Best time to trim oak trees in san antonio

I’m asked several times weekly when it’s safe to prune oak trees.

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People are usually concerned about spreading oak wilt by pruning improperly.

I decided to address tree pruning in two steps. We’ll start with the oaks, and we’ll spread to the general topic of all trees.

Pruning oaks: How and when…
Because they are subject to a vascular fungus that has killed thousands of live oaks and red oaks across Texas, how and when we prune these trees is ultra-important.

Here are your important facts.

• Insects are a major carrier of the oak wilt fungus. They move most freely to open wounds.

• Insects are inactive in winter, so prime pruning time was initially determined to be Thanksgiving through Valentine’s Day.

• The oak wilt fungus is inactive at temperatures above 95F, so it was later determined that pruning could be done after mid-July and running through Valentine’s Day.

• All cut surfaces larger than a broomstick (or your thumb) should be coated with pruning paint (or paint of some type) to prevent direct access to the fresh

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