稻飞虱是我省四大稻虫之一,近几年来的发生大大超过螟虫,已成为我省头等害虫。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,对双季晚稻的为害更大,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的综合 Planthopper is one of the four major rice pests in our province, which has greatly surpassed the stem borers in recent years and has become the first pest in our province. Among them, brown planthopper, whitebacked planthopper and gray planthopper were the dominant species. However, the major cause of large-scale disasters is brown planthopper, which is more damaging to double-season late rice and often leads to devastating disasters. According to domestic and foreign experience, the use of insecticidal species combined with the rational use of pesticides is a cost-effective integrated control of brown planthopper