Dormant pruning vs summer pruning for oak wilt prevention near Austin...

I've been going back and forth on this after a buddy in Round Rock lost 3 oaks last season to oak wilt. My old mentor swore by pruning only in the dead of winter, but I've seen guys up in Dallas cut in July with no issues. Maybe it's about the paint or the timing being less critical than we think? What's your experience with specific months and wound sealers?

3 comments

3 Comments

ninah107d ago

You mentioned your buddy in Round Rock losing 3 oaks, and that's exactly why I push back on the idea that timing isn't critical. I've been following the Texas A&M forest service guidelines for years and they're pretty clear that February is the safest month for pruning oaks in central Texas, with a hard cutoff at the end of March. The painted wounds help, but if sap beetles are already active in warm weather they can still carry the fungus into those fresh cuts.

craig.grant7d ago

That 80% rule they push about oak wilt moving through root grafts really changes things too. I see this same kind of thinking everywhere, not just with trees. People wait until the visible problem is obvious, like a dead branch or a bad symptom, then scramble to fix it when the real damage was done months earlier by a tiny crack they ignored. It reminds me of how everyone waits until their A/C blows warm air in July instead of replacing the filter in March. Have you noticed the same thing with how people handle their yard pests or even their car maintenance around here?

sarah_brown7d ago

Wait, so the painted wounds don't even guarantee safety once those beetles are out? That's wild and kind of terrifying considering how many people probably think a dab of paint makes them invincible.