【摘要】 春尺蠖卵 4月上旬开始孵化 ,整个卵的孵化进度呈明显的逻辑斯蒂曲线。该虫的防治适期是4月 1 0— 2 5日 ,最佳防治时间是 4月 1 5— 2 0日 ;2 5 %灭幼脲Ⅲ号悬浮剂、Bt( 1 60 0 0IU/mg)可湿性粉剂、春尺蠖核型多角体病毒制剂 3种生物制剂采用飞机低容量喷雾可收到较好的防治效果更多还原

【Abstract】 The egg-hatching of Apocheima cinerarius took place in the first ten-days of April.A Logistic equation was fitted according to the whole hatching processing.The control period was April 10-25 while April 15-20 was optimum.Good control effect was obtained with aerial LV spray of three agents including 25% chlorbenzuron SC,Bt(16 000 IU/mg)WP and (AciNPV).更多还原