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杨干透翅蛾(Sphecia siningensis)是一种危害杨树的毁灭性蛀根害虫,在我省榆林沙区分布广泛,危害严重。70年代屈秋耘同志曾对此虫进行过系统研究,我们在此基础上,主要根据该虫在树干基部危害孔洞内化蛹的习性,于化蛹初期在树干基部培土30～40cm,以阻止成虫羽化飞出。由于该虫
Sphecia siningensis, a devastating ectoparasitic pest that damages poplar, is widely distributed in Yulin sandy area of our province and endangering serious damage. In the 1970s, Comrade Qu Qiu-yun conducted a systematic study on this pest. Based on this, we base on the habit of damaging the pupal habitat inside the hole at the base of the trunk. During the early period of pupation, we cultivate the soil at the base of the trunk by 30-40cm to prevent emergence of adults Fly out. Due to the bug