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柑橘为常绿果树,生长期长,病虫害种类多,全年喷药次数多,易造成抗药性增强,天敌减少,用药成本和农药残留剧增。立冬以后危害柑橘的疮痂病、炭疽病、潜叶蛾、螨类、介类和卷叶蛾等各种病虫都由盛发期进入全面衰退的越冬期,也是各种病虫生活史中的薄弱环节,抓住这一时期采取以农业防治为主,化学防治为辅的综合防治措施,是清除虫源、病源和减轻来年危害的关键手段,对于实现来年柑橘优质高产具有重要的意义。病虫害主要种类及防治指标。柑橘冬季病虫害的主要种
Citrus is an evergreen fruit tree with long growing season, many kinds of pests and diseases, more spraying times throughout the year, easily resulting in increased resistance, decreased natural enemies, sharp increase in drug costs and pesticide residues. All kinds of pests, such as anthracnose, leafminer, mite, serogroup and leaf roller, entered the full-fledged overwintering stage after the winter and became the weakest link in the history of pests and diseases It is of great significance to clear the source of the insect pest and cause of the disease in the coming year and to reduce the danger in the coming year. It is of great significance for the realization of high-yield and high-yield citrus fruits in the coming year. Main types of pests and diseases and their control indexes. Citrus winter pests and diseases of the main species