Pruning The Ash Trees In Your Yard
Ash trees have an opposite branching structure. The opposing branch growth usually requires pruning to keep the tree balanced. In addition, the tree can be attacked by diseases and pests that can be controlled by pruning. Use a three-step trimming method to remove branches from ash trees. First, make a cut on the underside of the diseased or damaged branch. This cut should pass a quarter of the way through the branch about half a foot from the branch collar. Next, cut off the branch completely, making the cut one inch past the initial cut. This cut should be made from the top side of the branch. When you finish this cut, the branch will fall away. As a final step, remove the branch stump. When to prune ash trees depends in part on why you are making the particular pruning cut.
Unless you are pruning to remove dead and diseased branches, you should take care to prune the ash trees in late winter, while the tree is still dormant. For example, if you must remove live branches to allow additional sunlight and air to circulate inside the tree crown, wait until winter to act. Prune out broken, diseased, infected or dead ash tree branches whenever you spot them. The sooner you remove these branches, the less likely it is that decay-producing fungi spread to other areas of the tree.