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 transcript:

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

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

White grubs in bluegrass

Sod webworms in St. Augustine

Sod webworm tunnels

Sod webworm

Sod Webworms 3Bermudagrass, Zoysiagrass & St. Augustinegrass

HelminthosporiumHelminthosporium 3Bermudagrass º F

Helminthosporium in bermudagrass

Dollar Spot 3Bermudagrass º F 3Wet foliage

Dollar spot in bermuda

Targeting Applications

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

Biological Controls

Fall army worm

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

Resistant Varieties

Screening St. Augustine for chinch bug resistance

Purpose of IPM 3Reduce the need for pesticides

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