2015•Modern Agricultural Science and TechnologyRequires access

Study on Control Effect of Longge on the Larvae of Chilo suppressalis Walker and Cnaphalocrocis medinalis Guenée

Han Guo-xin

Abstract

Chilo suppressalis Walker and Cnaphalocrocis medinalis Guenee are the most important insect pests on rice in Southern China.Control effect of 20% Flubendiamide WDG(Longge)and several kinds of insecticides on the larvae of Chilo suppressalis Walker and Cnaphalocrocis medinalis Guenee were studied in the paddy field.The results showed that efficacy of dosage150 g/hm2 of 20% Flubendiamide WDG against Chilo suppressalis Walker and Cnaphalocrocis medinalis Guenee was 86.3% and 92.2% respectively at 3 days after spray.The control effects were 83.1% and 93.8%,respectively at 14 days after spray,which were higher than other insecticides.

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Key concepts: Chilo suppressalis, Cnaphalocrocis medinalis, Toxicology, Biology, Larva, Chilo, Lepidoptera genitalia, Botany