Mountain Ash is often confused with the rest of the ash spieces when it comes to thought on Emerald Ash Borer. I am often told to go ahead and treat Mountain Ash for emerald ash borer despite the fact that they are not effected by the disease.
Mountain ash are often effected by sapsucking insects and are very hardy for the most part. They do not have a major insect or disease that can wipe them out completely. Just like many trees it often takes many different secondary pest to kill thes tree. The major drawback of having a tree like this is that they do not grow to be that large and are often considered an ornamental tree. They do have pretty orange berries that are a great food source for many varieties of birds.
I have seen some of these trees with signifcant trunk damage from woodpeckers. Another common problem associated with these trees is a gooey discharge from the trunk. This discharge often hardens and looks alot like syrup. If you see any signs of disease it is very important to contact a professional.
Things to look for
- Discharge coming from the trunk
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