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一、凤梨搞是真菌病。在大多数蔗糖国家和我国各蔗区均有发生。本病主要侵染甘蔗种苗,使其不能前发而造成严重损失。由留存在土壤中的病菌或感病种苗及其他感病寄生传播。经种苗两端切口侵入,之后在薄壁组织间迅速蔓延。感病初期种苗切口呈红色,并散发凤梨香味,继而中心薄壁组织被破坏,其内部变空,呈黑色。轻度感病,虽可萌发生长,但生长势弱,病情发展到一定程度,植株死亡。低温、高湿,长期阴雨或过于干旱等不利于蔗苗萌发的因素,均可诱使本病发生。
First, pineapple engage is fungal disease. In most sucrose countries and China’s sugar cane areas have occurred. The disease is mainly infected with sugar cane seedlings, so that it can not be caused before the fatal losses. By the presence of bacteria in the soil or susceptible seedlings and other parasitic diseases transmitted. The seedlings invaded both ends of the incision, followed by the rapid spread of parenchyma. Early seedling cuttings were red, and pineapple flavor distribution, and then the center of the parenchyma is destroyed, its internal empty, black. Slightly susceptible, although the germination and growth, but weak growth, the disease developed to a certain extent, the plant died. Low temperature, high humidity, long-term rainy or too dry and other factors are not conducive to the seedling germination, can induce this disease.