Emerald Ash Borer
How did it get here? It appears to have come to America from cargo crates originating in Asia. Since then, it has moved around the country by its natural spread and people moving trees and firewood from one area to another. Once it is in a community, it can move one mile or more a year.
The insect larvae feed on the xylem of a tree, disrupting the movement of water and nutrients in it. Early symptoms are hard to diagnose. Often the first signs are dieback at the top of the tree. Trees may be infested for several years before symptoms are visible in the canopy. Another indication that your tree has been infested, are D-shaped exit holes on the trunk and branches.
Even with the difficulties presented by the Emerald Ash Borer, there are things you can do to protect your trees. First, take steps to improve the health of the trees. This includes mulching around the trees, fertilizing, watering, etc. Next, there are systemic pesticides that protect the xylem of the tree. When the insect eats the pesticide, it will stop feeding and die. Prevention is the best defense against Emerald Ash Borer. You will need to treat your trees each year to maintain protection. Best results occur after the 2nd year of treatment. Maintaining tree health and a preventative application before the tree is significantly challenged by the Emerald Ash Borer is your best chance of keeping your Ash trees for years to come.
For help with your trees or more information, contact Horticultural Consultants.
Phone (630) 336=4905 email horticarl@yahoo.com.
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