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水稻恶苗病一般又叫做“公稻子”、“白杆”,它是水稻的主要病害之一。秧田发生恶苗病时,病秧淡黄,叶片狭长,明显徒长,稻根发育不良。检查秧田里枯死的苗时,在近地面的茎部总是隐约见到有粉白色的粉状物。插秧后,病株茎节向上、下生出须根。后期的病株茎基部的叶鞘、茎秆上生出松散或群聚的兰黑色小粉点,这就是恶苗病菌产生的有性世代——刁囊壳。而病株上粉白色粉状物,则是它的无性世代。
Rice Bakanae is also commonly called “male rice” or “white bar”, which is one of the major diseases of rice. Seedling disease occurs when the disease, yellow seedling disease, long and narrow leaves, obviously leggy, rice stunted dysplasia. Check dead seedlings in the seedling when the stem near the ground is always vaguely see the powder white powder. After transplanting, the sick plant stems up and down, giving birth to fibrous roots. Post-diseased stems at the base of the leaf sheath, stalk orchid loose clusters of small black powder, which is a sexual generation of Fungi germ generation - Diao capsule shell. The diseased plants on the powder white powder, it is asexual generation.