2种药剂防治水稻中后期褐飞虱的效果研究  

Control Effects of Two Reagents against Brown Plant Hopper during Middle and Late Period of Rice

作　　者：姜建平 陆玉 冯素芳 周丹 张云玉 李志鹏 

机构地区：[1]江苏省常州市武进区礼嘉镇农技农机站,江苏常州213176 [2]江苏省常州市武进区植保植检站,江苏常州213017

出　　处：《安徽农业科学》2014年第35期12518-12519,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]了解50%呋虫胺水分散粒剂、60%吡蚜酮·噻嗪酮可湿性粉剂防治水稻褐飞虱的效果,确定其最佳使用剂量。[方法]通过田间小区药效试验研究了50%呋虫胺水分散粒剂、60%吡蚜酮·噻嗪酮可湿性粉剂对水稻中后期褐飞虱的防治效果、持效时间和最佳使用剂量。[结果]在褐飞虱卵孵化高峰期使用50%呋虫胺水分散粒剂180 g/hm2或者60%吡蚜酮·噻嗪酮可湿性粉剂600 g/hm2,药后23 d防效可达90%以上,且对作物安全,对天敌影响较小。[结论]该2种供试药剂在水稻中后期防治3代褐飞虱有较好的持效性,可望进一步研究开发。[Objective] Control effects of 50％ Dinotefuran Water Dispersible Granule and 60％ Pymetrozine · Buprofezin wettable powder against brown plant hopper to find out the best dose.[Method] Control effects,efficiency time and the best dose of 50％ Dinotefuran Water Dispersible Granule and 60％ Pymetrozine · Buprofezin wettable powder against brown plant hopper during middle and late period of rice were studied through plot test.[Result] After 50％ Dinotefuran Water Dispersible Granule at 180 g/hm2 or 60％ Pymetrozine · Buprofezin wettable powder at 600 g/hm2 was used to control brown plant hopper at the egg hatching peak,the control effects reached above 90％ in 23 days,furthermore they were safe to rice and natural enemy.[Conclusion] The two reagents have good effects to control brown plant hopper during middle and late period of rice,so they could be used to further apply.

关 键 词：褐飞虱 呋虫胺 吡蚜酮 噻嗪酮 药效试验 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治]