在批林批孔和农业学大寨运动推动下,广东海南行政区定安县委和龙门坡公社党委带领广大干部和群众大干社会主义农业,建设龙门坡万亩甘蔗基地,形势一片大好,甘蔗长势喜人。今年初,该地发生了严重的甘蔗病害,我们到发病区进行了调查。经鉴定,主要为害的是褐条病,还有少量的褐斑和黄斑病。现将调查情况和分析意见综合如下。一、甘蔗病害概况褐条病在该地蔓延很快,今年二月中旬才在龙门大队经济作物场二十七亩蔗地上发现,后来各地也先后发现一些小的发病中心,不到二个月便扩展开来。到调查时严重的有159亩,较严重的有770亩,开始发病的估计也有3,000亩。受害严重的,心叶有明显红色病 Under the approval of the Pokfulam and the Dazhai Agricultural Movement, the CPC Committee of Dingan County and Longmenpo commune in Hainan’s administrative region of Guangdong led cadres and the masses in socialist agriculture and built a 10,000-mu sugar cane base in Longmenpo. . Earlier this year, a serious sugarcane disease occurred in the area and we went to the area where the disease was investigated. Identified, the main damage is brown streak, but also a small amount of brown spots and maculopathy. Now the survey and analysis of the views are as follows. First, the sugarcane disease overview Brown streak spread rapidly in the area, in mid-February this year in the gantry brigade economy crop field 27 acres of sugarcane found, and later also found some small centers around the country, less than two months Will be expanded. To investigate a serious 159 acres, more severe 770 acres, the onset of the disease is also estimated there are 3,000 acres. Seriously affected, the heart leaves have obvious red disease