葡萄套袋可以减少果实病虫害,降低果面污染。若在采前15天左右去袋,可促进果实着色,果皮细嫩艳丽,提高葡萄品质;若不去袋,则可延迟采收,调节果实成熟期,提高商品价值。1.果实袋的选择目前有很多厂家生产葡萄专用袋,可以购进使用。如果没有条件购进,可以自制葡萄袋,方法是利用废旧报纸或 Grapes bagging can reduce fruit pests and diseases, reducing fruit pollution. If the bag is about 15 days before the harvest, can promote the fruit coloring, skin delicate and beautiful, improve the quality of the grape; if not to the bag, you can delay the harvest, regulate the fruit maturity and improve the value of the commodity. 1. Selection of fruit bags There are many manufacturers of grape-specific bags, you can purchase use. If you do not have the conditions to buy, you can homemade grapes, the method is to use waste newspapers or