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Emerald Ash Borer Treatment Ottawa

The Emerald Ash Borer is now present in the Greater Ottawa Area. As predicted by tree professionals in the industry, the pest has spread quite fast across city borders within four years! The Canadian Food Inspection Agency has enforced certain laws about moving firewood within certain areas of the city with little success at slowing it down. The insect only targets TRUE Ash Trees (Fraxinus) not species like Mountain Ash (Sorbus).

Ottawa Arborists - Emerald Ash Borer

Treatment for Emerald Ash Borer

There is one dependable treatment on the market and available to tree professionals now. It is called TreeAzin and is supplied by BioForest. We feel that if EAB is confirmed by an Arborist the treatment should be started immediately! Rule of thumb for treatment is if less than 30% of the tree canopy is showing symptoms of die-back the tree has an acceptable chance of survival. Our organization will not treat a tree showing symptoms of more than 10% already. We are trying to educate the public and raise awareness with homeowners that have Ash trees on their properties to proceed with this treatment to help slow the spread of this destructive pest. Since local predators that usually consume beetles as part of their diet do not necessarily recognize the insect, (it is relatively new to the area) it may be quite some time before it can be controlled naturally. The best DEFENSE for your tree is to maintain its health and vigor. Proper pruning methods (when necessary) should only be done by professionals. A proper watering and fertilization program and treatment by a pesticide applicator specializing in the EAB will give your Ash trees the best chance of surviving this long-term problem we are facing. The Ash tree may be going the same way as the Elm and might be a rare tree within twenty years.

Some signs of the tree having EAB is Crown Die-back in the canopy (thinning occurring due to death of branches), smaller foliage than usual, D shaped exit wounds on the bark, Wood peckers attacking your tree, and the most obvious one is the epicormic growth (fast growing shoots) on the trunk where nutrient flow is restricted from the insects feeding under the bark.

Emerald Ash Borer Gallery