贝母灰霉病在北疆伊犁、塔城、博尔塔拉、石河子、昌吉和乌鲁木齐等地州贝母种植区普遍发生.本病发生早,流行迅速,为害大,一般鳞茎减产10%,种子减产30%,千粒重下降20%左右.早期发生、流行的田块,常常是全田蕾、花腐烂,植株萎蔫,种子颗粒无收,鳞茎生长停滞.一、症状贝母灰霉病菌可侵染贝母植株地上部任何器官.染病的叶、蕾、花和果实,其尖端或边缘有水渍状、无明显边缘的褪色小斑,病斑迅速扩展相互连成不规则大斑.在高温干燥条件下,病斑失水干枯;在潮湿、多露或阴雨天,染病花蕾常腐烂.花梗、叶柄或茎秆染病后呈现褪色小斑,随后逐渐变成淡褐色梭形病斑,当病斑扩展至绕茎秆或花梗或叶柄一周时,植株病部以上部分便失水而萎蔫.在多雨、结露或高湿条件下,病斑上产 Fritillaria cirrhosa gray mold in the northern Xinjiang Ili, Tacheng, Bortala, Shihezi, Changji and Urumqi and other states Fritillaria growing areas occur early, the disease occurs rapidly, causing great harm, the general reduction of 10% of the bulb, Seed production reduced by 30%, 1000 grain weight decreased by about 20%. Early occurrence, the popular field, often full field buds, flower decay, plant wilting, crop seeds confiscated, bulb growth stagnation. Fritillaria fritillary plant aboveground organs of any infected leaves, buds, flowers and fruits, the tip or edge water stains, no obvious edge of the faded small spots, rapid expansion of lesions connected with each other into an irregular big spot in high temperature In dry conditions, the lesion dehydration withered; in damp, dew or rainy days, flower buds often decay. Pedicel, petiole or stalk after the discoloration of small lesions appeared after the disease, and then gradually become brown fusiform lesions, when the disease Plaque spread to around the stem or pedicel or petiole week, above the diseased part of the plant will lose water and wilting in rainy, dew or high humidity conditions, lesions on the production