苹果树、梨树生长后期的病虫害防治进入九、十月份，各种病虫的为害有明显下降的趋势，苹果和梨树皮腐烂病已停止扩展，早期落叶病已不再侵染新的叶片，螨类害虫已在树干老翘皮等处越冬，桃小食心虫和梨小食害心虫类幼虫已陆续脱果，蛀果晚的幼虫仍在果内为害，直至果实采... Pest control in the late growth stage of apple trees and pear trees entered into decline in September and October. The damage caused by various diseases and pests decreased obviously. The rot of apple and pear bark had stopped expanding. Early deciduous diseases were no longer infected with new leaves , Mite pests have been overwintering in the trunk of the old Alice skin, Peach Gourd pears and pear snacks heart pest larvae have been decolouration, borers late fruit larvae are still harmful, until the fruit is taken ...