大豆灰斑病(Cercospora Sojina Hara)又称蛙眼病,1915年首先在日本报道,现已遍布美国、巴西、中国、日本等主要大豆产区。我国黑龙江、吉林、辽宁、河北、山东、安徽、江苏、福建、四川、广西等地均有此病为害。病原真菌属半知菌类,为害大豆子叶、叶片、茎、荚及籽粒,叶片上病斑灰褐色、园形、周围有狭窄的暗褐色边缘 Cercospora Sojina Hara, also known as frog eye disease, was first reported in Japan in 1915 and is now found in major soybean producing areas in the United States, Brazil, China, and Japan. China’s Heilongjiang, Jilin, Liaoning, Hebei, Shandong, Anhui, Jiangsu, Fujian, Sichuan, Guangxi and other places have the disease damage. Pathogenic fungi are semi-known fungi, damage to soybean cotyledons, leaves, stems, pods and seeds, leaf spot grayish brown, park-shaped, surrounded by a narrow dark brown edge