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松材线虫病是松树最危险的病害之一,在世界上一些国家都有发生并且损失惨重。寄主松树感染松材线虫[Bursaphelenchus xylophiluz(Steiner&Buhrer)Nickle]40天后即可死亡。我国自1982年在南京中山陵风景区首次发现以来,到2000年底,因病枯死的松树达到2000多万株,直接经济损失25亿元,间接损失250亿元。松材线虫侵入寄主(主要是松树)后,在其体内迁移、分布及其引起的寄主内部细胞学、组织学的变化。病害发展过程与致病相关性。
Pine wilt disease is one of the most dangerous diseases of pines and has occurred in some countries in the world and suffered heavy losses. The host pine infected Bursaphelenchus xylophiluz (Steiner & Buhrer) Nickle died within 40 days. Since our first discovery in Zhongshan Mountain Scenic Area of Nanjing in 1982, up to more than 20 million trees died of disease due to dead trees by the end of 2000, with a direct economic loss of 2.5 billion yuan and an indirect loss of 25 billion yuan. After the pine wood nematode invades the host (mainly pine), it migrates and distributes in its body, and changes in the internal cytology and histology of the host. Disease development and pathogenicity.