江西农业学报Issue(11)：83-85,3.
醚菊酯与吡蚜酮复配对褐飞虱的增效作用和控制效果
Synergism and Control Effect of Mixtures of Ethofenprox and Pymetrozine on Nilaparvata lugens
摘要
Abstract
The indoor toxicity test results showed that:the mixture of Ethofenprox and Pymetrozine (1∶2, mass ratio) had LC50 value 2.89 mg/L to the third instar nymphs of brown planthopper (Nilaparvata lugens), and their co-toxicity coefficient was 146. 84, with obvious synergism .Field test results showed that applying 21%Ethofenprox · Pymetrozine SC 375, 525 mL/hm2 had the control effects of 84.19%and 90.37%respectively against the nymphs of brown planthopper on the 3rd day after spraying , which were better than that of Ethofenprox and Pymetrozine; applying 21% Ethofenprox · Pymetrozine SC 375 ~525 mL/hm2 had the control effect of over 87.00%against brown planthopper from the 7th to 14th day after spraying, it was very significantly better than that of Ethofenprox and Pymetrozine , and this mixture had no adverse effects on rice growth .Therefore, the recommended dosage of 21%Ethofenprox · Pymetrozine SC should be 375 mL/hm2 , but it could be increased to 525 mL/hm2 in outbreak year .关键词
醚菊酯/吡蚜酮/褐飞虱/防治效果Key words
Ethofenprox/Pymetrozine/Nilaparvata lugens/Control effect分类
农业科技引用本文复制引用
束兆林,缪康,赵来成,邱晓红,何东兵,姚克兵..醚菊酯与吡蚜酮复配对褐飞虱的增效作用和控制效果[J].江西农业学报,2013,(11):83-85,3.基金项目
江苏省镇江市农业科技攻关项目（NY2010021）。 （）
