松兰山景区松材线虫病综合治理研究

研究分析了浙江宁波市象山松兰山景区松材线虫病发生规律与防治效果。结果表明：只采取“封锁”措施，会使松材线虫病迅速爆发毁灭全林。从1992年到1998年，松兰山枯死松树从6株增到5893l株，增长了9820．8倍；采用皆伐松林防治松材线虫病并改造成板栗、杨梅的方法，会导致逆向演替，使松林最后成为以疏花野青茅为主的荒山。而采取综合防治措施就可有效地控制松材线虫病的危害。从1998年到2002年，松兰山枯死松树下降到137株，缩小了430倍，使松兰山仍然保持着葱郁的松林群落。

Practice and effectiveness of integrated control to pine wilt disease in the scenic pine forest

This paper has made an induction from pine wilt disease occurence regularity and integrated control effect in the scenic pine forest of Xiangshan county,Ningbo City,Zhejiang Province.The result shows PWD will spread quickly with only measures of closing hillsides,hereby from 1992 to 1998,the dead pine trees increase from 6 to 58 931 and that PWD will be pressed down annually with the integrated control methods,thereby from 1998 to 2002,the dead pine trees decrease from 58 931 to 137.But the methods by clearing up all pine trees will lead to the inverse succession from pine forest into barren hill.