Important Insect Pests in Warm Season Turfgrasses Turfgrass Pest ...

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Describe the symptoms How can you confirm that grubs are the problem? Where do grubs live and feed? Some scarabs make mounds Pocket gopher Peltotrupes profundus Green June beetle casting 6
Pest identification Identification of common grubs • Scarabs vary in size, color, and habits, but adults have 3-segmented, clubbed antennae • Larvae molt 3 times (have 3 instars) • Look at raster (hair) pattern for grub ID Raster Antenna Sugarcane grub EGG LARVA PUPA ADULT What do you need to know to manage grubs? Following rescue treatments (Sevin or Dylox), GJB and flower beetle grubs often come to surface to die! • Development time depends on species; generally 1-2 generations per year in Florida • Insecticides should be targeted against newly hatched first instars; curative control of 3 rd instars is harder to achieve • Some grubs like areas of high organic matter; avoid organic fertilizers (e.g., chicken litter) • Insecticides usually need to be watered in to reach the soil 7
Page 1 and 2: Important Insect Pests in Warm Seas
Page 3 and 4: Look for silken webbing Tropical so
Page 5: False Chinch Bug (Nysius raphanus)
Page 9: Fire Ants • Health hazard: painfu

Important Insect Pests in Warm Season Turfgrasses Turfgrass Pest ...

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