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

Galls are abnormal, tumor-like growths on oak trees created by gall wasps as a shelter for their larvae. Once the gall wasp larvae become adults, they eat their way out of the gall and fly away.

Mites, nematodes, bacteria, fungi or viruses can initiate gall formation, but insects are mostly to blame. When a female insect lays an egg inside plant tissue and the larva emerges from that egg ...

Learn about gall wasps and why, for the most part, you shouldn't be concerned about seeing them in your garden. Learn to spot gall wasps in your garden.

They are gall wasps due to their amazing ability to “chemically manipulate the plant tissues to form galls, plant growths that provide both protection and food for cynipid larvae. There are nearly 800 ...

The galls serve as an ideal environment for wasp larvae, whether it is a single offspring, or dozens. Much research has been done to determine the exact nature and causes of species-specific gall ...

The galls fall to the ground once the wasp larvae are mature. The movement that you describe is the larva inside the gall moving and making the gall jump around on the ground.

Karma exists, at least for gall wasps. These little bugs deposit their larvae in trees so their young can leech off of the plant’s nutrients.

These follow a similar lifestyle as the two-horned oak gall wasp, but they’re colonial, with dozens of wasp larvae sharing a single gall, and they’re laid in branch tissue, not leaves.

The gall making process begins when the adult female wasps emerge in the spring to mate and sip plant nectar, which gives them the energy to fly to developing tree leaf buds where they lay their eggs.

Crypt-keeper larvae then burrow into the gall wasp hatchlings. A host gall wasp matures and begins to chew its way out of the gall as it normally would, but then, as observed by researchers from ...