Alfalfa weevil - PowerPoint PPT Presentation

Using Phenology Models in Insect Management Decision-making

Using Phenology Models in Insect Management Decision-making. Rick Weinzierl, University of Illinois. Phenology, DDs, &amp; Insect Management. Know: Insect growth and development are temperature-dependent.

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Disease and Insect Identification

Disease and Insect Identification. _____ Rust . _____ Ergot. _____ Wilt . _____ Scab. _____ Gall . _____ Curly Top. _____ Hairy Root. Necrosis. Spider Mite . Grasshoppers/Crickets. Earwig . Leafhopper. Aphid. Corn Earworm. Wireworm . Potato Beetle. Alfalfa Weevil .

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Unit 9: Alfalfa Insects

Unit 9: Alfalfa Insects. Unit 9: Alfalfa Insects. Alfalfa Weevil Found throughout the U.S. Damage done by larvae feeding on plant tips, new leaves, flowers Can strip the entire plant Damaged fields can appear whitish in color Insecticides can control effectively

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302 views • 13 slides

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