噻虫嗪灌根和捕食螨释放对设施西瓜刺吸类害虫的种群抑制作用  

Suppressing Effects for Piercing Pests on Protected Watermelon by Thiamethoxam Drenching and Predatory Mites

作　　者：张妍 王培 张友军[1] 徐宝云[1] 王少丽[1] ZHANG Yan;WANG Pei;ZHANG Youjun;XU Baoyun;WANG Shaoli(Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China;Plant Protection Institute of Hunan Province,Changsha 410125,Hunan,China)

机构地区：[1]中国农业科学院蔬菜花卉研究所,北京100081 [2]湖南省植物保护研究所,湖南长沙410125

出　　处：《中国蔬菜》2021年第3期78-82,共5页China Vegetables

基　　金：国家重点研发计划项目(2016YFD0200500);国家现代西甜瓜产业技术体系项目(CARS-25);中国农业科学院科技创新工程项目(CAAS-ASTIP-IVFCAAS);蔬菜有害生物控制与优质栽培北京市重点实验室项目。

摘　　要：蚜虫、粉虱、蓟马和叶螨等是设施蔬菜和瓜类作物生产中的常发性刺吸类害虫,同期同域发生为害,蚜虫、粉虱和蓟马的化学防控常依赖于烟碱类杀虫剂,但此类杀虫剂不能防控叶螨种群。本试验在设施西瓜栽培中,用烟碱类杀虫剂噻虫嗪进行苗期灌根后,在西瓜生长期内释放智利小植绥螨2次,可显著压低上述刺吸类害虫的田间种群数量,防治效果达78.10%~97.42%,实现协同控制效果。Aphids,whiteflies,thrips and spider mites,etc.are common piercing pests for vegetables and melons in protected cultivation.These pests occur in the same region during the same period.The chemical control for aphids,whiteflies and thrips often relies on the neonicotinoid pesticides.However,such kind of insecticides are unable to control the spider mite population.In order to solve this problem,this experiment used neonicotinoid pesticide thiamethoxam to irrigate the roots at the seedling stage,and released for 2 times the natural enemy Phytoseiulus persimilis(Acari:Phytoseiidae)during the growth period of watermelon.Taking these measures,the field population of above piercing pests could be significantly reduced,and the control efficacy was 78.10%-97.42%,achieving the cooperative control effect.

关 键 词：噻虫嗪 灌根 捕食螨 刺吸类害虫 

分 类 号：S436.5[农业科学—农业昆虫与害虫防治]