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最近我们在宜宾地区农科所,给变黄的水稻会诊,从病株症状上初步肯定,该所水稻试验田内的万早4号等4个品种有极少量的水稻黄矮病发生,急需控制,并用黑尾叶蝉作虫传试验,以进一步确诊。为了防治水稻黄矮病在我省的发生蔓延,特将此病在我省的情况作一简介。 1981年省内局部地区水稻黄苗严重,经过两年调查诊断确定米易县、盐边县和仁和区等攀枝花地区为我省水稻黄矮病区,其它为非病区。病区米易县的重病田损失达60％。一、病状病株从心叶或二叶开始显症,病叶先从顶部
Recently, we held a tentative affirmation on the symptoms of diseased plants in the Yichang Agricultural Science Institute to give yellowing rice. There were very few rice yellow dwarf diseases in 4 varieties, such as Wanzao 4 in the rice experimental field, and it was in urgent need of control , And insect test with black leafhopper for further diagnosis. In order to prevent and control the spread of rice yellow dwarf disease in our province, we specially made a brief introduction of the disease in our province. In 1981, some areas in the province had serious yellowing of rice. After two years of investigation, Miyi County, Yanbian County, Renhe District and other Panzhihua areas were identified as rice dwarf epidemic area in our province and other areas were non-ward. The sick area Miyagi serious illness losses of up to 60%. First, the diseased strains from the heart or two leaves began to show disease, diseased leaves first from the top