Lethal Effect of Spinosad Combined with Mung Bean Water Content Control on Callosobruchus chinensis

CHENGZhiyong, WANGQi, ZHOUHang, WUMeihui, ZHANGLixiang

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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (14) : 115-118. DOI: 10.11924/j.issn.1000-6850.casb2022-0428

Lethal Effect of Spinosad Combined with Mung Bean Water Content Control on Callosobruchus chinensis

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Abstract

In order to reduce the dosage of spinosad and delay the generation of drug resistance, the lethal effect of spinosad on Callosobruchus chinensis was tested by being combined with water content control of mung bean. The seed dressing method was used to determine the lethal effect of spinosad on adults and eggs of C. chinensis. The results showed that the mortality of the eggs and adults increased with the increase of spinosad concentration and the decrease of mung bean water content. The eggs of C. chinensis were more sensitive to spinosad, the mortality of eggs treated with adult sublethal LC10 concentration was as high as 65%. It is recommended to control the water content of mung bean in the range of 9.5%-11.5% when using spinosad to control C. chinensis. This study can provide reference for the environment-friendly management of mung bean storage.

Key words

spinosad / water content / mung bean / Callosobruchus chinensis / lethal effect

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CHENG Zhiyong , WANG Qi , ZHOU Hang , WU Meihui , ZHANG Lixiang. Lethal Effect of Spinosad Combined with Mung Bean Water Content Control on Callosobruchus chinensis. Chinese Agricultural Science Bulletin. 2023, 39(14): 115-118 https://doi.org/10.11924/j.issn.1000-6850.casb2022-0428

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