摘要
【目的】筛选对小麦长管蚜有较好防效的高效新型杀虫剂及合理使用剂量。【方法】采用田间喷雾的方法对麦长管蚜进行防治。【结果】药后7 d,20%啶虫脒可湿性粉剂22.5、30和45 g a.i./hm2处理的防效分别为96.15%、99.76%和99.39%,防效与对照药剂相当;25%吡蚜酮悬浮剂60、90和120 g a.i./hm2三个处理的防效分别为96.26%、97.83%和95.35%,防效略高于对照药剂。10%烯啶虫胺水剂22.5、30和45 g a.i./hm2三处理药后7 d的防效分别为62.50%、48.07%和79.51%,极显著低于对照药剂处理的防效,各试验药剂处理对小麦安全,无药害。【结论】防治麦长管蚜可用:20%啶虫脒可湿性粉剂22.5～30 g a.i./hm2、25%吡蚜酮悬浮剂60～90 g a.i./hm2、5%吡虫啉可湿性粉剂22.5 g a.i./hm2,加水喷雾防治,对麦长管蚜均表现了良好的防效。
[Objective and Method]The aim of present study was conducted to find out the insecticides with new-type high performance and better control efficiency then its reasonable dosage were applied in field experiments： 20% acetamiprid WP,25% pymetrozine SC,10% nitenpyram AS and 5% imidacloprid WP by spray.[Result]It showed that all the four insecticides were safe and had no medicine harm to wheat.After seven days,the control effect of 22.5,30 and 45 g a.i./hm2 of 20% acetamiprid WP correspond with 5% imidacloprid WP,reached 96.15%,99.76% and 99.39% after seven days,the effect of 60,90 and 120g a.i./hm2 of 25% pymetrozine SC was higher than 5% imidacloprid WP,reached 96.26%、97.83% and 95.35%,the effect of 22.5,30 and 45 g a.i./hm2 of 10% nitenpyram AS was significantly lower than 5% imidacloprid WP,its effect reached 62.50%,48.07% and 79.51%.[Conclusion]Proper amount of 20% acetamiprid WP was 22.5-30 g a.i./hm2,25% pymetrozine SC was 60-90 g a.i./hm2,5% imidacloprid WP was 22.5g a.i./hm2.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2011年第2期352-354,共3页
Xinjiang Agricultural Sciences
基金
国家科技支撑计划课题(2009BADA4B00)
现代农业(小麦)产业技术体系(MATS)专项
关键词
杀虫剂
麦长管蚜
防效
insecticides； Sitobion avenae； control effect
