四种常用杀虫剂对不同农田景观烟粉虱MED隐种成虫种群毒力测定与田间防效  

Toxicity and field control effects of four commonly used insecticides on adult Bemisia tabaci MED(Hemip-tera:Aleyrodidae)in different agricultural landscapes

作　　者：尚昊培 窦文珺 羊绍武 王飞 李明江 陈国华[1] 张晓明[1] SHANG Haopei;DOU Wenjun;YANG Shaowu;WANG Fei;LI Mingjiang;CHEN Guohua;ZHANG Xiaoming(College of Plant Protection,Yunnan Agricul-tural University,National Key Laboratory for Conservation and Utilization of Biological Resources in Yunnan,Kun-ming 650201,China;Yunnan Expo Horticulture Co.,Ltd.,Kunming 650225,China)

机构地区：[1]云南农业大学植物保护学院/云南生物资源保护与利用国家重点实验室,昆明650201 [2]云南世博园艺有限公司,昆明650225

出　　处：《生态学杂志》2023年第7期1713-1720,共8页Chinese Journal of Ecology

基　　金：云南省基础研究专项面上项目(202201AT070269);国家自然科学基金项目(31760541);云南省中青年学术技术带头人后备人才项目(202105AC160071);“云南省高层次人才培养支持计划”青年拔尖人才专项(YNWRQNBJ2020291)资助。

摘　　要：为明确常用杀虫剂对不同农田景观番茄田烟粉虱MED隐种的毒力,本研究调查了不同杀虫剂对云南省常见农田景观中烟粉虱MED隐种田间种群的防效。于室内采用浸叶法,测定了4种杀虫剂对4种不同农田景观番茄田烟粉虱MED隐种的毒力;于田间采用喷雾法,评价了不同杀虫剂对不同农田景观番茄田烟粉虱MED隐种的防效。结果表明:夏、冬番茄田中不同农田景观烟粉虱MED隐种均对阿维菌素最敏感,夏番茄田的城郊、花卉、河流和山地景观中LC50依次为2.61、3.65、4.84和2.75 mg·L^(-1),冬番茄田的花卉、河流和山地景观中LC50分别为2.03、3.11和1.64 mg·L^(-1);夏、冬番茄田中,4种杀虫剂对烟粉虱MED隐种的田间防效从高到低均为阿维菌素>氟啶虫胺腈>噻虫嗪>联苯菊酯;农田景观类型显著影响烟粉虱MED隐种种群对杀虫剂的敏感性,城郊和花卉景观中的烟粉虱MED隐种对杀虫剂较为敏感,河流景观中的烟粉虱MED隐种对杀虫剂最不敏感;供试杀虫剂对种植于城郊和花卉种植区的番茄田中烟粉虱MED隐种种群具有较好的控制效果,在烟粉虱MED隐种的化学防治过程中可优先选择阿维菌素和氟啶虫胺腈。We investigated the control effect of different insecticides on Bemisia tabaci MED field population in tomato fields under different agricultural landscapes in Yunnan Province.The toxicity of four insecticides to B.tabaci MED in tomato fields under four agricultural landscapes was determined by leaf dipping method in laboratory.Field control effects of these four insecticides were evaluated by spraying method.The results showed that B.tabaci MED were most sensitive to abamectin in summer and winter,while the LC 50 of summer tomato fields in suburban,flow-er,river and mountain landscapes were 2.61,3.65,4.84 and 2.75 mg·L^(-1),respectively.The LC 50 of winter tomato fields in flower,river and mountain landscapes were 2.03,3.11 and 1.64 mg·L^(-1),respectively.The field control effects of the four insecticides against B.tabaci MED in tomato fields from high to low were abamectin>sul-foxaflor>thiamethoxam>bifenthrin in summer and winter.The sensitivity of B.tabaci MED population to insecti-cides was significantly affected by landscape types.B.tabaci MED was more sensitive to insecticides in suburban and flower landscapes,but less sensitive to insecticides in river landscape.The tested insecticides have a good con-trol effect on B.tabaci MED in tomato fields under suburb and flower landscapes.Abamectin and sulfoxaflor can be preferentially selected in chemical control of B.tabaci MED.

关 键 词：烟粉虱 杀虫剂 毒力测定 田间防效 农田景观 

分 类 号：S482.3[农业科学—农药学]