黑龙江省是我国林业大省 ,同时也是森林病虫害的重灾区。森林病虫害是我省的主要自然灾害之一 ,它的危害性和毁灭性远超于其它森林灾害 ,直接威胁我省造林绿化成果的巩固和发展 ,破坏防护林的生存和森林资源的持续经营 ,影响森林生态效能的发挥 ,已成为制约我省林业和经济可持 Heilongjiang Province is a major forestry province in China, and is also the hardest hit by forest pests and diseases. Forest pests and diseases are one of the main natural disasters in our province. Their harmfulness and destructiveness far exceed those of other forest disasters. They directly threaten the consolidation and development of afforestation achievements in our province, undermine the survival of shelterbelts and the continuous operation of forest resources, The effective use of forest ecology has become a constraint to forestry and economy in our province