一、套袋的作用 １、防治果实病虫害（轮纹病、炭疽病、煤污病、食心虫等）：主要体现在两方面一是物理作用防治，即隔离防治二是化学作用防治，果实袋通常都经过药物处理，有驱虫、防菌效果。 ２、可提高果面光洁度：一是可减少尘土及环境污染；二是减轻枝叶磨痕和冰雹袭击； First, the role of bagging 1, the prevention and control of fruit pests and diseases (rotten, anthracnose, coal disease, moth worms, etc.): mainly reflected in the two aspects of the first physical effect of prevention and control, the second is the prevention and control of chemical isolation, fruit bags usually After drug treatment, deworming, anti-bacterial effect. 2, can improve the surface finish: First, reduce dust and environmental pollution; second is to reduce the branches and leaves marks and hail attacks;