It’s a Bug Eat Bug World Out There – Even in a Gall

A plant gall is an abnormal outgrowth of plant tissue caused by a "gall-maker", which could be an insect, mite, virus, nematode or fungus. ┬áThe inter-relationship between plant and gall-maker is complex, very specific, and developed over eons. ┬áThe relationship…

Galls – Intimate Interactions

Galls are a long-evolved interaction between a plant and a gall-maker. The gall-maker could be an insect, mite, bacteria, fungus, virus or nematode. Gall-makers generally are "tied" to one species of plants or a genus of plants and tend to…

Great Bay Galls

The red bay psylid (Trioza magnolia) is responsible for galls on the edges of the leaves of red bay (Persea borbonia) and swamp bay (Persea palustris). The galls are so ubiquitous and distinctive that they are sometimes used as a…