花生青枯病一般于初花期开始发病,从子房入土不久,果荚正在形成时发病最重,直至收获期还陆续发生为害。病株初期表现失水,早上延迟开叶,下午提前闭叶,与正常植株比较,相差1～2小时,以后顶叶先萎蔫,继而枝叶全部萎蔫下垂。剖茎检查,可 Peanut bacterial wilt generally begins at the first flowering stage. Soon after the pistils are invaded from the ovary, the most severe disease occurs when the pods are being formed, and the harms continue to occur during the harvest period. Initial manifestation of diseased plants dehydration, delayed opening in the morning leaves early leaves in the afternoon, compared with normal plants, a difference of 1 to 2 hours after the top leaves first wilt, then all the wilting foliage. Sectional examination can be