番茄枯萎病(又称萎蔫病),近年来呈发展趋势,是有潜在危险的一种病害。仅危害番茄。 一、症状表现 一般在植株开花结果后开始显病。初期植株下部叶片萎蔫,变褐干枯,但不脱落。症状自下而上缓慢扩展,常使主茎一侧叶片变褐枯死,而另一侧则正常生长,故称“半边枯”。剖视病株叶柄及果梗,可见维管束变褐色。在潮湿环境下,病株茎基部表面产生 Tomato Fusarium Wilt (also known as wilt disease), in recent years showed a trend of development, is a potentially dangerous disease. Only harmful to tomatoes. First, the symptoms usually begin to show signs of disease after the plants have flowered. Lower leaves of the initial plant wilting, brown dry, but not fall off. Slow expansion of symptoms from bottom to top, often make the main stem brown side of the leaves withered, while the other side of the normal growth, so called “half dry.” Cut the petiole and pedicel stalk, visible vascular bundle brown. In wet conditions, the diseased stem base surface is produced