After infected by S. solani, the rotten buds, diseased seedlings, rotten stalks of flowers, and white-spikes of dry plants appeared during the reproductive stages. Brotten bud browning, after the buds dead and rot, can not be unearthed; diseased seedlings died in the 3-4 leaf stage, initially only the first leaf sheath is gray in the middle, surrounded by brown lesions, after no new leaves can be extracted The diseased seedlings were withered; the flower stalks rotten stems formed intermediate gray on the leaf sheath of the base, and the edges were light brown mottled lesions. After the lesions were fused, the base of the stem was mottled and stalked; After the stem wall, the middle grayish-brown and brownish near-circular or elliptic eye-spots are formed, resulting in dehydration and necrosis of the stem wall. Finally, the diseased plant will die due to lack of nutrients and water supply, resulting in the formation of dry and white spikes.
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