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茄子黄萎病(Verticillium dahliae)是土传病害,种子也可以带菌。近年来该病害在京郊为害越来越严重,轻者减产10-30％,严重的达50％以上。为害症状:田间一般多在座果以后发病。初期叶片边缘和叶脉间退绿变黄,逐渐发展到全叶。在晴天中午前后表现萎蔫,夜间或天气凉时恢复正常。数日后不再恢复,病叶由黄变褐,向上卷曲,严重时,病株叶片掉光,剩下茎秆。有时半边发病,半边正常,京郊农民叫它“半边疯”。剖开根部,
Verticillium dahliae is a soil-borne disease and seeds can also be carried. In recent years, the disease is more and more serious in the suburbs of Beijing. The light output is reduced by 10-30% and seriously to over 50%. Damage symptoms: the field is generally more in the post-mortem onset. The initial leaf edge and veins back to green yellow, and gradually developed to the whole leaf. The performance of wilting around the noon on a clear day, normal night or when the weather is cool. A few days later no longer recover from sick yellow leaves brown, up curly, serious, diseased leaves fall out, leaving the stalk. Occasionally half of the disease, half normal, farmers in Beijing suburbs called it “half-crazy.” Cut open the root,