1983—1985年我们对山东省11个县20多个多镇的蔬菜、小麦、玉米等作物上发生的蚜虫虫霉种类作了初步调查和鉴定。观察到6种虫霉,其中诺氏虫疫霉在国内尚未见报道。这些虫霉常在春秋两季引起蚜虫流行病,成为自然界控制蚜害的一个重要因素。 From 1983 to 1985, we conducted a preliminary investigation and identification of the species of aphids that occurred on vegetables such as vegetables, wheat and corn in more than 20 towns in 11 counties of Shandong Province. Six species of Helminthosporium were observed, none of which was reported in China. These insects often cause aphid epidemics in spring and autumn and become an important factor in the control of aphids in nature.