1985年新疆兵团农六师垦区西瓜、甜瓜在7月份出现了植株成片死亡的现象,个别地块死亡率高达60％,检查结果为一种根部病害。在该垦区,造成西瓜、甜瓜根部病害的病原大多有Fusarium、Phytophthora、Mycosphaerella,而且发病部位主要在根基(颈)或靠近地面的根部。1985年发生的根病,田间诊断拔出病株,根部完好,维管束不变色,深挖根部才发现受害部位在根尖和深层根 1985 Xinjiang Corps Nongliuli reclamation area watermelon, melon in July there was a phenomenon of plant deaths, the individual block mortality rate as high as 60%, the test result is a root disease. In the reclamation area, most of the pathogen causing watermelon and melon root diseases are Fusarium, Phytophthora, Mycosphaerella, and the main part of the disease is found in the roots (neck) or near the ground roots. Root disease occurred in 1985, the field diagnosis of diseased plants, the root intact, vascular bundle does not change color, dig deep roots only to find the affected parts in the root tip and deep roots