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Comparative toxicity of some insecticides in eupelmus urozonus hymenoptera eupelmidae and dacus oleae diptera trypetidae



Comparative toxicity of some insecticides in eupelmus urozonus hymenoptera eupelmidae and dacus oleae diptera trypetidae



Entomophaga 22(2): 237-242



The toxicity of 11 insecticides was determined in the laboratory (topical application) for females of E. urozonus. The LD50 ranged from 3.2 ng/insect for parathion to 76.7 ng/insect for trichlorfon. The residual activity of dimethoate, fenthion, diazinon and bromophos on olive leaves was determined for the parasite and D. oleae. After olive leaves were treated with the 4 insecticides at dosages of 0.3.permill. or 3.permill. active material (this latter in combination with 4% protein hydrolyzate), there was consistently higher mortality of D. oleae than E. urozonus.

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Accession: 005002502

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