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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.

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Presentation on theme: "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."— Presentation transcript:

1 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

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

3 White grubs in bluegrass

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6 Sod webworms in St. Augustine

7 Sod webworm tunnels

8 Sod webworm

9 Sod Webworms 3Bermudagrass, Zoysiagrass & St. Augustinegrass

10 HelminthosporiumHelminthosporium 3Bermudagrass 370 - 80º F

11 Helminthosporium in bermudagrass

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

14 Dollar spot in bermuda

15 Targeting Applications

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

17 Biological Controls

18 Fall army worm

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

20 Resistant Varieties

21 Screening St. Augustine for chinch bug resistance

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25 Purpose of IPM 3Reduce the need for pesticides


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