IPM Integrated Pest Management
description
Transcript of IPM Integrated Pest Management
IPMIntegrated Pest Management
John RoyalsInstructor Turfgrass Management Technology
Central Piedmont Community College
The optimization of pest population management in an economically and ecologically sound manner through the use of multiple tactics compatible in keeping pest damage below the aesthetic level
Definition IPM
•Monitoring
•Cultural
•Regulatory
•Physical
•Chemical
Tactics Used in IPM
Aesthetic Injury Level
Defined as the lowest population density of pest that will cause unacceptable aesthetic changes
Aesthetic injury level can vary depending on the value of the turf area
•Highway right of ways•Home lawns•Sports fields•Golf putting greens
Developing and IPM program
Step 1Identify key pest
•Weeds•Insects•Diseases
Key Weeds in Tall Fescue
•Crabgrass•Bermuda grass•Dallisgrass•Assorted broad leaf weeds
Crabgrass
Bermuda Grass
Dallisgrass
Key Insects in Tall Fescue
•Grubs•Army Worms
Key Diseases in Tall Fescue
•Brown Patch
Step 2
Define the turfgrass Management Unit- the turf ecosystem
The turfgrass managent unit
•A single lawn•Golf course•Southeastern USA
Size of turfgrass management unit depends on the mobility of the pest and its dispersal potential
Step 3Develop reliable monitoring techniques
Monitoring depends on our ability to accurately identify turf pest and measure the amount of potential loss that can be caused by each
Scouting must be done on a regular bases for weeds, insects, and diseases
Step 4Establish aesthetic thresholds
Thresholds level can vary•By level of maintenance (low, medium, or high)•Turfgrass grown•Type of pest present
You must also consider•Budget restrictions•Availability of water•Fertilizer•Pesticides•And other cultural materials or equipment
Step 5Develop descriptive and predictive models of what pest are most likely to occur, when the are expected to appear or become active, and the amount of damage they can cause
To develop a model for a pest we must know the:•Biology of the pest•Ecology of the pest•Epidemiology of the pest
JAN-FEB: Grub in winter cell.MAR-APR: Grub comes up near surface to feed.MAY: Grub forms cell and prepares to pupate.JUNE: Grub changes to pupa and then to adult, which emerges from ground.JULY: Beetle lays eggs in ground, preferably in grass sod.AUG: Eggs hatch. Young feed on living roots of plants.SEP-OCT: Grubs continue to feed and grow rapidly. Injury to roots of plants is most common at this time.NOV-DEC: Grubs are mostly full grown and go to depths 4 to 8 inches below surface to pass winter in earthen cell
Japanese Beetle
Time Disease Occurs
Brown Patch
Brown Patch Pressure On Tall Fescue
Weed Life Cycles
•Annual•Biannual•Perennial
Step 6Develop an effective and economical turf management strategy
Turf areas need to be uniform to minimize variation in response to the program
•Front yard or back yard•Shaded areas•Wet areas•Different soil types•Etc
Management Tactics
Regulatory
Genetic
•Selection and use of adapted turfgrass species and cultivars with naturally occurring resistance to insects and/or diseases•Introduction of specific genes for resistance into a desirable turfgrass
Cultural
•Sanitation•Proper establishment of turf area•Mowing•Fertilization•Irrigation•Cultivation Practices
Biological
Living organisms that are natural antagonist, parasites, and predators
Examples•Bacillus popilliae (Milky disease)•Endophytes
Physical
•Traps•Surface and subsurface drainage•Control traffic
Chemical
•Herbicides•Fungicides•Insecticides
Summary
IPM : It is a systematic approach to managing pest, utilizing all control and monitoring methods
Summary continuedDeveloping an IPM program•Know your pests•Define the turf area•Be on the lookout (scouting)•Establish damage thresholds•Know when and where your pest are coming to visit•Develop and implement a turf management plan
Questions ?