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果树生长后期的病虫害防治进入９月，各种病虫的危害有明显下降的趋势，苹果树皮腐烂病已停止扩展，早期落叶病已不再侵染新的叶片，山楂叶螨已产生越冬型成螨，苹果叶螨产生越冬卵，桃小食心虫第二代幼虫已陆续脱果，蛀果晚的幼虫仍在果内危害，直至果实采收后才脱果，大...
Pest and disease prevention and control in the late growth stage of fruit trees entered into September, and the harm of various pests and diseases dropped significantly. The bark disease of apple bark stopped expanding. Early leaf deciduous disease was no longer infected with new leaves. Adult mites and apple spider mites produce overwintering eggs. The second generation larvae of peach moth have been decoloused one after another, and larvae of late peach fruit are still endangered in the fruit until the fruits are harvested.