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果树病虫害防治是果树生产中的重要环节之一,为了减少和避免病虫危害,降低生产成本,特将果树病虫害防治的最佳时期等介绍如下,供广大读者参考。1.病虫发生初期一般病虫的发生分为初发、盛发、末发三个阶段,病害应在初发阶段或发病中心尚末蔓延之前进行防治,虫害应在发生量小尚
Pest control of fruit trees is one of the most important aspects in fruit tree production. In order to reduce and avoid pests and diseases and reduce production costs, the best time for prevention and control of pests and diseases of fruit trees is described below for reference of readers. 1. Pest occurrence The general incidence of pests and diseases are divided into initial stage, Shengfa, the end of the three stages of disease should be in the initial stages of disease or center of disease before the spread of prevention and control, pests should be small