Mon Sep 23 23:08:07 UTC 2024: ## Oak Gall Explosion in Houston: Sign of Stressed Trees, Not a Threat to Humans

**HOUSTON, Texas (KTRK)** – Oak trees across Houston are sporting an unusual number of fuzzy, yellow or brown balls this fall – oak galls, the result of gall wasps. While these galls may appear alarming in their abundance, they are not harmful to humans or pets, according to experts.

Karrie Calloway with Texas A&M AgriLife in Harris County explains that the increase in galls is a warning sign that the oak trees may have been weakened by last year’s extreme weather events, including storms, flooding, and a small freeze. The gall wasps are attracted to less healthy trees.

“The abundance of galls is essentially a sign that your oak tree needs a little extra TLC,” Calloway said. “It’s a reminder to give them some love with regular watering, pruning, and mulching.”

While it’s tempting to remove the galls, Calloway advises against it. Instead, wait for the galls to turn brown and develop a small hole, indicating the wasp has left. Then, they can be safely removed.

Although the presence of galls may seem worrisome, they pose no threat to humans or pets. The galls serve as a home for the gall wasp’s eggs and larvae, and once the wasps hatch, they are harmless.

This surge in oak galls is a reminder that our local trees may need extra care following a challenging year for weather. By following Calloway’s advice, we can ensure our oak trees remain healthy and vibrant.

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