【摘要】 作者于1979～1982年,使用国际通用的Leuang₁₂₅、OB₆₇₇、IET₂₉₁₁、W₁₂₆₃、PTB₂₁、Muey Nahng₆₂M等六个鉴定种和TN₁感虫对照种,选择广东省的封开、梅县、信宜、惠阳、潮安、南海、韶关、花县、东莞等16个点的稻瘿蚊,按国际稻瘿蚊抗性鉴定标准,进行了生物型鉴定。经连年多世代验证其抗（R）感（S）反应结果,花县、从化、韶关、东莞4个点R.R.R.R.S.S.反应定为中国Ⅰ型;南海、三水、新会、中山、番禺、惠阳、潮安7个点R.R.R.S.S.S.反应定为中国Ⅱ型;连山S.S.S.R.S.S.反应定为中国Ⅲ型;封开、信宜、梅县、五华4个点S.S.S.S.S.S.反应定为中国Ⅳ型。其中以Ⅱ型分布最广,Ⅰ、Ⅳ型次之,Ⅲ型最少。Ⅲ、Ⅳ两个生物型,目前国内外尚未见报道。此外鉴定了一些对四个不同生物型具有不同抗性的资源品种。更多还原

【Abstract】 Gall midge is one of the most serious and widely distributed insect pests of rice in South China.According to the screening of gall midge resistant varieties,conducted in 1979-1983 the writers observed different reaction of varieties at different sites,suggesting the existence of gall midge biotypes. A technique for mass rearing of gall idge has been developed.Adults are coll ected from the overwintering generation infesting wild host plant （Leersia exandra）and also from infested rice at different sites.The damaged plants are placed in pots covered with cages for symptom development.The adults are collected from the silver shoots for identification.The differential varieties were Leaung₁₅₂,OB₆₇₇,IET₂₉₁₁,W₁₂₆₃,PTB₂₁ and Muer Nahng 62M from IRRI.The differential varieties were tested at Huaxian,Songhua, Zhaozuan,Dongwan,Nanhai,Sanshui,Xinhui,Zhongzan,Pengyu,Huiyang,Chaoan.Lianshan,Fenkai,Xinyi,Melxian,Wuhua,16 representative localities in Guangdong province.Different reaction at different locations were observed.Experiments were repeated for many times every year,the results indicated that at least four biotypes are present ths province.The biotypes are classified based on varietal reaction.China biotype Ⅰ（Huaxian Song hua,Zhaozuan,Dongwan）Leaung₁₅₂,OB₆₇₇,IET₂₉₁₁,W₁₂₆₃,PTB₂₁and Muey Nahng 2M,indicatedby R,R,R,R,S,S;China biotype Ⅱ（Sanshui, Xinhui,Zhongzan,Pengyu,Huiyang,Chaoan）indicatedby ,R,R,S,S, S, S;China biotype Ⅲ（Lianshan）indicatedby S,S,S,R,S,S;and Chins biotype Ⅳ Feokai,Xinyi,Melxian,Wuhua)indicatedby S,S,S,S,S,S.更多还原