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Thiamethoxam, bifenthrin, and flonicamid resistance in Schizaphis graminum and associated fitness costs

文献类型： 外文期刊

作者： Gul, Hina 1 ; ul Haq, Ihsan 2 ; Ullah, Farman 3 ; Guncan, Ali 4 ; Desneux, Nicolas 5 ; Liu, Xiaoxia 1 ;

作者机构： 1.China Agr Univ, Coll Plant Protect, Dept Entomol, MARA Key Lab Pest Monitoring & Green Management, Beijing 100193, Peoples R China

2.Natl Agr Res Ctr, Inst Plant & Environm Protect, Insect Pest Management Program, Islamabad, Pakistan

3.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China

4.Ordu Univ, Fac Agr, Dept Plant Protect, TR-52200 Ordu, Turkiye

5.Univ Cote Azur, INRAE, CNRS, UMR ISA, F-06000 Nice, France

关键词： resistance selection; life table; insecticide; aphid; demography; greenbug

期刊名称：ENTOMOLOGIA GENERALIS （ 影响因子：6.9； 五年影响因子：5.2 ）

ISSN： 0171-8177

年卷期： 2023 年 43 卷 3 期

页码：

收录情况： SCI

摘要： The green bug, Schizaphis graminum Rondani (Hemiptera: Aphididae), is a major pest of wheat plants through direct feeding and indirectly by transmitting several viruses around the world. Insecticides including thiamethoxam, bifenthrin, and flonicamid, are widely used to control this pest. However, indiscriminate chemical applications cause resistance in several insect pests, including aphids. In the current study, we investigated the evolution of thiamethoxam, bifenthrin, and flonicamid resistance in S. graminum after continuous selection pressure. Furthermore, we assessed the fitness of all resistant strains compared to susceptible strains using the age-stage, two-sex life table method. Thiamethoxam, bifenthrin, and flonicamid-resistant strains were evolved with 38.57, 28.67, and 21.31-fold resistance after selection for over ten generations. Life table analysis showed that all resistant strains had significantly reduced adult longevity, fecundity, and reproductive days, and an increased total pre-reproductive period compared to susceptible aphids. In addition, the key demographic parameters such as the intrinsic rate of increase (r) and the net reproductive rate (R0) were substantially reduced in the resistant S. graminum populations. These findings provide in-depth information about the risk of insecticide resistance evolution and the associated fitness costs in S. graminum.

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