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Your Position :Home->Past Journals Catalog->2011年48 No.4

The toxicity of three chitin synthesis inhibitors to Calliptamus italicus (Othoptera: Acridoidea)
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Key Words:Calliptamus italicus, chitin synthesis inhibitor, lethal concentration, molting rate
Abstract:       The effectiveness of three chitin synthesis inhibiting insecticides; Flufenoxuron, Diflubenzuron and Buprofezin, were tested on the eggs and 3rd instar larvae of Calliptamus italicus(L.). The results show that Flufenoxuron had the highest control efficacy with LC50 and LC90 of 1.34 mg/L and 14.17 mg/L respectively. Diflubenzuron was the next most toxic, with LC50 and LC90 of of 2.09 mg/L and 45.22 mg/L respectively and Buprofezin the least toxic with a rate of population decrease < 50% at a concentration of 50 mg/L. Flufenoxuron and Diflubenzuron also decreased the larval molting and egg hatching rate of C. italicus.
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