emerald ash borer
would like to know your advise on protecting my very large ash tree from emerald ash borer. I had Kevin from Eagan Forestry come out. It is currently not infected from what we can tell. I have been treating it for the last 10 years with a product from Gertens, a product by Green light called emerald ash borer killer. The product is now discontinued. I bought a extra one. Kevin thought we should have it professionally treated. He feels the product is for smaller trees. our tree is 22 inches in diameter. Would like some advice.
Dakota County Minnesota