At least three pronounced outbreaks of the late blight of the potato, Phytophthora infestans, have occurred in Iowa within the past forty-five years. These were in 1885, 1903, and 1915. The northern limits of the region generally designated as the corn-belt seems to represent in a general way the southern limits of this disease under normal climatic conditions. This is indicated by the fact of its frequent occurrence in the region just north of us.
Proceedings of the Iowa Academy of Science
©1916 Iowa Academy of Science, Inc.
Erwin, A. T.
"Late Potato Blight Epidemics in Iowa as Correlated with Climatic Conditions,"
Proceedings of the Iowa Academy of Science, 23(1), 583-592.
Available at: https://scholarworks.uni.edu/pias/vol23/iss1/65