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An Integrated Pest Management Program for Turfgrass.

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Presentation on theme: "An Integrated Pest Management Program for Turfgrass."— Presentation transcript:

1 An Integrated Pest Management Program for Turfgrass

2 Purpose of IPM 3To reduce dependence on pesticides

3 The Actual Risks Smoking Alcoholic Beverages Motor Vehicles Handguns Electric Power MotorcyclesSwimmingSurgery/X-RaysRailroads/Aviation Large Construction BicyclesHunting Home Appliances Fire Fighting/Police Work Nuclear Power Power Mowers Scholastic Football SkiingVaccinations Food Preservatives PESTICIDES Spray Cans/Aerosol 1001,00010,000100,000 Number of Deaths Per Year

4 An IPM Program Emphasizes 3Adapted varieties 3Cultural practices 3Monitoring pest populations 3Targeting applications 3Detailed records

5 An IPM Program Emphasizes 3Biological control 3Resistant varieties

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9 CulturalPractices

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14 Environmental Conditions 3Temperature 3Wind 3Moisture

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16 BrownpatchBrownpatch 3All grasses 375° - 85° F 3Moist

17 101316192225281471013161922252831 806040200 SeptemberOctober Brownpatch (%)Temperature Brownpatch vs. Temperature

18 October Brownpatch (%)Rainfall (inches) Brownpatch vs. Temperature 706050403020100 135781113151719212325272931

19 Detailed Records

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21 Monitoring Pest Populations

22 Pesticide Application 3Product 3Date of Application 3Rate of Application

23 Chinch Bugs 3Favor lush St. Augustine lawns 3Prefer hot, dry area 3 Suck juices from plants 3Orange nymph does most damage 3When crushed, give pungent odor

24 Chinch bug damage in St. Augustinegrass

25 Life stages of the chinch bug from adult to nymph

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27 White Grub 360 species 3Phyllophaga criteria most common 3Grubs chew on roots 34 - 5 grubs per square foot 3Takes 3 - 4 weeks for eggs to hatch 3Egg laying period of 30 days

28 White Grub (cont.) 33rd instar does most of the damage 3Overwinters in 3rd instar stage 3Control aimed at newly hatched grubs

29 White grubs in bluegrass

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32 Sod webworms in St. Augustine

33 Sod webworm tunnels

34 Sod webworm

35 Sod Webworms 3Bermudagrass, Zoysiagrass & St. Augustinegrass

36 HelminthosporiumHelminthosporium 3Bermudagrass 370 - 80º F

37 Helminthosporium in bermudagrass

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39 Dollar Spot 3Bermudagrass 360 - 80º F 3Wet foliage

40 Dollar spot in bermuda

41 Targeting Applications

42 ASONDJFMAMJJASO Months 1086420 Winter Broadleaf Weeds Summer Broadleaf Weeds Poa Annua Crabgrass Weed Population Weed Control Programs

43 Biological Controls

44 Fall army worm

45 Fall Armyworms 3Favored by cool, wet weather 3Feed chiefly at night 3Defoliate plants 3Early damage, loss of chlorophyll

46 Resistant Varieties

47 Screening St. Augustine for chinch bug resistance

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51 Purpose of IPM 3Reduce the need for pesticides


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