Blue Spruce
Almost anybody can recognize a pine tree or evergreen tree. One of the most recognizable trees is the blue spruce. It is known for having a blue tone but is much easier to distinguish this tree from another pine by looking at the needle layout and shape of the needles. The needles of a spruce are square in shape. The needles are not bunched up, rather they are individually come from the branches. Rhizosphaera is a known disease that affects the blue spruce. It is a fungus based disease that turns the needles purple in the beginning stages of the disease. A tree that has been affected with rhizoshaera can die in as little as 5 years. Die back will take place in spots either near the base or at the crown of the tree. This disease can be treated if it is caught early enough. Cankers can be a physical problem in blue spruces. Remember cankers are either human made or made by animals such as deer or bear. Most commonly trees get cankers when they are cut by weed whipper's. The only other problem that occurs in blue spruce is that there root system is very shallow and fibrous so they are very suspect to blowing down in heavy wind. Here is what to look for in Blue Spruce:- Needles turn purple in sections
- Die back in areas (especially crown)
- Needles with brown spotting in middle of needle
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New to the blue spruce in our region is pine dieback. There is much more information about this disease on the following link. PINE DIEBACK
