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Title of Journal: Phytoparasitica

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Abbravation: Phytoparasitica

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Springer Netherlands

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DOI

10.1002/asna.19121910101

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1876-7184

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Topical and residual toxicity of six pesticides to

Authors: Fatih Dağlı Şerife Ünal Bahşi
Publish Date: 2009/09/22
Volume: 37, Issue: 5, Pages: 399-405
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Abstract

The toxicity of six pesticides four insecticides and two fungicides to Orius majusculus Reuter Hemiptera Anthocoridae adults and nymphs was determined using different exposure methods Mortality upon topical exposure to abamectin endosulfan and spinosad at recommended field doses ranged from 56 to 100 after 24 h However in leaf residue tests toxicity to both life stages decreased significantly ranging from 0 to 33 mortality Benomyl and copper salts + mancozeb fungicides were much less toxic to O majusculus with less than 15 mortality of either adults or nymphs in topical and residue bioassays In persistent toxicity tests insects were exposed to the same three insecticides for 4 days mortality varied from 38 to 100 Egg hatching was not significantly affected when abamectin endosulfan and spinosad were topically applied Number of eggs laid per female in choice and nochoice tests did not differ significantly from the control The insecticides did not show considerable repellent effect in the choice tests Topical residue and systemic uptake methods were also compared to determine the differences in the toxicity levels of imidacloprid a systemic insecticide However 100 mortality occurred with all methodsThis study was supported by the Scientific Research Projects Administration Unit of Akdeniz University The authors thank Prof I Tunç and Assoc Prof F Erler Plant Protection Department Faculty of Agriculture Akdeniz University Antalya Turkey and two anonymous reviewers for their comments on the manuscript


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