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  • Title: Dynamic monitoring of the insecticide resistance status of Bemisia tabaci across China from 2019-2021.
    Author: Ji Y, Zheng H, Zhang C, Tan X, He C, Fu B, Du T, Liang J, Wei X, Gong P, Liu S, Yang J, Huang M, Yin C, Xue H, Hu J, Du H, Xie W, Yang X, Zhang Y.
    Journal: Pest Manag Sci; 2024 Feb; 80(2):341-354. PubMed ID: 37688583.
    Abstract:
    BACKGROUND: Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) is a major agricultural insect pest that causes severe economic losses worldwide. Several insecticides have been applied to effectively control this key pest. However, owing to the indiscriminate use of chemical insecticides, B. tabaci has developed resistance against these chemical compounds over the past several years. RESULTS: From 2019 to 2021, 23 field samples of B. tabaci were collected across China. Twenty species were identified as the Mediterranean 'Q' type (MED) and three were identified as MED/ Middle East-Asia Minor 1 mixtures. Subsequently, resistance of the selected populations to different insecticides was evaluated. The results showed that 13 populations developed low levels of resistance to abamectin. An overall upward trend in B. tabaci resistance toward spirotetramat, cyantraniliprole and pyriproxyfen was observed. In addition, resistance to thiamethoxam remained low-to-moderate in the 23 field populations. CONCLUSION: These findings suggest that the overall resistance of the field-collected B. tabaci populations has shown an upward trend over the years in China. We believe our study can provide basic data to support integrated pest management and insecticide resistance management of field B. tabaci in China. © 2023 Society of Chemical Industry.
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