随着树龄的增长，龙眼树主干、主枝易产生粗皮、翘皮或死皮，为病虫害越冬提供了场所，采取树干涂白、喷药措施，对潜藏在翘皮裂缝中的病虫难以奏效。我所近年来采取对龙眼树干刮皮，对减少病虫源、减轻病虫害有良好效果。现将方法简介如下。１刮皮时间在冬季清园时或早春进行 As the tree grows, the longan tree trunk and main branch tend to produce bark, skins or dead skin, which provides a place for pests and diseases to winter. It is difficult for tree pests . In recent years, I have taken longan skin scraping, to reduce the source of pests and diseases, reduce pests and diseases have a good effect. Now the method is as follows. 1 Skin scraping time in the winter when the Qingyuan or early spring