农历二、三月间,正是各地生姜种植季节,此时,要注意防止两种姜病的发生(农民称姜瘟).一是软腐病,该病属细菌性病害,病原菌在土壤中及根茎内越冬.在土中可存活二年以上;传染途径主要是土地及种苗带病,通过水流及地下害虫传播,肥料也能传病,每年“小满”至“大暑”期间发病较重.其症状先是基叶凋萎,后变鲜黄,叶片萎缩,根呈水渍状,切开姜的根块有乳白色液体流出,由心烂向皮.二是姜腐病,病状与软腐病相似,不同的是它由表皮烂入中心. Lunar February and March, it is all around the ginger planting season, at this time, we should pay attention to prevent the occurrence of two kinds of ginger disease (peasants called ginger blast.) First, the soft rot disease, the disease is a bacterial disease, pathogenic bacteria in the soil And winter in the rhizome. In the soil can survive for more than two years; the main route of infection is the land and seedlings disease, spread through water and underground pests, fertilizer can also be transmitted disease, “Xiaoman” to “big summer” Its symptoms are first withered basal leaves, after the change becomes bright yellow, leaf atrophy, root was water-like, cut ginger root block milky white liquid outflow from the heart rot to the skin. Second is ginger rot disease and soft rot The disease is similar, the difference is that it is rotten from the epidermis into the center.