【摘要】 田间试验结果表明，在甜菜夜蛾低龄幼虫高峰期，１０％氯氰菊酯乳油８００、１０００、１５００倍液对甜菜夜蛾药后１天的防治效果达８９％以上，药后５天达９８％以上。该药剂田间使用以１５００倍液为宜。更多还原

【Abstract】 The result of field trials showed that cypermethrin gave good control against Laphygma exigua H.during the peak stage of young larvae ,with dilution of 800,1000 and 1500 times the control effects were over 89% one day after treatment,and over 98% after five days ,respectively.It is suitable to use 1500 times diluents in the field.更多还原