噻虫胺和高效氯氟氰菊酯对瓜蚜的毒力活性及田间防效  

Toxicity Activity and Field Control Effect of Clothianidin and λ-Cyhalothrin on Aphis gossypii

作　　者：张妍 徐丹丹[1] 王少丽[1] ZHANG Yan;XU Dandan;WANG Shaoli(Institute of vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China)

机构地区：[1]中国农业科学院蔬菜花卉研究所,北京100081

出　　处：《现代农药》2021年第3期39-42,共4页MODERN AGROCHEMICALS

基　　金：国家重点研发计划项目(2016YFD0200500);财政部和农业农村部:国家现代农业产业技术体系(CARS-25);蔬菜有害生物控制与优质栽培北京市重点实验室和中国农业科学院科技创新工程(CAAS-ASTIP-IVFCAAS)。

摘　　要：瓜蚜(Aphis gossypii)是一种重大农作物害虫,发生普遍且为害严重。通过室内毒力测定及田间药效试验评价噻虫胺、高效氯氟氰菊酯及其混剂对瓜蚜的杀虫活性。室内毒力测定结果表明,噻虫胺及其与高效氯氟氰菊酯的2种不同剂型混剂对瓜蚜48 h的LC50值分别为2.674 mg/L、1.411 mg/L和4.119 mg/L,其毒力活性显著高于高效氯氟氰菊酯(LC50值为42.748 mg/L)。田间药效试验结果表明,噻虫胺、高效氯氟氰菊酯及其二者的2种混剂对瓜蚜表现出优良防效,药后7 d的防效均高于83%。因此,噻虫胺、高效氯氟氰菊酯及其二者组成的混剂可用于田间瓜蚜的化学防控。Aphis gossypii,an important agricultural insect,occurs widely and causes severe damage on many host plants.The toxicity activities of clothianidin,λ-cyhalothrin and their two mixed agents were evaluated using bioassay and the field control effect.From the bioassay experiment,clothianidin and the two mixed agents withλ-cyhalothrin were proved to have high toxicities on A.gossypii after treatment for 48 h with LC50 values of 2.674 mg/L,1.411 mg/L and 4.119 mg/L,respectively,as was significantly higher thanλ-cyhalothrin with LC50 values of 42.748 mg/L.In the field trials,the four tested insecticides all exhibited higher control efficacies,with more than 83%after insecticides spray for 7 d.It is concluded that clothianidin,λ-cyhalothrin and their two mixed agents could be adopted for the chemical control of A.gossypii in the field.

关 键 词：噻虫胺 高效氯氟氰菊酯 瓜蚜 毒力活性 田间防效 

分 类 号：S436.421.21[农业科学—农业昆虫与害虫防治]