陕西省龙草坪林区森林害虫发生现状及防控对策

Forest Pests and Diseases in Longcaoping Forest Region

针对陕西省龙草坪林区森林树种单一、病虫害极易暴发问题进行了主要森林病虫害种类及其危害调查,结果为该林区食叶害虫主要为油松毛虫、漆树叶甲、银杏大蚕蛾,分别主要危害油松、漆树和银杏、核桃、板栗等;蛀干害虫主要有华山松大小蠹、云斑天牛,分别主要危害华山松和泡桐、苦楝、青冈、榆、核桃、板栗等;枝梢害虫主要有栎剪枝象,主要危害板栗、茅栗及其它栎类树木。现阶段森林虫害呈现危害逐年加剧、扩散迅速、食叶害虫周期性大发生、经济林木虫害爆发成灾等特点,应采取扩大针阔混交林面积、加强森林病虫害预警监测等措施。

The investigation into the pest damage to forests in Longcaoping forest region identified defoliators like Dendrolimus tabulaeformis,Podontia lutea and Dictyoploca japonica Butler that attack Chinese pines,lacquer trees,gingko trees,walnut trees and chestnut trees,trunk borers like Dendroctonus armandi and Batocera horsfieldi that mainly attack Pinus armandi,Paulownia,Melia azedarach,Cyclobalanopsis glauca,ulmus,walnut and chestnut,and branch-shoot pests like Cyllorhynchites ursulus that attacks chestnut,Castanea seguinii and other oak trees.Corresponding measureswere suggested for monitoring,prevention and control of the pests.