临海棉区为浙江东南沿海连作棉区,棉地前作多为蚕豆,主要害虫有棉蚜、金钢钻、棉铃虫、红铃虫、小造桥虫、红蜘蛛、斜纹夜蛾等。当地对病虫害防治素有苗期狠治、中期少治、后期不治的习惯。这样造成苗期棉蚜严重发生,中期蕾铃期害虫暴发,后期红铃虫激增。 The coastal cotton area is the continuous cotton area along the southeastern coast of Zhejiang Province. The cotton area is mainly made of broad beans. The main pests are cotton aphid, gold steel diamond, cotton bollworm, pink bollworm, small bridging insect, red spider, litura. The local prevention and treatment of pests and diseases known as seedling ruthless governance, less medium-term treatment, the latter part of the habit. This caused a serious occurrence of seedling cotton aphid, mid-term outbreak of bollworm pests, pink bollworm surge.