论文部分内容阅读
天牛是我区林木、果树的主要钻蛀性害虫之一,近年来发生普遍,为害渐趋严重。经林果病虫害普查,果树钻蛀株率36—70％,严重的果园高达90％以上,以苹果树、桃树为高。林木钻蛀株率27.6—97.8％,以毛白杨、桑树为高。剖析观察为3—11头/株。以筒天牛属为主的钻蛀性害虫、危害枝干木质部,往往一两条天牛,即可把几年甚至几十年生的大树致死。为探索简便易行,经济有效的防治方法,我们从一九八四年——一九八六年进行了以自制毒签为主的多种农药防治试验,找
Cerambycidae is one of the major tree-boring pests of trees and fruit trees in our district. It has become widespread in recent years and the damage becomes increasingly serious. The survey of pests and diseases by fruit trees, fruit trees borers rate of 36-70%, serious orchards as high as 90% or more, with apple trees, peach trees high. Wood borers plant rate of 27.6-97.8%, with white poplar, mulberry trees high. Analysis of observations for the 3-11 head / strain. In order to cuttlebone predominantly borers pests, endanger the branches of the xylem, often one or two days of cattle, you can put a few years or even decades of trees to death. In order to explore an easy and cost-effective method of prevention and treatment, we conducted a series of pesticide control trials focusing on self-made poisoning from 1984 to 1986,