no commercially significant visual injury in corn with the postemergence herbicides evaluated. DANDELION. Glufosinate provided poor control of dandelion in corn. Glyphosate provided only marginal control of dandelion in corn. There was a trend to improved control at the high rate and with the sequential application. The tankmixes of Nicosulfuron/rimsulfuron plus either mesotrione plus atrazine, dicamba/diflufenzopyr or prosulfuron plus dicamba provided only poor to fair control of dandelion. The tankmixes of foramsulfuron plus either mesotrione plus atrazine, dicamba/diflufenzopyr or prosulfuron plus dicamba provided fair to good control of dandelion. Nicosulfuron plus prosulfuron plus dicamba provided fair control of dandelion while nicosulfuron plus primisulfuron/dicamba provided poor control. FIELD BINDWEED. A single application of glufosinate provided no control of field bindweed while the sequential application provided 58% control. Glyphosate provided good control of field bindweed. The tankmixes of nicosulfuron/rimsulfuron plus either mesotrione plus atrazine, dicamba/diflufenzopyr or prosulfuron plus dicamba provided poor control of field bindweed. The tankmixes of foramsulfuron plus either mesotrione plus atrazine, dicamba/diflufenzopyr or prosulfuron plus dicamba provided fair to good control of field bindweed. Nicosulfuron plus prosulfuron plus dicamba provided fair control of field bindweed while nicosulfuron plus primisulfuron/dicamba provided poor control.
