水稻稻曲病属真菌性病害,只在水稻穗部发生,为害单个谷粒,病菌在颖壳内生长,形成直径1厘米左右近圆球形的“稻曲”,代替米粒,一般一穗有一至数粒受害,也有多到十几粒、甚至数十粒的。起初“稻曲”很小,以后撑开内外颖自合缝处外露,将整个花器包裹起来,表面光滑,外被薄膜,逐渐向两侧膨大成稍扁平的球形,大于谷粒数倍。薄膜随稻曲的 Rice false smut is a fungal disease, occurs only in the ear of rice, damage to a single grain, the bacteria grow in the glume shell, the formation of a diameter of about 1 cm near the ball-shaped “rice song”, instead of rice, usually a spike A few grains of victims, but also to more than a dozen tablets, or even dozens of tablets. At first, “rice song” is very small. Afterwards, the inner and outer Yings are exposed from the seams. The entire flower is wrapped and the surface is smooth. The outer membrane is gradually expanded to a slightly flattened spherical shape on both sides, which is several times larger than the grain. Film with rice song