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20%氯虫苯甲酰胺悬浮剂防治稻纵卷叶螟的效果及施药适期探讨
引用本文:陈再廖,周学杰,林济忠,叶哓东.20%氯虫苯甲酰胺悬浮剂防治稻纵卷叶螟的效果及施药适期探讨[J].安徽农业科学,2009,37(6):2604-2605.
作者姓名:陈再廖  周学杰  林济忠  叶哓东
作者单位:浙江省温州市植物保护站,浙江温州,325000
摘    要:目的]探讨20%氯虫苯甲酰胺悬浮剂对稻纵卷叶螟的防治效果和防治适期。方法]对不同药剂进行对比试验。结果]用20%氯虫苯甲酰胺150 m l/hm^2在2龄幼虫高峰期施药,7 d后防治效果95.2%,保叶效果83.6%;在3龄幼虫盛发期施药,7 d后防治效果达93.2%,保叶效果87.1%;在稻纵卷叶螟盛发期采用分期施药的方法,防治效果和保叶效果均以2龄幼虫高峰期施药最好。结论]20%氯虫苯甲酰胺悬浮剂防治稻纵卷叶螟的适期在1-2龄幼虫高峰期。在稻纵卷叶螟盛发期较长的情况下,以氯虫苯甲酰胺150m l/hm^2于2龄幼虫盛期施药效果最佳。

关 键 词:氯虫苯甲酰胺  稻纵卷叶螟  防治效果  施药适期

Study on Control Efficiency and Optimum Spraying Stage of 20% Chlorantraniliprole Suspending Agent against Cnaphalocrocis medinalis Guenee
CHEN Zai-liao et al.Study on Control Efficiency and Optimum Spraying Stage of 20% Chlorantraniliprole Suspending Agent against Cnaphalocrocis medinalis Guenee[J].Journal of Anhui Agricultural Sciences,2009,37(6):2604-2605.
Authors:CHEN Zai-liao
Institution:CHEN Zai-liao et al(Wenzhou Plant Protection Station,Wenzhou,Zhejiang 325000)
Abstract:Objective] The research aimed to study the control efficiency and the optimum spraying stage of 20% Chlorantraniliprole suspending agent against Cnaphalocrocis medinalis Guenee.Method] The controling-tests were carried out among different pesticides.Result] It showed that spraying 150 ml/hm2 20% Chlorantraniliprole at the peak of 2nd instars larva resulted in 95.2% pest control efficiency and 83.6% leaf protection efficiency after 7 days;however,when the spraying stage was changed to the peak of 3rd inst...
Keywords:Chlorantraniliprole  Cnaphalocrocis medinalis Guenee  Control efficiency  Optimum spraying stage  
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