常用化学药剂对稻飞虱的室内毒力测定及田间药效试验  

Laboratory Toxicity and Field Efficacy Test of Common Chemicals Against Rice Planthopper

作　　者：赵云霞 张学峰 唐艺婷 张凯[1] 曹凯歌[1] 付佑胜[1] 周长勇[1] 陈澄宇 Zhao Yunxia;Zhang Xuefeng;Tang Yiting;Zhang Kai;Cao Kaige;Fu Yousheng;Zhou Changyong;Chen Chengyu(Jiangsu Xuhuai Huaiyin Institute of Agricultural Sciences/National Huaian Observation and Experiment Station of Agricultural Sciences,Huai'an Jiangsu 223001,China)

机构地区：[1]江苏徐淮地区淮阴农业科学研究所/国家农业科学淮安观测实验站,江苏淮安223001

出　　处：《农药科学与管理》2024年第4期43-48,共6页Pesticide Science and Administration

基　　金：淮安市农科院科研发展基金(HNY202109);江苏省产学研合作项目(BY2022984);院高层次引进人才基金(0152020009B)。

摘　　要：稻飞虱是水稻生产上的重要害虫,为筛选出防治稻飞虱的高效低毒药剂。本试验分别采用稻茎浸渍法和常规喷雾法进行室内毒力测定和田间药效试验。室内生测结果表明,10%三氟苯嘧啶悬浮剂,70%吡虫啉水分散粒剂,20%烯啶虫胺可溶液剂,25%噻虫嗪水分散粒剂,50%吡蚜酮水分散粒剂和25%呋虫胺可湿性粉剂对白背飞虱3龄若虫的致死中浓度LC50值分别为0.429、2.361、0.499、1.014、11.812和1.631 mg/L,10%三氟苯嘧啶悬浮剂和20%烯啶虫胺可溶液剂表现出较好的室内毒杀活性。田间药效试验结果表明,6种药剂对稻飞虱药后3 d的防效为64.28%~93.67%,药后7 d的防效为85.34%~95.41%,其中10%三氟苯嘧啶悬浮剂、20%烯啶虫胺可溶液剂和25%呋虫胺可湿性粉剂对稻飞虱药后3 d的防效分别为93.67%、93.01%和89.95%,速效性均较好,药后7 d的防效分别为95.41%、86.62%和92.71%,持效期均较长。综上所述,10%三氟苯嘧啶悬浮剂、20%烯啶虫胺可溶液剂和25%呋虫胺可湿性粉剂是防治稻飞虱的较好药剂。Rice planthopper pose significant threats to rice production.In order to screen out effective and low toxic agents for controlling rice planthopper.indoor toxicity and field efficacy tests using rice stem impregnation method and conventional spray method were conducted.The laboratory efficacy results showed that the median lethal concentrations LC50of 10% triflumezopyrim SC,70%imidacloprid WG,20% nitenpyram SL,25% thiamethoxam WG,50% pymetrozine WG and 25%dinotefuran WP were 0.429、 2.361、 0.499、 1.014、 11.812 and 1.631 mg/L,respectively.The10% triflumezopyrim SC and 20% nitenpyram SL showed good indoor toxicity.The results of field efficacy tests showed that the 6 agents against rice planthopper ranged from 64.28%~93.67% at3 days after application and 85.34%~95.41% at 7 days after application.The control effects of 10%triflumezopyrim SC,20% nitenpyram SL and 25% dinotefuran WP against rice planthopper at 3 days after treatment were 93.67%,93.01% and 89.95%,respectively,and at 7 days of treatment were95.41%,86.62% and 92.71%,respectively,with prolonged efficacy.In conclusions,10%triflumezopyrim SC,20% nitenpyram SL and 25% dinotefuran WP are effective agents for controlling rice planthopper.

关 键 词：稻飞虱 化学杀虫剂 室内毒力 田间防效 

分 类 号：S482.3[农业科学—农药学] S481.9[农业科学—植物保护]