花生褐纹病(Ascochyta,sp)是近几年来在大连地区花生上流行的一种新病害。一般年份花生减产10—20％,严重年份减产40％以上。其为害程度已远远超过了花生褐斑病(Cercospora arachidcola)和花生黑斑(Cercospora personata),成为花生叶部的重要病害,也是花生早期落叶的主要原因。为了弄清此病发生分布的情况,于1982—1983年曾先 Peanut brown spot disease (Ascochyta, sp) is a new disease endemic to peanuts in Dalian in recent years. Peanut production in general 10-20% reduction in severe years, more than 40% cut. Its pest damage has far exceeded that of Cercospora arachidcola and Cercospora personata. It is an important disease of peanut leaf and is also the main cause of early deciduous peanut. In order to understand the distribution of the disease occurred in 1982-1983 first