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山楂红蜘蛛是我们果园最严重的害虫之一。每年喷药6-7次,到头来,还得造成部分苹果树早期落叶。今年我们改进防治方法,加强综合防治,合理使用农药,加强观察掌握防治适期,取得了既降低成本,又提高治虫效果的初步成效。一、加强人工防治,冬春细刮树皮据观察,出蛰上芽危害的主要是地上部越冬的红蜘蛛成虫。出蛰前集中分布在树干及骨干枝基部的翘皮内。所以,冬季与早春刮树皮,是防治红蜘蛛的第一个关键时期。
Hawthorn Red spider is one of the most serious pests in our orchard. Spraying 6-7 times a year, in the end, have to cause some early deciduous apple trees. This year, we have improved our prevention and treatment methods, strengthened comprehensive prevention and treatment, rationalized the use of pesticides, strengthened the observation and control of the appropriate period for prevention and treatment, and achieved initial success in reducing costs and improving the pest control effect. First, to strengthen artificial control, the spring and spring scraping the bark It is observed that out of the sting on the bud damage is mainly the ground above the winter spider mite adult. Sting out before the focus on the trunk and the backbone of the branches of the skin within the Alice. Therefore, scraping the bark in winter and early spring is the first crucial period to prevent and control red spider.