Diseases of Cereals and Flax in Iowa

Information relating to the prevalence and destructiveness of diseases of plants has been recorded in various journals and papers ever since the beginning of agriculture in Iowa. Most of these records are specific and valuable; some, however, especially for the early years, are so general as to have little value. In this paper an attempt has been made to summarize available records of the prevalence and destructiveness of the diseases of cereals and flax in Iowa and to interpret the early general reports on the basis of our present knowledge of plant pathology