Does your pin oak look like it’s breaking out in little bumps Those odd, round growths are called twig galls, and they’re ...

Not all wasp-shaped insects can do us harm. Gall wasps are a stingless species that create galls on trees and bushes where they grow from larvae into adulthood. So, now we know they won't hurt us ...

Getty Images/iStockphoto These little balls are actually the home, so to speak, for a gall wasp. Adult gall wasps will inject a chemical into the leaf buds as they're forming, and these little ...

Eucalyptus gall wasps, particularly the invasive Leptocybe invasa, present a serious threat to forestry and ecosystem health worldwide. These wasps induce the formation of specialised galls on ...

The gall wasp group (Hymenoptera: Cynipidae) represents an exceptional model for understanding ecological interactions, evolutionary innovation and the dynamic interplay between insects and their ...

This particular gall infecting our laurel oaks is caused by the eastern horned gall wasp (Callirhytis quercusclaviger). The horn in the name is descriptive of the numerous small, horn-like ...

Twenty-two new species of gall wasps have been identified and named, thanks to new research. The study nearly doubles the number of known species in this genus of wasps. Twenty-two new species of ...

The invasive gall wasps were first discovered on Oahu in 2005. They spread quickly throughout the state and resulted in the death of thousands of Erythrina trees, including native wiliwili trees.

Native to the southeastern United States, this species lays its egg inside the tiny, wooden chambers that another parasitic wasp species, the gall wasp (Bassettia pallida), carves out in sand live ...

The wasps come out of a “microhabitat” of “tumorlike growths” made by a gall wasp species that lives on oak leaves on the campus, according to the news release. Researchers collected the ...