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在马尾松毛虫综合防治工程中,“狠抓虫源地,围剿老虫窝”是极为重要的一环。掌握马尾松毛虫虫源地,了解其不同发生地带和种群消长规律,是搞好虫情测报与防治工作的基础。马尾松毛虫虫源地的形成条件如何?具有哪些边界特征呢?笔者自1981年开始,在宜春地区深入8县1市、57个乡、320余个自然村,对75万亩不同类型的马尾松毛虫发生区域进行了调查,总结了虫源地的形成条件及其边界特征,现提出供基层森保人员参考。
In the Masson pine caterpillar integrated control project, “Pay close attention to the source of insects, encircle the old insect nest ” is an extremely important part. Mastering the origin of the caterpillar-like pine caterpillar and understanding the law of its occurrence and population fluctuation are the basis for doing a good job in forecasting and controlling insects. What are the characteristics of the formation of Dendrolimus punctatus? What boundary characteristics are there? Since 1981, the author has 8 villages and 1 city, 57 townships and more than 320 villages in Yichun area. There are 750,000 mu of different types of masson pine Caterpillars occurred in the area were surveyed to sum up the formation of insects and the boundary conditions of the characteristics are now proposed for the grass-roots forest security personnel reference.