I have created this page to bring attention to the Emerald Ash Borer and to document Ash Bonsai Trees.
There is a native Ash in the western 4 corner states called a (Fraxinus anomala – “Single Leaf Ash“, the tree does indeed have 1 leaf instead of the compound leaves normally seen on Ash trees. I have two of the trees under development and highly recommend them for Bonsai. I have made a page for my first tree which is now pretty much along in its development. Please click on link above to see the page. Updated 08-12-2017
This beetle was discovered on the east coast a number of years ago and has been making its way west. It arrived in the Denver metro area a few years ago and has started killing of Ash trees.
Colorado is home to the Single Leaf Ash (Fraxinus anomala) tree which makes very good Bonsai. I actually have a couple trees underdevelopment and will make a post when I get to the trees. Right now they are in hibernation.
Here are a couple of videos that are really educational and should help with your landscape trees or if you just happen to have an Ash Bonsai tree.
I have used the product in the last video with good results. Just follow the directions on the bottle. I would recommend 2 applications, one in the spring and one in the fall. It is really easy to do and will protect your trees.