黄麻黑枯病在国內未見报导。作者于1963年8月在肖山棉麻場的龙溪长果种黄麻(Corchorus olitoris L.)上第一次发現。1963—64年調查余杭、海宁、肖山及杭州郊区等地的长果种和园果种黄麻(C. cupsularis L.),也发現有另星发生。发病率最高者虽仅0.1％左右,但被害麻株极易迅速枯死,为害性較大,值得引起注意。症状:本病发生于8月上、中旬,为害部位最初在腋芽或側枝基部和茎基部,主茎的节间或分枝上偶而也有。病斑初为浅褐色小点,后逐漸向 Jute black blight has not been reported in China. The author first discovered in August 1963 at the Corchorus olitoris L., a Longxi long-fruit jute plant in Xiaoshan Cotton Field. 1963-64 investigation Yuhang, Haining, Xiao Shan and Hangzhou suburbs and other places of fruit and fruit species jute (C. cupsularis L.), also found another star occurs. Although the highest incidence of only about 0.1%, but the victim numbe easily die quickly, more harmful, it is worth attention. Symptoms: The disease occurred in August, mid, damaging parts initially in the axillary buds or collateral basal and stem base, occasionally on the main stem internodes or branches. Lesions initially light brown dots, then gradually