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.

I said the wasp produces the galls, but in reality, it’s the oak that produces them. Here’s what happens: One of these very small wasps bores a tiny hole in the tree bark or, more commonly, in ...

There are nearly 800 species of gall wasps in North America, and most of these have specialized relationships only with oaks.” According to Logan, cynipid wasps have been using oak trees for laying ...

YOUR OAK IS PRIME PROPERTY FOR HOMESTEADING… Share this: Click to share on Facebook (Opens in new window) Click to share on X (Opens in new window) Subscribe; Login; ...

These galls are formed when a tiny gall wasp lays its eggs in the tissue of the oak’s flower buds in the spring. This wasp is one of hundreds of species of gall wasps (family Cynipidae) active ...

You see them everywhere on oak trees this time of year … those odd-looking growths on the stems and leaves of oak trees. Some look like malformed apples, others look like tiny traffic cones or little ...

Q • My oak trees have more large galls than I’ve ever seen on them, and I’m worried about their health. What can I do about ...

There are three groups of insects that can cause galls: aphids, gall midges and gall wasps. In North America, we have over 50 varieties of gall wasps, but the oak apple galls are caused by the ...

Read Today's Paper Tuesday, January 16. 💪Rosie Awards. 🏆 20 Under 40 nominations ...

Odd fruit seen in Connecticut trees are actually families of growing wasps that appear in May and June. Adult oak apple gall wasps will emerge in coming weeks.

The oak apple gall made by the apple gall wasp is a common local example on Staten Island with one of these interesting life cycles. After males and females mate, the female burrows into the ...

Galls are abnormal growths and can be caused by a variety of different organisms, including insects and mites, and occasionally nematodes, fungi, and bacteria.