稻飞虱是我省水稻四大害虫之一,近几年来的危害大大超过螟虫,已成为头等害虫。其中褐稻虱、白背稻虱、灰稻虱为优势种,但造成大面积灾害的主要是褐稻虱。特别是对双季晚稻的危害大,常导致毁灭性的灾害。根据国内外经验,采用抗虫品种结合合理使用药剂,是防治褐稻虱一种经济有效 Planthopper is one of the four major pests of rice in our province. In recent years, the harm greatly exceeds that of stem borers and has become the first-rate pest. Among them, brown planthopper, white back planthopper and gray planthopper were the dominant species, but the main cause of large-scale disasters was brown planthopper. Especially for the double crop late rice damage, often lead to devastating disaster. According to domestic and foreign experience, the use of insect-resistant varieties combined with the rational use of pesticides is a cost-effective control of brown planthopper