果树在整个生长发育期内,都会发生一定的病虫害,病虫害种类和危害程度与果树的品种,生长条件,栽培和管理技术有着很大的关联。通常情况下果树冬季休眠后,病虫害防御能力下降,因此果树冬季休眠时期是全年防治病虫害的重要时期,也是贯彻“预防为主、综合防治”植保方针的重要环节。病虫害的越冬场所多集中在果树的枯枝败叶、翘皮粗皮、剪除切口、树盘土壤中,且病虫害相对较集中,易于消灭,因此在这一时期喷施药剂,省药效果好,在果树冬季休眠时期做好防治病虫害工作的重要措施有保持果园清洁,清除枯枝败叶;刮除翘皮粗皮,剪除病虫枝条;深刨树盘土壤,绑缚塑料薄膜;及时、彻底刮除腐烂病病斑;保护伤口,封闭锯剪口;进行树干涂白,喷布铲除剂等。 During the growth and development of fruit trees, certain diseases and pests occur. The types and degree of pests and diseases are closely related to the varieties, growth conditions, cultivation and management techniques of fruit trees. Under normal circumstances, fruit trees in winter dormancy, pest defensive ability decreased, so the winter dormancy of fruit trees is an important period of pest control throughout the year, but also implement the “prevention-based, integrated prevention and cure,” an important part of the plant protection policy. Pests and diseases overwintering places and more concentrated in the dead branches and leaves of fruit trees, bark, cutting cut, tree soil, and pests and diseases are relatively concentrated, easy to eliminate, so during this period spraying agents, the provincial drug effect is good, fruit trees Winter dormancy do a good job during the prevention and control of pests and diseases are important measures to keep the orchard clean, remove dead branches and leaves; scraping the skin bark, cut off pests and diseases branches; deep planing soil, tied with plastic film; timely and complete cure of rot disease Lesions; protect the wound, closed saw shears; trunk white, spray gunpowder and so on.