水稻黄化萎缩病是我省部份地区近年来出现的一种新的病害。一九七四年在昆明西山区海联公社,官渡区龙泉公社普遍发生为害,其中发病较重的团山大队后所生产队—带病株率达36.6—78.2％,病穴率80—94％。桃园大队病株率13.7—24.4％,病穴率48—66％。此外,在大理凤仪地区发病较重的面积约1000余亩。嵩明县杨桥公社新庄大队第三、六生产队发生面积300多亩,其中有120亩病株率高达70—80％。对稻谷生产造成很大危害。为了引起省内各地在生产上的注意,加强对此病的防治工作,现根据前人 Yellowing of rice atrophy is a new disease in some parts of our province in recent years. In 1974, Kunming Xishan District, the United Township, Longquan commune Guandu District widespread damage, including the incidence of heavier production team after the regiment Brigade - diseased plants rate of 36.6-78.2%, disease points 80-94 %. Taoyuan brigade strain rate of 13.7-24.4%, disease point rate of 48-66%. In addition, Dali Fengyi area incidence of heavier area of ​​about 1,000 acres. Yangming commune Songming County commune Xinzhuang Brigade third and sixth production team occurred an area of ​​300 mu, of which 120 mu strain rate as high as 70-80%. Cause great harm to rice production. In order to arouse the attention in the production throughout the province and to strengthen the prevention and control of this disease,