番茄潜叶蛾对乙基多杀菌素的抗性监测及抗性风险评估  

Resistance monitoring and risk assessment of spinetoram in Tuta absoluta(Lepidoptera:Gelechiidae)

作　　者：渠成[1] 黄建雷 车午男[3] 谢振良 方勇 邓群英 王然[1] QU Cheng;HUANG Jian-Lei;CHE Wu-Nan;XIE Zhen-Liang;FANG Yong;DENG Qun-Ying;WANG Ran(Key Laboratory of Environment Friendly Management on Fruit and Vegetable Pests in North China(Co-construction by Ministry and Province),Ministry of Agriculture and Rural Affairs,Institute of Plant Protection,Beijing Academy of Agriculture and Forestry,Beijing 100097,China;College of Agriculture and Forestry Technology,Hebei North University,Zhangjiakou 075000,China;College of Plant Protection,Shenyang Agricultural University,Shenyang 110866,China;Agricultural Technology Extension Center of Zhanggong District of Ganzhou City,Ganzhou 341000,China;Yuelushan Laboratory,Changsha 410128,China;Seed Service Center of Changning,Changning 421500,China)

机构地区：[1]北京市农林科学院植物保护研究所,农业农村部北方果蔬有害生物绿色防控重点实验室(部省共建),北京100097 [2]河北北方学院农林科技学院,张家口075000 [3]沈阳农业大学植物保护学院,沈阳110866 [4]赣州市章贡区农业技术推广中心,赣州341000 [5]岳麓山实验室,长沙410128 [6]常宁市种子服务中心,常宁421500

出　　处：《昆虫学报》2024年第12期1634-1642,共9页Acta Entomologica Sinica

基　　金：国家重点研发计划项目(2023YFD1401200);北京市农林科学院科技创新能力建设专项(KJCX20230432);北京市农林科学院青年基金(QNJJ202224)。

摘　　要：【目的】本研究旨在明确番茄潜叶蛾Tuta absoluta对乙基多杀菌素的田间抗性水平及潜在抗性风险,以期为合理使用乙基多杀菌素防治番茄潜叶蛾及延缓番茄潜叶蛾对其抗性的产生提供理论依据。【方法】采用浸叶法测定了我国北方5省(直辖市、自治区)18个地区番茄潜叶蛾田间种群对乙基多杀菌素的抗性水平,利用浸叶法对番茄潜叶蛾室内敏感品系用乙基多杀菌素进行连续10代抗性筛选来评估抗性风险,并通过Tabashnik域性状分析法计算抗性现实遗传力(realized heritability,h^(2))和基于选择数据预测不同选择压下的抗性发展速率。【结果】本研究测定的18个番茄潜叶蛾田间种群中,来自北京密云、北京怀柔和内蒙古包头的3个种群对乙基多杀菌素产生低水平抗性,抗性倍数分别为6.7,6.0和7.1倍;其余15个种群对乙基多杀菌素均仍处于敏感水平。经过连续10代抗性筛选,番茄潜叶蛾对乙基多杀菌素的抗性倍数为8.9倍,抗性现实遗传力h^(2)为0.1973,预测不同选择压下(死亡率为50%,60%,70%,80%和90%),抗性上升至10倍所需要的代数分别为11.56,9.50,7.92,6.60和5.23代,抗性上升至100倍所需要的代数分别为23.12,18.99,15.83,13.19和10.47代。【结论】番茄潜叶蛾对乙基多杀菌素存在一定的抗性风险,田间应加强用药管理,注意与其他类型杀虫剂轮用,以延长该药剂的使用周期。【Aim】The aim of this study is to clarify the level of the field-evolved resistance of Tuta absoluta to spinetoram and its potential resistance risk,in order to provide a theoretical basis for the rational use of spinetoram to control T.absoluta and slowing development of its resistance to spinetoram.【Methods】The leaf-dipping method was used to determine the resistance levels of 18 field populations of T.absoluta collected from five provinces(municipalities or autonomous regions)in northern China to spinetoram.To assess the resistance risk of T.absoluta to spinetoram,10-generation consecutive selections with spinetoram were carried out in the spinetoram-susceptible strain of T.absoluta via the leaf-dipping method.After that,the realized heritability(h^(2))of resistance was calculated using Tabashnik’s method for threhold trait agalysis,and the resistance development rates under different selection pressures were predicted based on the data of selection.【Results】Among the 18 field populations of T.absoluta,three populations including the populations from Miyun and Huairou in Beijing,and Baotou in Inner Mongolia,exhibited low-level resistance to spinetoram,with the resistance ratios of 6.7,6.0 and 7.1,respectively.On the other hand,the other 15 populations of T.absoluta were susceptible to spinetoram.After 10-generation consecutive selections with spinetoram,T.absoluta developed 8.9-fold resistance to spinetoram,with the h^(2)of 0.1973.It was predicted that under different selection pressures(mortality=50%,60%,70%,80%and 90%),T.absoluta needed 11.56,9.50,7.92,6.60 and 5.23 generations,respectively,to develop 10-fold resistance to spinetoram,and 23.12,18.99,15.83,13.19 and 10.47 generations,respectively,to develop 100-fold resistance to spinetoram.【Conclusion】Due to the risk of T.absoluta developing resistance to spinetoram,it is essential to strengthen insecticide management in the field and emphasize the rotation with alternative types of insecticides to prolong the lifecycle of this insecticide.

关 键 词：番茄潜叶蛾 乙基多杀菌素 抗性监测 风险评估 现实遗传力 

分 类 号：Q965.9[生物学—昆虫学]