WINTER PRUNING OF TREES ~
2. The tree is dormant, which will eliminate the bleeding of sap from the fresh cuts. Such as Oak trees which should only be pruned during the winter. This is due to the fact that freshly cut oaks emit an odor which attracts the beetle that causes oak wilt. This is a serious disease that often times will kill the tree. The beetles are hibernating during the winter, so this is the best time to prune the Oak.
3. There are several other varieties of trees that are less likely to contract diseases when pruned during the winter months.
a. Locust: to prevent stem canker
b. Apple, Crab Apple, Mountain Ash and Hawthorn to avoid fire blight
a. chokeberry ( Aronia)
b. flowering plum or cherry ( Prunus)
c. june berry ( Amelanchier)
d. lilac ( Syringa)
e. deciduous flowering magnolias
And then we get to the basic pruning guidelines ~ The "5 D's" that describe situations where pruning branches may be done at any time:
By understanding how, when and why to prune, and by following a few simple principles, you will help to maintain your trees health and also manage continued safety and aesthetics.