６％密达防治海涂棉田蜗牛药效试验余同海戴余有周国军（绍兴市农科所３１２００１）上虞市是我省商品棉基地之一，常年种植８０００多公顷，年产皮棉９０００吨左右。近年来，危害棉花的蜗牛数量剧增，由此造成的损失日益增大，直接影响了棉花的生产。１９９６、１９９７... 6% Midea prevention and control of sea cucumber cotton snail trial Yu Tonghai Dai Yuyou Zhou Guojun (Shaoxing Agricultural Science Institute 312001) Shangyu City is one of the commodity cotton base in our province, perennial planting more than 8,000 hectares, annual output of 9,000 tons of lint. In recent years, the number of snails that threaten cotton has risen sharply, resulting in an ever-increasing loss, which has a direct impact on cotton production. 1996, 1997 ...