６％密达杀螺颗粒剂防治软体动物效果好软体动物是为害我国农作物的有害生物之一，部分地方螺害日趋严重。全国螺害发生面积约１５００万亩，蜗牛、蛞蝓为害蔬菜是全国普遍存在的问题，华中、华北的小麦和棉花，西南的烟草等作物也同样受到危害；南方的福寿螺为害水稻和水... 6% Mida Dalu granules prevent molluscs good Molluscs is one of the pests harmful to our crops, some parts of the increasingly serious harm. There are about 15 million mu of snail damage in the country, and snails and slugs are the common problems in the whole country. The crops such as wheat and cotton in central and northern China and tobacco in the southwest are also endangered. The southern snails also damage rice and water ...