EAB has likely caused your tree to have a few, or many dead or unhealthy branches. This can be an issue because the lost branches on your tree will not recover, and after some time they may have the chance to break and fall onto your property.
In this case, it would be a great idea to prune your tree. The best time to prune your ash tree is during the dormant seasons from late winter to early spring, but dead branches can and should be pruned at any time. Pruning trees during the dormant season can encourage a strong main leader while also limiting pest damage and reducing disease.
To start properly pruning your ash tree follow these steps;
Make a cut on the underside of the dead or damaged branch. The cut should pass 1/4th of the way through the branch, about half a foot (15 cm.) from the branch collar.
Cut off the branch completely, making the cut one inch (2.5 cm.) past the first cut. This cut should be made from the top side of the branch.
After cutting the branch and letting it fall, remove the branch stump.
Pruning the dead branches from your tree can help prevent injury or property damage.
It can help to maintain a healthy balance to your tree.
After a tree is properly pruned, the cambium layer will grow over the edge of the cut and seal it.
Pruning dead limbs and branches can have visual benefits while also protecting your property and preventing possible injury.
A good pruning cut avoids nicking the collar and will seal up properly. The picture of pruning cuts show, bottom was done correctly and we can see the cambium layer sealing all the way around the cut. The top cut nicked the collar and doesn't have a full seal all the way around.
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