we have several dead ash trees on our farm, can we plant new seedlings on the old root system to facilitate growth, and how can we protect them from the ashborer ? Are there resistant varieties of ash trees that can be planted ?
You can plant new Ash seedlings near old root systems however once the trees have grown for several years they are also likely to be attacked by the Emerald Ash Borer. There are no ash trees known to be resistant to the Ash Borer. You can treat them to protect them from the Emerald Ash Borer. You will have to treat them every year. Contact your Oldham County Extension office for a list of treatment options (502) 222-9453.
It would be better to plant several different types of trees such as Oaks, Tulip Trees and other native species to add diversity to your farm trees.