We have over 200 Norway spruce, of 17 years of age. Most look great but last summer we noticed several that were browning. This seems to be spreading. Can you recommend an arborist that could look at our trees? The county extention agent came out and tested for a particular disease, which was negative, but gave us no other help as to why the trees are dying.
Sibley County Minnesota
I am so sorry to hear about your trees. The following site may help you select an arborist. http://www.extension.umn.edu/garden/yard-garden/trees-shrubs/how-to-hire-a-professional-arborist/