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杨干透翅蛾是杨树的主要蛀干害虫之一,以幼虫集中为害树干基部,影响树木生长,降低材质,造成大量的风倒木。笔者在观察该虫生物学特性的基础上,选择其生活史中的薄弱环节──蛹期,在干基理土,踩实,阻止成虫羽化。实践证明,这是一种简便易行、投资小、易大面积推广的方法,防治效果可达97%以上。如辅以性诱防治,则效果更好。晋中全区5年来用此法共防治7507hm2次,已基本控制住了该虫的大面积为害。
Yang dry moth is poplar one of the main bore pests, larvae focus on the damage of the trunk base, affecting the growth of trees, reducing the material, resulting in a large number of wind down the wood. On the basis of observing the biological characteristics of the insect, the author chooses the weak link in the life history ─ ─ pupal stage, in the dry soil, trample solid, prevent adult emergence. Practice has proved that this is a simple and easy, small investment, easy to promote large-scale methods, prevention and control of up to 97%. If supplemented by sexual lure prevention and treatment, the effect is better. In the past five years, Jinzhong has used this method to control 7507 hm2 times and has basically controlled the pests’ extensive damage.