Colorado Blue Spruce and Other Conifers Disorder: Cytospora Canker
Author(s) M.F. Heimann, G.R. Stanosz
In Wisconsin, Cytospora canker is especially damaging to Colorado blue spruce, but it also affects Norway spruce, and, less commonly, other spruces and Douglas fir. This fact sheet details the disorder's symptoms and effects and provides information on how it can be effectively controlled.