Onion Thrips - Utah Pests - Utah State University

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<strong>Thrips</strong> survival on plants vs. immigrationi i Immediately after insecticides were applied: • Open plants (allow immigration & natural enemies) • Spray with soap and Caged plants (remove motile stages & exclude immigrants & NEs) PVC pipe collar
Importance of egg survival Influence of exclusion (caging) on onion thrips populations p on plants 2 wk after insecticides 2006 E i l Egg survival was more important than new immigrants
Page 1 and 2: Egg Diane Alston Entomologist Utah
Page 3 and 4: Adults Eggs, Larvae, & Adults Prepu
Page 5 and 6: Examples from 2006 & 07 insecticide
Page 7 and 8: Insecticide efficacy Motile thrips
Page 9 and 10: Insecticide efficacy Adult Western
Page 11 and 12: In 2006: • Success, Carzol, and W
Page 13 and 14: Examples from 2006 & 07 insecticide
Page 15 and 16: Effect of immobile life stages on p
Page 17 and 18: Insecticide efficacy Thrips Eggs (S
Page 19 and 20: Egg hatch from leaves Egg hatching
Page 21 and 22: er leaf thrips pe hatched t an # of
Page 23 and 24: Eggs are the major contributor to p
Page 25: Examples from 2006 & 07 insecticide
Page 29 and 30: Influence of exclusion (caging) on
Page 31 and 32: Abundance of Immigrating Adults Inf
Page 33 and 34: Egg survival and immigrating adults
Page 35 and 36: Mortality factor (insecticide): •
Page 37: Make onions as tolerant / unattract

Onion Thrips - Utah Pests - Utah State University

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