七、八月份是苹果树保叶、保果、保花(芽)的关键时期,也是红蜘蛛为害落叶严重、果实熟前速长、花芽分化盛期。管理的好坏不仅关系到当年的产量与质量,而且也关系到来年的产量。因此,必须重视此期的技术管理。 July and August are the critical period for protecting the apple tree leaves, preserving fruits and preserving the flowers (buds), and the red spider is also heavily detrimental to deciduous leaves. Management is not only related to the quality of the year’s production and quality, but also related to the coming year’s production. Therefore, we must attach importance to this period of technical management.