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Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (16): 144-149.doi: 10.11924/j.issn.1000-6850.casb2023-0501

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Analysis of Application Potentials of Chlorantraniliprole Against Conpomorpha sinensis

CHI Yanyan(), CHEN Bingxu, QUAN Linfa, DONG Yizhi, XU Shu, YAO Qiong()   

  1. Institute of Plant Protection, Guangdong Academy of Agricultural Sciences/ Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs/ Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640
  • Received:2023-07-10 Revised:2024-01-11 Online:2024-06-05 Published:2024-05-30

Abstract:

In order to systematically evaluate the application potentials of chlorantraniliprole against Conpomorpha sinensis, the bioactivity of chlorantraniliprole to eggs, adults and the effect of chlorantraniliprole on longevity and fecundity were determined in laboratory, and the control effect was tested in the field. The result showed that the LC50 of chlorantraniliprole to eggs of C. sinensis which were laid for 48 h was 10.650 mg/L, and the ovicidal activity of chlorantraniliprole was significantly higher than that of lambda-cyhalothrin and lower than diflubenzuron. The 24 h LC50 of chlorantraniliprole to adults of C. sinensis was 145.856 mg/L, which was equal to lambda-cyhalothrin. The LC10 and LC30 doses of chlorantraniliprole had small effects on the longevity of C. sinensis male adult and egg hatchability, but they could effectively reduce the longevity and fecundity of female adult. When C. sinensis was in peak oviposition period to egg incubation period, insecticides were sprayed one time. The results of 14 days after treatment showed that effect of 200 g/L chlorantraniliprole SC which was diluted 1500 and 3000 times respectively was 95.29%, and the effect of 200 g/L chlorantraniliprole SC which was diluted 4500 times was 84.71%. The effects of above three treatments were significantly higher than that of 200 g/L diflubenzuron SC 1000 times and 25 g/L lambda-cyhalothrin 500 times. This study suggested that chlorantraniliprole exhibited the potential to be exploited as a control strategy for C. sinensis.

Key words: chlorantraniliprole, Conpomorpha sinensis, bioactivity, sublethal effect, field efficacy