Galls on plants are caused by a variety of insects such as aphids, midges, wasps, or mites. In addition, sometimes galls are formed by infections by bacteria, fungi, or nematodes and are difficult to tell apart from insect-caused galls. Most of the insect galls do little to no harm to a healthy tree.
And some are quite beautiful! Furthermore, all the critters that make these galls are very host specific. In fact, each has a specific type of architecture for their gall homes. So here are a few I found today.
And just how they get their hosts to build these incredible homes is still a mystery. I just love mysteries. Pretty amazing, eh!
The more you know, the more you see and the more you see, the more you know.