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

Gall wasps are parasites, but only in the sense that they feed on branches or stems of oaks, roses, thimbleberries, some types of maple, and a few other plant species.

The two-horned oak gall wasp is just one of dozens of species of gall wasps that incubate their eggs in oak leaves. Skip to content. All Sections. Subscribe Now. 70°F. Sunday, June 8th 2025 ...

But leaf gall wasps are age-old associates of live oaks, The damage is unsightly, and may weaken the tree, but I've never heard of it killing one.The leaf gall wasp is one of the hundreds of ...

They are called galls. Oak galls are caused by gall wasps, a small cynipid wasp. The female wasp lays her eggs on the tree. This irritation causes the abnormal plant growth we ...

Ormyrus labotus parasitizes gall wasps, which lay their eggs on plants and induce them to form protective, swollen structures called galls around the larvae (a parasite, in a parasite!).

The horns develop the second or third year after the gall maker's eggs are laid, when the wasps inside are nearing their full size. Eventually, one full-size adult wasp emerges from each horn.

Gall wasps, which belong to the family Cynipidae, do not sting. There are more than 700 species of cynipid gall wasps in North America and at least 90 species within the genus Callirhytis.

Cynipid: A member of the Cynipidae family, commonly known as gall wasps, many of which induce galls on plants. Phylogeny: The study of the evolutionary history and relationships among species.

Gall wasps are a small breed of wasps that lay their eggs […] ABILENE, Texas (KTAB/KRBC) – Some residents have noticed small acorn-like balls in their yard or around their oak trees, ...

A comprehensive review of inquiline oak gall wasps provided an updated account of the New World species, including the description of three new taxa and a morphological key to distinguish the ...