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The treatment of ash trees for Emerald Ash Borer varies according to product and method.

The previous post, Best time to treat ash trees for Emerald Ash Borer, describes the differences in treatment methods for Imidacloprid and Tree-äge.  These are soil drenching (Imidacloprid) and trunk injection (Tree- äge).

For Tree-äge, the treatment frequency is every two years in Cincinnati, because most of Greater Cincinnati is considered a “hot zone.”

Studies on population biology by scientists such as Dr. David Smitley of Michigan State University, indicate that within five years of the trees dying in an area due to Emerald Ash Borer, the population of the insect crashes because they now have no food to sustain reproductive capacity. The population falls, the infestation moves on, but the protected ash trees survive! At that point intervals between treatments can be increased, further reducing the overall cost of treatment.

As mentioned, the success of treatment for Emerald Ash Borer is enhanced by Pneumatic Vertical Mulching.  See post “Why We Recommend Pneumatic Vertical Mulching and Fertilizing” for further detail.

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