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近年来,我省林木病虫害日趋严重,据统计,去年全省林木受害面积已由1980年的90余万亩增至650万亩,致使每年平均减少木材60多万立方米。农田林网大量毁坏,枣、核桃等主要经济林木产量低、品质差,不能发挥应有的经济效益和生态效益。当前为害严重的病虫主要有:油松毛虫、光肩星天牛、枣尺蛾、枣疯病、核桃举肢蛾等,对于这些常见多发的病虫早有一些既简单又行之有效的防治办法可循,只要高度重视,认真对待,把它们控制在允许水平以下并不困难,问题是现有的方法至今未被人们切实掌握。为了配合全省林木病虫防治工作的开展,本期特组织林木病虫防治实用技术方面的文章。供各地参考。
In recent years, the pests and diseases of trees in our province have become increasingly serious. According to statistics, last year, the area affected by trees in the entire province had increased from 90 million mu in 1980 to 6.5 million mu, resulting in an average annual reduction of more than 600,000 cubic meters of timber. A large number of farmland forest network destroyed, jujube, walnut and other major economic forest yield is low, poor quality, can not play its due economic and ecological benefits. The current pests and diseases are serious pests: Dendrolimus tabulaeformis, Anoplophora glabripennis, Jujube moth, jujube bark, legume mite and so on, for some of these common pests have some simple and effective prevention and treatment methods can be followed As long as they are given high priority and taken seriously, it is not difficult to keep them below the allowable level. The problem is that the existing methods have so far failed to be effectively controlled by people. In order to cooperate with the province’s prevention and control of forest pests and diseases, this issue of the organization of pest control practical articles. For reference.