Preventing Ash Trees from Emerald Ash Borer (insect, front yard, leaves)

[artking09]

Two ash trees in my front yard are dying. They have lost all their leaves and many branches. The tree guy said that emerald ash borer is most likely the cause. These two trees have to be cut down. Since I have several other big ash trees, all look reasonably healthy, one showing spotty yellow leaves and dead branches. The tree guy said they can do insecticide soil drench or trunk injection (for larger trees) to prevent the remaining ash trees from emerald ash borer. The cost is about $100 per year for each tree. I don't know the true effectiveness of this kind of treatment, especially for emerald ash borer.

Does anyone have similar experience? Which insecticide did you use? Soil drench or trunk injection? Is this effective so far? Thanks.

[wit-nit]

You might want to read up on the subject from these two sites.

Treatment Information | Emerald Ash Borer Information Network

http://www.emeraldashborer.info/file...fact_sheet.pdf

Since this is a new problem no one has come up with a definitive prevention method that's proven 100% effective.

[noodlecat]

I have been doing the trunk injection for the past 7 years. I think the product used is Treeage. So far it has worked beautifully. Other trees in the area are dying/have died, but my tree is happy and healthy. It costs me $200 every 2-3 years, and is worth every penny to me to save the largest tree on my property.