Trimming a tree involves more than simply lopping off branches. If it’s done incorrectly, it can not only injure your tree but can kill it. Because of this, it’s a good idea to leave pruning and trimming to a professional arborist. But if you’re going to do some trimming yourself, here are some mistakes to avoid.

Using Dull Tools

The importance of having sharp, clean tools can’t be stressed enough. A pruning implement should be sharp enough to make a clean cut. A dull tool simply crushes the branch, which makes the tree more vulnerable to pests and diseases. Some arborists also recommend dipping pruning tools in a bucket of diluted bleach between uses to kill germs.

Cutting Off the Branch Collar

The branch collar is that swollen, roundish structure that connects the branch to the trunk of the tree. Though taking it off with the branch makes for a smoother-looking cut, the branch collar should not be pruned off. This is because the collar helps the tree heal after it’s been pruned or trimmed. The place where the collar’s been removed may even deteriorate to form a cavity. This can weaken the tree.

Lopping Off the Branch at a Random Point

Pruning a branch at the end, in the middle, or at any place other than where it connects with the branch collar is called heading. This is not only unsightly but also causes the branch to sprout weak twigs. These twigs break off easily, either from the wind or the weight of fruit. The wounds they leave behind are also at risk for infection.

Stub cutting is a type of heading cut where you leave enough of the branch to hang your hat on. When this happens, the branch collar can’t grow over the wound and heal it properly.

Bad Timing

The consequences of trimming a tree at the wrong time might not be as dire as other trimming no-nos. However, if you value blossoms or fruit, trimming at the right time is crucial. Generally, fruit trees should be pruned when they’re dormant to encourage strong branching and plentiful fruit. On the other hand, lots of ornamentals need to be trimmed right after they bloom. You should also avoid trimming in the fall, as some trees have dormant flower buds that should bloom in spring.

If Your Trees Need Trimming, Get in Touch With Professional Arborists

Pruning and trimming keep your trees healthy and attractive, but only if they’re done in the right way. If your trees in the San Francisco Bay Area need trimming, pruning or other services, get in touch with our professional arborists at Maguire Tree Care, Inc.