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RX For Wounded Trees
The Classic How-To On Tree Care - United States Forest Service AIB-387 
 
 RX For Wounded Trees
• Forward
• Too Late
• Tree Care
• Tree Wounds
• Prevent Wound Problems
• Treat Wounds
• RX for Wounded Trees

 More on Tree Care
• Protect Your Forest
• Trees In Your Yard
 
How To Prevent Wound Problems - Part I
"bark scratch test" for vigor.
First test the vigor of a branch to see if pruning might be necessary. (See illustration 22)

Editor's Note: A great way plant health and vigor can be determined by using this illustrated "bark scratch test".


 

Results of proper and improper pruning.
If pruning is necessary, prune dead and dying branches properly to help the tree heal its branch wounds faster and to reduce the chances for infection that could lead to decay. (See illustration 23)

Proper pruning will help the tree, while improper pruning only causes the tree more trouble . . .

Serious trouble can result from improper pruning unless you these steps as illustrated:


1. Undercut
2. Upper cut to remove branch
3. Flush cut

Editor's Note: You should always remove a limb using the above three steps. In effect you are making three cuts. You remove the limbs weight in step one and two and remove the stub in step three.


Prevent by Proper Pruning

Prune old dead stubs properly. (See illustration 28) Proper and improper pruning.

Many microorganisms use old dead stubs as springboards into the trunk. (See illustrations 29 and 30)
Effects of proper and improper pruning.Poorly healed branch stub.

When a tree top is broken, prune the broken top. A vigorous branch near the broken top usually becomes the new leader. When pruned properly, the tree will heal its wound faster and the likelihood of decay developing decreases. If decay does develop, it is usually limited to the old leader. (See illustrations 31, 32, and 33)
Broken top.
Decay in stem stub.Branch as new leader.
Prune away any branches that might be on a collision course with a building, power line, or path. If cut when it is still small, its wounds will heal faster and decay will not start. Branches do not raise in height as a tree grows. (See illustrations 34, and 35)

Potential collision problemProblem tree.

How To Prevent Wound Problems - Part II

Forward~Too Late~Tree Care~Tree Wounds~Prevent Wound Problems~Treat Wounds~Wound RX


 

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