Michelle Grabowski - University of Minnesota Extension Educator Cynthia Ash Kanner - former University of Minnesota Extension Specialist Needle diseases of spruce trees Rhizosphaera needle cast

If you needed me a week ago, I was at the Plant Clinic buried under a large sample load of evergreens. Most of the samples were taken from Spruce trees. The Plant Clinic received many calls about Spru

SPRUCE TREE DISEASE-RHIZOSPHAERA NEEDLECAST VS. CYTOSPORA CANKER There are two commonly occurring diseases on spruce trees in ND, Rhizosphaera needlecast and Cytospora canker. Both are named after

By Pam Corle-Bennett, Contributing writer 6:41 PM Friday, May 13, 2011 What is wrong with my spruce trees? If I had a dollar for every time I have heard this question this spring, I wouldn’t quite