The oak wilt disease, caused by Endoconidiophora fagacerum Bretz, has been present in the Brayton Memorial Forest, near Hopkinton, Delaware County, Iowa, for many years. The actual date of original infection is unknown. Prior to 1951, the forest was left unmanaged and no disease control was attempted. During that year, a 100 percent inventory was made of the trees killed by this disease on a 38.6-acre tract within the forest (Brinkman 1952).
Proceedings of the Iowa Academy of Science
©1957 Iowa Academy of Science, Inc.
Fritch, Kathleen C.; Schwarte, Mary K.; and McNabb, Harold S. Jr.
"Observations on the Effect of Logging on the Spread of Oak Wilt in the Brayton Memorial Forest, Iowa,"
Proceedings of the Iowa Academy of Science, 64(1), 110-112.
Available at: https://scholarworks.uni.edu/pias/vol64/iss1/11