Abstract: Skin patch-tests with the fungi isolated from the ears of wheat were performed on humans and guineapigs respectively in this article.We found that the extent of reaction and the positive rate were significantly higher in the repeated test after 12 days than those in the first, and the positive rates were 100% in the tests with F.moniliforme, F.semitectum, F.equisetim, Monosporium apiospermum, A.flavus, A.niger, A.verszcolor and the washings of the ears of wheat,the positive rates were higher than 50% in the tests of men with above mentioned fungi and washings.The result suggest that aforesaid seven species are the pathogens of wheat harvest dermatitis.These organisms and their toxins may have toxic and sensitizing action to men.So we consider that the disease is an occupational fungal contact dermatitis, and is not related to puccinia and erysiphe.

Key words: Dermatitis, contact, Occupational dermatitis Dermatomycoses