To fully discuss the fungus diseases of plants we should consider all matters that have a bearing on the question. One of the most essential conditions is the character of the weather. The relative humidity and precipitation are very important factors in the development of fungi. The germination of spores depends largely on the humidity of the atmosphere.
Proceedings of the Iowa Academy of Sciences
©1894 Iowa Academy of Science, Inc.
Pammel, L. H.
"Diseases of Plants at Ames, 1894,"
Proceedings of the Iowa Academy of Science, 2(1), 201-208.
Available at: https://scholarworks.uni.edu/pias/vol2/iss1/42