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Published byHillary Martin Modified over 9 years ago
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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 period of 30 days
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White Grub (cont.) 33rd instar does most of the damage 3Overwinters in 3rd instar stage 3Control aimed at newly hatched grubs
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White grubs in bluegrass
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Sod webworms in St. Augustine
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Sod webworm tunnels
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Sod webworm
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Sod Webworms 3Bermudagrass, Zoysiagrass & St. Augustinegrass
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HelminthosporiumHelminthosporium 3Bermudagrass 370 - 80º F
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Helminthosporium in bermudagrass
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Dollar Spot 3Bermudagrass 360 - 80º F 3Wet foliage
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Dollar spot in bermuda
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Targeting Applications
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ASONDJFMAMJJASO Months 1086420 Winter Broadleaf Weeds Summer Broadleaf Weeds Poa Annua Crabgrass Weed Population Weed Control Programs
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Biological Controls
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Fall army worm
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Fall Armyworms 3Favored by cool, wet weather 3Feed chiefly at night 3Defoliate plants 3Early damage, loss of chlorophyll
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Resistant Varieties
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Screening St. Augustine for chinch bug resistance
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Purpose of IPM 3Reduce the need for pesticides
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