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一、目的和依据桃小食心虫为我省苹果、梨、山楂、枣等果树的重要害虫,各地发生代数不同且为害时期较长,这就给防治上带来了一定的困难。因而,常因防治不当,蔓延成灾,造成生产损失。为明确桃小食心虫在不同寄主上发生的代数、其为害习性以及树种间有无相互交替发生为害的趋向,因此进行有关桃小食心虫生物学特性方面的研究。为制订测报方法、指导田间适期防治和为生态研究提供科学依据。
I. Purpose and Basis Peach Mungbean is an important pest of fruit trees such as apple, pear, hawthorn and jujube in our province. Algebraic differences occur in different places and the damage period is long, which brings some difficulties in prevention and control. Therefore, often due to improper control, spreading disaster, resulting in loss of production. In order to clarify the algebra occurred on different hosts of peach moth, the pest habits and the tendency of each species to alternate with each other occurred. Therefore, the biological characteristics of peach moth were studied. In order to formulate the method of measuring and reporting, to guide the proper prevention and control of the field and provide a scientific basis for ecological research.