0.5%辣椒碱EW防治花椰菜菜青虫田间药效试验

Field Efficacy of 0.5%Capsaicin EW on Controlling Cauliflower Caterpillar(Pieris rapae)

[目的]考察辣椒碱EW防除花椰菜菜青虫的效果。[方法]开展田间药效试验。[结果]0.5%辣椒碱EW商品量1500~2250 mL/hm^(2)(有效成分用量7.5~11.25 g/hm^(2))在花椰菜田中防治菜青虫效果较好,施用时应均匀周到。[结论]结果为辣椒碱EW的推广应用提供了依据。

[Objective]To investigate the control effect of capsaicin EW on Pieris rapae.[Methods]The field efficacy test was carried out.[Results]The commercial amount of 0.5%capsaicin EW was 1500~2250 mL/hm^(2)(effective ingredient dosage was 7.5~11.25 g/hm^(2)),which had better control effect on Pieris rapae in Cauliflower Field.[Conclusion]The results provide a basis for the popularization and application of capsaicin EW.