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| Monitoring of Resistance in Field Populations of Bemisia tabaci to 5 Insecticides in China |
| TAN Xing1，ZHENG Huixin1，JI Yao1，XIE Wen2，ZHANG Youjun2* |
| 1College of Plant Protection，Hunan Agricultural University，Changsha 410128，Hunan，China；2Department of Plant Protection，Institute of Vegetables and Flowers，Chinese Academy of Agricultural Sciences，Beijing 100081，China |
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Abstract To clear and definite the resistance level of Bemisia tabaci（Gennadius）in fields，this study adopted finger-shape tube method in 2019 at 6 areas to determine the virulence of 5 insecticides of B. tabaci samples．The results showed that all B. tabaci in the 6 regions has higher resistance to imidacloprid and thiamethoxam. The highest resistance level of B. tabaci population to imidacloprid was 113.14 in Changsha，Hunan．All B. tabaci populations were sensitive to flupyradifurone，avermectin and cyantraniliprole in the 6 regions．Based on previous literature reports and findings of this investigation，B. tabaci populations had shown higher resistance to imidacloprid and thiamethoxam．Careful usage was suggested．Continuously using flupyradifurone，avermectin，and cyantraniliprole in fields to control B. tabaci was recommended．
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Received: 09 August 2020
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