Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas,...
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Transcript of Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas,...
![Page 1: Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas, respectively Soilborne Favored by wet or poorly drained.](https://reader035.fdocuments.net/reader035/viewer/2022062423/5697c00d1a28abf838cc96cc/html5/thumbnails/1.jpg)
![Page 2: Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas, respectively Soilborne Favored by wet or poorly drained.](https://reader035.fdocuments.net/reader035/viewer/2022062423/5697c00d1a28abf838cc96cc/html5/thumbnails/2.jpg)
Diseases of Beans and Peas
![Page 3: Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas, respectively Soilborne Favored by wet or poorly drained.](https://reader035.fdocuments.net/reader035/viewer/2022062423/5697c00d1a28abf838cc96cc/html5/thumbnails/3.jpg)
Root RotsFusarium solani
f. sp. phaseoli
f. sp. pisi
• Beans and peas, respectively
• Soilborne• Favored by wet or poorly
drained soils
• Avoid areas with a history of
disease • Crop rotation• Improve drainage• Use fungicide-treated seed
![Page 4: Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas, respectively Soilborne Favored by wet or poorly drained.](https://reader035.fdocuments.net/reader035/viewer/2022062423/5697c00d1a28abf838cc96cc/html5/thumbnails/4.jpg)
Root RotsRhizoctonia solani
• Beans and peas
• Soilborne• Favored by wet or poorly
drained soils
• Avoid areas with a history of
disease • Crop rotation• Improve drainage• Use fungicide-treated seed
![Page 5: Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas, respectively Soilborne Favored by wet or poorly drained.](https://reader035.fdocuments.net/reader035/viewer/2022062423/5697c00d1a28abf838cc96cc/html5/thumbnails/5.jpg)
Web BlightRhizoctonia solani
• Beans
• Soilborne• Favored by warm
temperatures, rain and
high humidity
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Botrytis Blight (Gray
Mold)Botrytis cinerea
• Beans & English peas
• Soilborne• Windborne spores• Favored by cool (68-77F),
wet conditions
• Improve air circulation• Avoid excessive fertilization• Use fungicides during flowering
![Page 7: Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas, respectively Soilborne Favored by wet or poorly drained.](https://reader035.fdocuments.net/reader035/viewer/2022062423/5697c00d1a28abf838cc96cc/html5/thumbnails/7.jpg)
Southern Blight Sclerotium
rolfsii
• Beans
• Soilborne•Favored by warm, wet
conditions
• Deep plowing to bury
sclerotia• Crop rotation• Resistant varieties
![Page 8: Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas, respectively Soilborne Favored by wet or poorly drained.](https://reader035.fdocuments.net/reader035/viewer/2022062423/5697c00d1a28abf838cc96cc/html5/thumbnails/8.jpg)
White Mold (Watery Soft Rot)
Sclerotinia sclerotiorum
• Beans & English peas
• Soilborne• Windborne spores• Favored by cool (68-77F),
wet conditions
• Improve air circulation• Avoid excessive fertilization• Use fungicides during flowering
![Page 9: Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas, respectively Soilborne Favored by wet or poorly drained.](https://reader035.fdocuments.net/reader035/viewer/2022062423/5697c00d1a28abf838cc96cc/html5/thumbnails/9.jpg)
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AnthracnoseColletotrichum lindemuthianum
Beans and southern peas
Primarily seedborne Can survive on infected
crop residues in soil Splash-dispersed
Resistant varieties Clean seed Fungicides Crop rotation (2 years
between susceptible crops)
![Page 11: Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas, respectively Soilborne Favored by wet or poorly drained.](https://reader035.fdocuments.net/reader035/viewer/2022062423/5697c00d1a28abf838cc96cc/html5/thumbnails/11.jpg)
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Common Bacterial
Blight Xanthomonas campestris pv. phaseoli
• Beans and southern peas
• Seed-borne• Infected crop residue• Splashing water• Favored by warmer
temperatures & high humidity
• Clean seed• Resistant cultivars• Crop rotation• Copper fungicides (?)
![Page 13: Diseases of Beans and Peas Root Rots Fusarium solani f. sp. phaseoli f. sp. pisi Beans and peas, respectively Soilborne Favored by wet or poorly drained.](https://reader035.fdocuments.net/reader035/viewer/2022062423/5697c00d1a28abf838cc96cc/html5/thumbnails/13.jpg)
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Halo Blight Pseudomonas syringae pv. phaseolicola
• Seed-borne• Splashing water• Systemic in the plant• Favored by cool, wet
weather
5363914
5363916
• Clean seed• Resistant varieties• Copper fungicides
Beans
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Bean RustUromyces
appendiculatus
• Beans
• Windborne • Favored by warm,
humid conditions
• Resistant varieties• Avoid excessive N• Sanitation• Fungicides
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Resources
http://lsuagcenter.com/plantdiagnostics
http://www.ipmimages.org/
http://www.ipm.ucdavis.edu/
http://vegetablemdonline.ppath.cornell.edu
http://edis.ifas.ufl.edu/department_plant_pathology
http://laplantpath.wordpress.com
http://www.extension.org/
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Resources
LSU AgCenter Plant Diagnostic Center
LSU AgCenter Soil Testing & Plant Analysis Lab