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对各调查点的褐飞虱生物型监测结果表明，云南思茅以孟加拉型为优势种群，成都优势种群已由生物型Ⅰ转为生物型Ⅱ，其余各点均以生物型Ⅱ为优势种群。该虫孟加拉型在广西南宁、灵川，江苏江浦已占有一定的比例，成都尚未发现该型。在抗生物型Ⅱ的品种中，孟加拉型所占的比例上升。模糊聚类结果表明，该虫可分为两大类：云南思茅为一类，广西南宁、灵川、龙州，广东新会、四川成都、湖北九宫山、监利，安徽怀宁、江苏江浦等为一类。
The biotype monitoring results of brown planthopper in each survey point showed that Simao of Yunnan was characterized by the Bengal type, and the dominant population of Chengdu was changed from the type I to the type II, while the other points all took the type II as the dominant species. The insects Bengal type in Guangxi Nanning, Lingchuan, Jiangsu Jiangpu has occupied a certain proportion of Chengdu has not yet found that type. In the anti-biotype II varieties, the proportion of bengal type increased. Fuzzy clustering results show that the insects can be divided into two categories: Yunnan Simao, Guangxi Nanning, Lingchuan, Longzhou, Guangdong Xinhui, Sichuan Chengdu, Jiugongshan Hubei, Jianli, Anhui Huaining, Jiangsu Jiangpu, etc. For a class.