Bipolaris maydis, the causal agent of southern corn leaf blight, was inoculated in the greenhouse onto 10 crops and 10 grasses collected from corn fields. Nine crops including barley, Job's tears, oat, rice, rye, sorghum, sugarcane, water bamboo and wheat, and a Gramineae grass, Echinochioa colona, were infected by this fungus. The symptoms on infected plants were brown or reddish brown spots with or without yellowish halos. These results indicated that B maydis has a considerable wide host range in Taiwan.