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有色二孢属菌颈腐病(有色二孢属菌病,颈腐),在美国南部花生产区间隔性的严重发生。据报导南非、澳大利亚、委内瑞拉、以色列都有此病发生。这种致病菌广泛分布于世界各国,腐生或寄生在多种作物上。D·gossypina能使花生种子产生病害(种仁内部病变),亦可侵染柑桔、甘薯、桃、紫苜蓿、茶。 Garren与Wilson在未鉴定病原前定的普通名称叫“颈腐”(Collar rot)。他们认为是一种真菌所致的病害。他们认为冠腐病不是美国花生的主要病害,颈腐病在前几年已有发生。1965年美国花生因颈腐病和冠腐病减产1％。报导说,严重的地方减产25—50％
Coccidioidomycosis (Corynebacterium tumefaciens, neck rot) occurs intermittently in the flower-producing area of southern United States. It is reported that South Africa, Australia, Venezuela, Israel have this disease. This pathogen is widely distributed in all countries in the world, saprophytic or parasitic on a variety of crops. D. gossypina can cause peanut seeds to suffer disease (internal disease of kernels), and can also infect citrus, sweet potato, peach, alfalfa and tea. Garren and Wilson in the unidentified pathogen known under the common name “neck rot” (Collar rot). They consider it a fungal disease. They think the crown rot disease is not the main peanut disease in the United States, and the neck rot disease has occurred in previous years. 1965 American peanut cut due to neck rot and crown rot 1%. The report said that serious local production cuts 25-50%