The hated Tasmanian blue gum tree - better known as a variety of ... which was infected with pine pitch canker almost a decade ago. Ehrlich's staff, with help from the UC Davis department of ...

Cytospora canker is a fungus that primarily attacks blue and Norway spruce, although Siberian and white spruce may be attacked as well.Cytospora is a stress-induced disease, meaning that it only ...

Your description suggests that your Colorado blue spruce (Picea pungens ‘Glauca’) is suffering from cytospora canker, a disease caused by a fungus that attacks spruces, hemlocks, firs and larches.

Norway spruce, blue spruce and white spruce are among ... the problem is more likely to be cytospora canker, Yiesla said. This fungus lives under the bark and destroys the vessels that carry ...