白杨透翅蛾以幼虫在树干髓部越冬,第二年4月开始活动,防虫时间不能过早或过晚,早防效果不好,晚防易造成对树木严重危害,因此防治时间最好是在幼虫开始活动后的半月之内,即4月中、下旬。用50％的4049原液或5倍液制成药棉球,塞入幼虫侵入孔, Aspen larvae larvae in the trunk of the pith in winter, the second year in April began activities, pest control time can not be too early or too late, early prevention effect is not good, late defensive damage caused by trees can cause serious, so the best prevention and treatment time Within half a month after the larva has started its activity, mid-April and late. With 50% of the 4049 stock solution or 5 times made of cotton balls, larvae into the hole,