Lecture19 - Leaf miners Leaf miner types serpentin e blotch...

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Unformatted text preview: Leaf miners Leaf miner types serpentin e blotch Leaf miner or Scorch? Managing Leaf miners Identify- Is it a fly, moth, wasp or beetle? Foliar acephate kills all 4 kinds Spinosad kills flies, moths, and wasps. Soil applied imidacloprid kills wasps, beetles and flies Learn life cycle Target newly hatched larvae with insecticide Timing differs for contact, systemic foliar and soil applied systemic insecticides Conserve natural enemies Nematodes Insecticide Application Targets Contact Insecticide (Adults) Adults pick up insecticide as they walk on leaves in search of egg laying sites (eg. Pyrethroids permethrin, bifenthrin, deltamethrin etc) Foliar systemic insecticide (Larvae) Material penetrates leaf tissue Direct toward egg hatch and young larvae (eg. acephate, spinosad) Soil applied insecticide (Larvae) Apply in fall or early spring to soil Young leaf tissue in contains insecticide that killes larvae (eg. Imidacloprid) Birch Leaf Miner; Fenusa pusilla...
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This note was uploaded on 04/14/2008 for the course ENTM 340 taught by Professor Sadoff during the Spring '08 term at Purdue University-West Lafayette.

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Lecture19 - Leaf miners Leaf miner types serpentin e blotch...

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