不同药剂对梨树二斑叶螨的田间防治效果评价  

Evaluation of field control efficacy of different pesticides against Tetranych urticae Koch in pear tree

作　　者：曹梦娇 徐伟东 姚张良 陆强 贾怀志 朱晨辉 CAO Mengjiao;XU Weidong;YAO Zhangliang;LU Qiang;JIA Huaizhi;ZHU Chenhui(Jiaxing Soil and Fertilizer Plant Protection and Rural Energy Station,Jiaxing 314100,Zhejiang;Jiaxing Academy of Agricultural Sciences,Jiaxing 314100,Zhejiang;Fruit Tree and Sericulture Technology Promotion Station of Xiuzhou District,Jiaxing 314100,Zhejiang)

机构地区：[1]嘉兴市土肥植保与农村能源站,浙江嘉兴314100 [2]嘉兴市农业科学院,浙江嘉兴314100 [3]嘉兴市秀洲区果树与蚕桑技术推广站,浙江嘉兴314100

出　　处：《浙江农业科学》2024年第11期2672-2675,共4页Journal of Zhejiang Agricultural Sciences

基　　金：嘉兴市秀洲区财政资助项目(2023010)。

摘　　要：为筛选适用于防治梨园二斑叶螨的药剂,开展田间药效试验。结果表明:药后3 d,各药剂处理的防治效果为63.93%~74.59%,药后7 d防治效果为71.55%~83.04%,药后14 d防治效果为75.97%~86.80%,前期整体防治效果不高,后期防治效果有所上升。其中,20%丁氟螨酯悬浮剂+43%联苯肼酯悬浮剂处理14 d后的防治效果最高,可达86.80%,其次是43%联苯肼酯悬浮剂和22%阿维菌素·螺螨酯悬浮剂,14 d后的防治效果分别为85.84%和83.05%。以上3种农药可以在当地梨树上推广应用,不推荐施用20%丁氟螨酯单剂。In order to screen the agents suitable for the control of Tetranych urticae Koch in pear orchards,field efficacy tests were carried out.The results showed that the control efficacy of each agent was 63.93%-74.59%on 3 days after treatment,71.55%-83.04%on 7 days after treatment,and 75.97%-86.80%on 14 days after treatment.Among them,the control efficacy of 20%cyflumetofen suspension+43%bifenazat suspension was the highest after 14 days,reaching 86.80%,followed by 43%bifenazide suspension and 22%avermectin-spirofenolate suspension,with 85.84%and 83.05%after 14 days,respectively.The above three pesticides can be popularized and applied on local pear trees,and a single dose of 20%butafenoxoxil is not recommended.

关 键 词：二斑叶螨 杀螨剂 防治效果 梨树 

分 类 号：S436.612[农业科学—农业昆虫与害虫防治]