Coast live oak leaves with brown, scorched margins due to feeding on the leaf underside by the two-horned oak gall wasp. (Photo by Jack Kelly Clark) These wasps are native to California, and form ...

Q. We have a pin oak tree that is approximately 30 feet tall. On the north-facing side of the tree there are many wilted leaves, and there are many balls of strange growth. Pictures of the leaves and ...

Oak leaf galls part of nature’s cycle The growth, called galls, serve as homes for developing wasps. Share this: ... What you have on your leaves are galls.

Bullet galls are hard, round, and pea-to-knuckle-size, and usually are most apparent by August. Jumping oak galls grow on leaves and look a bit like small, round seeds or BBs. The galls fall off ...

Hedgehog galls appear on oak leaves as clumps of bristly pink fur, while wood sower galls look like white or creamy cotton balls. The fluff is actually a group of wasp-induced galls.

Your perfectly round ping-pong-sized galls were probably caused by a gall wasp or, as entomologists call them, the cynipid wasp. Most galls are small, but some can be as large as 2-inches in diameter.

Like last year, we are seeing a high number of vein pocket gall on pin oak leaves, which causes abnormal swelling of the leaf near the veins. And, unfortunately, there are no easy fixes.

Oak galls are more a curiosity than a true pest, but they are attention-grabbing when first seen. Hundreds of different kinds of galls can form on oak buds, twigs, leaves or acorns, most caused by ...

Eventually these tiny galls drop from the leaves. Each gall contains a tiny active wasp larva inside. Once on the ground they can be seen moving rapidly and hopping an inch or more high, quite an ...

They can freak you out if you love your live oak like I do, because I was afraid that it was a dangerous pest. But not to worry, I found out. The galls are pesky looking and will damage the leaf ...

I'm starting to see some of the oaks have a "dead" look to the leaves. I believe they are white oaks. It started on a small oak this spring, but ...

LITTLE ROCK, Ark. (June 30, 2015) – Leaf damage has been confirmed in clusters of white oak trees in north and central Arkansas areas due to Jumping Oak Gall, or small plant growths caused by ...