稻曲病,过去有人叫它“丰年穗”。其实,这是一种误解,它是造成水稻减产的主要病害之一。稻曲病发生在水稻乳熟期穗的谷粒上,不危害茎叶。当水稻破口扬花时,稻曲病菌侵入花器,菌丝体在颖内增殖,只需2～3天,便显现出病粒来。被害的病粒,起初在张开的颖部露出绿黄色块状突起,逐渐膨大包裹着全颖,以后表面龟裂,变成绿褐色丝绒状的稻曲球体。稻曲病多在夏季天气炎热,水稻植株发育丰茂的情况下发病。插秧偏 False false smut, it was called “Feng Nian spike.” In fact, this is a misunderstanding. It is one of the major diseases that cause the rice to cut its output. False smut disease occurs on the grains of paddy rice during maturity and does not endanger stems and leaves. When the rice breeds popularize, the rice false smut germs invade the flower, the mycelium proliferates within the Ying, just 2 ~ 3 days, it will show the grain to come. Patient victims, initially in the open Ying Department exposed green and yellow lumps, gradually swollen wrapped all Ying, after the surface cracks, into a green brown velvety rice song ball. False false smokers mostly in the hot summer weather, the case of rice plants developed abundance of disease. Transplanting partial