In reality, paint pruning can prevent healing and encourage the growth of rotting organisms and insect infestation. Instead of sealing the infection, wound dressings often seal in moisture and decay. In most cases, it is best to let the wounds seal on their own. No, you should not usually use pruning sealants after pruning trees or shrubs.
The main exception is when trees such as elms and oaks, which are susceptible to vascular wilt, such as Dutch elm disease and oak wilt, must be pruned during the growing season for safety reasons. In such exceptional cases, painting wounds with latex-based paint will help prevent the spread of vascular wilt by beetles, while allowing the wounds to seal properly. When tree branches are cut, wounds are created that can act as open doors to disease. To avoid this, trees naturally seal wounds after pruning, although they do not actually heal them.
Instead, fresh tissue grows to cover wounds, protecting them from tooth decay and disease. If you remove a branch completely, you should leave the branch collar, which is the swollen area where the tree branch emerges from the trunk. This keeps the pruning wound manageable, while a flush cut creates a larger wound that is more difficult for the tree to seal. Dip a brush into the container of liquid sealant for pruning and use the brush to cover the piece of the limb with the sealant.
Brush the sealer back and forth over the piece and around its edges to make sure it covers the wood completely. The pruning seal may naturally peel off, rot or crack over time. While doing so, it opens wounds that the tree cannot heal. This makes it easier for insects, bacteria and fungi to infect the tree.
When applying a pruning seal, place a temporary plaster on a wound that does not close. It's only a matter of time before the pruning seal creates a bigger problem than it solves. Scientific research has shown that pruning sealant is not necessary. Much more important is the proper pruning technique.
Knowledge of the anatomy and physiology of the tree allows us to prune a tree and allow the tree to use its protective mechanisms to protect itself. It is also advisable to minimize pruning on landscape trees by training a tree when it is young. Cutting small branches when the tree is young avoids the need to cut larger branches later on. The large wounds that occur when removing large branches create greater difficulties for the tree.
In most cases, the answer is no. Wound dressings such as tar, asphalt, paint or any other petroleum solvent should not be used on trees. If you want to apply a wound dressing for aesthetic purposes, spray on a very thin layer of an aerosol wound dressing. Keep in mind that this is just for appearances.
After pruning, trees grow new wood, which covers the pruning wound and prevents the invasion of pathogens (diseases) or insects. Finally, if a branch has broken and the break is flush with the trunk, it will be much more difficult for the tree to seal. As long as you follow these steps, your trees and other plants will remain perfectly safe without a pruning seal. If, for example, a branch is cut off during spring or summer, when the tree may be more susceptible to insects and diseases than during autumn or winter, sealing the remaining piece of the extracted branch will protect it from damage.
Damage to the bark from pruning branches can be avoided by not shedding or dropping branches through the crown of a tree, and using the appropriate three-step pruning method for branches. If you haven't pruned your trees in some time, it's tempting to have as much of your tree crown removed as possible at once. It is possible to see scars (compartmentalized damage) caused by fires 50 and 100 years before the tree was finally cut. However, if the tree has been damaged or has branches that cross and rub against each other, you may have no choice but to prune as soon as possible.
A better approach is to prune the tree at regular intervals to correct the shape of a tree's crown and remove duplicate, crossed, overgrown or unbalanced branches. Unfortunately for the trees in my wife's grandfather's garden, painting varnish, tar or similar sticky substances on the wound of a freshly made cut WAS CONSIDERED the right thing to do. If you prune your trees without understanding the principles of pruning and tree growth, you run the risk of creating a repetitive pattern of damage to your trees that can cause them to decline. In addition, a tree cannot be cured only if weather conditions are getting drier, such as a drought, and sealing the cutting area will help the tree retain moisture.