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春尺蠖分布广,食性杂,而且暴食性强。是危害果林和桑树叶的主要害虫之一。81年春,我场由于防治不及时,600多棵盛果期的香梨大树叶被春尺蠖吃光。利用化学防治虽能控制春尺蠖的危害,但春尺蠖的幼虫大量发生期也正是香梨,苹果等树的盛花期,此时喷农药,不但要伤害传粉昆虫,而且用药浓度掌握不当还会造成大量落花影响产量。
Spring 蠖 蠖 wide distribution, food miscellaneous, and binge strong. It is one of the major pests that endanger fruit trees and mulberry leaves. Spring of 81, my field due to prevention and treatment is not timely, more than 600 trees Sheng pear large leaves were eaten by spring feet. Although chemical control can be used to control the harm of the spring plover, but the large-scale occurrence of spring plover larvae are fragrant pear, apple and other trees in full flowering, spraying pesticides at this time, not only to harm pollinators, but also to master the drug concentration will not Causing a large number of falling flowers affect the yield.