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本文报道了西瓜蔓枯病在西瓜不同部位上的症状；病原菌的形态特征毛致病性、生物学特性；种子的带菌率；病菌在种子上和不同环境条件下的病残体上的存活期；温度。雨日、雨量、相对湿度及农业技术中的播种期、播种方式、连作年限、施肥、品种抗病性等与发病的关系。测定了１２种农药对病菌生长的影响，其中以８０％４０２ ４０００倍和７０％ＤＴＭ５００倍液抑菌效果最佳；５０％福美双５００倍和８０％４０２ ４０００倍液是良好的种子消毒剂；７０％ＤＴＭ５００倍、８０％４０２ ２０００倍、５０％速克灵１０００倍和５０％扑海因５００倍液在大田中的防效均超过７０％甲基托布津１０００倍液。
In this paper, the symptoms of watermelon gummy stem in different parts of watermelon were reported. The morphological characteristics of the pathogenic bacteria were characterized by their pathogenicity and biological characteristics. The carrier rate of the seed, the survival time of the pathogen on the sick and the disease under different environmental conditions ;temperature. Rainy days, rainfall, relative humidity and sowing dates in agricultural technology, sowing methods, continuous cropping years, fertilization, variety disease resistance and incidence. The effects of 12 kinds of pesticides on the growth of the bacteria were tested. Among them, the antibacterial effect was best with 80% of the time of 402 4000 times and 70% of the DTM500 times; 50% of the thiram 500 times and 80% 402 4000 times were the good seed disinfectant; 70% DTM 500 times, 80% 402 2000 times, 50% kailing 1000 times and 50% rhabdphine 500 times in the field control effect are more than 70% thiophanate-methyl 1000 times.