沙布袋套葡萄果穗防虫效果好葡萄浆果在成熟期经常遭受二青叶蝉、野蜂和各种蛾类等昆虫吸汁或啃食危害，早中熟葡萄品种尤甚，因而使葡萄果穗脱粒或腐烂，造成不应有的损失。多年来用沙市套袋在葡萄果穗上，有效地防止了各种昆虫的危害。具体方法如下：在葡萄果粒开始着色... Sabourage bag grape grape ear pest control effect Grape berries in the mature period often suffer two leafhoppers, wild bee and various moths and other insects Sui juice or grazing harm, early maturing grape varieties even worse, so that grape berries threshing or decay , Causing undue loss. Over the years with the bagging of sand in the grape ear, effectively prevent the hazards of various insects. The specific method is as follows: In the grape fruit began coloring ...