泽州县红脂大小蠹生物学特性研究

红脂大小蠹（Dendroctonus valens）是我国重要的外来入侵生物，属国家检疫性害虫之一。红脂大小蠹在山西省泽州县分布于伊候山林场、巴公镇、大阳镇，寄主植物有油松、白皮松、华山松。该虫在泽州县1a发生1代，以成虫和幼虫以及少量的蛹在树干基部或根部的皮层内越冬；采取性诱、化学防治、伐除虫害木、检疫、生物防治、营林等技术进行了防治，防治效果达80％以上，虫株率可控制在1％以下。

Study on the Biological Characteristic of Dendroctonus valens in Zezhou of Shanxi

As one of national quarantine pests, Dendroctonus valens is an important invasive alien species in china. The pest distributed in Yihoushan Forest Farm, Bagong Town, Dayang Town of Zezhou of Shanxi, the host-plant of the pest are Pinus tabulaeformis, Pinus bungeana, Pinus armandii. The pest occurs 1 generation in a year in Zezhou, hibernates by larvae, adult worm and a spot of pupa in the cotex of truck＇ basal part or the root part of tree. The pest can be controlled by sexual attraction, chemical method, removing the infected plants, quarantine, biological control, planting forest etc, and the effect of prevention reached 80%, the percentage of insect-infected trees was lower than 1%.