一、黄矮病几个流行因子初析1.媒介黑尾叶蝉发生量因子①我省三种媒介黑尾叶蝉分布的初步统计1976年8月中旬我省18县市测报站寄来灯下黑尾叶蝉标本。经鉴定我省的黑尾叶蝉有普通黑尾、二点黑尾、二条黑尾叶蝉三种,其中普通黑尾叶蝉所占的比例最大,占90.47%,二点黑尾叶蝉次之,占9.44%,二条黑尾叶蝉极少,这次检查只于清流县的标本中检出一头,占0.08%。从初步鉴定看,我省水稻病毒病媒介黑尾叶蝉是以普通黑尾叶蝉占优势,二点黑尾叶蝉较少,二条黑尾叶蝉发生量极少,在传毒上可能作用也不大。②我省黄矮病的“流行区”与媒介黑尾叶蝉的“多发区”关系 First, a few yellow dwarf epidemic of a few prevalent factor 1. Media black-leafhopper occurred volume factor ① three media in our province the preliminary statistics of the distribution of black-leafhopper 1976 August mid-18 counties in our province sent a reporter Under the black leafhopper specimens. After identification of the province of black-tailed leafhopper there are ordinary black-tailed, two black tail, two black-tailed leafhopper three species, of which the largest proportion of common black leafhopper accounted for 90.47%, two black tail leafhopper Of the total, accounting for 9.44%. There are only a few two caudae cicadas. The examination only detected one of the specimens in Qingliu County, accounting for 0.08%. From the initial appraisal, the province of rice virus vector black-leafhopper is dominated by the common black-leafhopper, two-point leafhopper less, two small-leafhopper occurred in very small amount, may be toxic on the transmission Not large. ② The relationship between the “epidemic area” of yellow dwarf virus and the “multiple district” of the black leafhopper