Insecticide Resistance and Plant Virus Status of <i>Bemisia tabaci</i> on Soybean in Suzhou

<i>Bemisia tabaci</i> (Gennadius) (Hemiptera: Aleyrodidae) is a super pest that seriously endangers the development of the agricultural economy worldwide. To prevent and control <i>B. tabaci,</i> insecticides have been used for many years, which has inevitably led to increase...

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Main Authors: Qi Li, Yao Ji, He Du, Shufang Ma, Jifei Zhu, Dehui Zhu, Natalia A. Belyakova, Youjun Zhang, Xin Yang
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Agriculture
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Online Access:https://www.mdpi.com/2077-0472/15/10/1071
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Summary:<i>Bemisia tabaci</i> (Gennadius) (Hemiptera: Aleyrodidae) is a super pest that seriously endangers the development of the agricultural economy worldwide. To prevent and control <i>B. tabaci,</i> insecticides have been used for many years, which has inevitably led to increased tolerance to chemical agents. To elucidate the development of field resistance and more scientifically and efficiently control <i>B. tabaci,</i> in December 2024, we conducted bioassays on <i>B. tabaci</i> on soybeans in Suzhou, Anhui Province, using 14 insecticides. These fourteen insecticides, namely, abamectin, spinetoram, thiamethoxam, flupyradifurone, imidacloprid, dinotefuran, acetamiprid, thiacloprid, nitenpyram, bifenthrin, deltamethrin, pyridaben, flonicamid, and emamectin benzoate, have multiple action sites and have all shown good control effects on <i>B. tabaci</i>. The results revealed that <i>B. tabaci</i> has developed high resistance to many insecticides and that some insecticides have even tended to fail, but <i>B. tabaci</i> is still sensitive to a small number of insecticides. Different biotypes of <i>B. tabaci</i> differ significantly in terms of insecticide resistance. We determined that the population of <i>B. tabaci</i> on soybean in Suzhou was the MED (Q) biotype. It carried the TYLCV virus, with a virus carrying rate of 60%, but did not carry ToCV or CCYV.
ISSN:2077-0472