For more than a hundred years, scientists have studied the strange partnership between ants and seeds. In this relationship, ...

A gall is a plant’s response to an irritant in its tissue. Galls can occur on leaves, ... For example, oak spangles are galls that look like little disks on the back of an oak leaf.

If you spend enough time looking at and working with plants, you’ll inevitably come across galls. Galls are abnormal growths and can be caused by a variety of different organisms, including insects ...

The Plant Doctor Tom MacCubbin shares advice about tree galls, anise plants, gardenias, soybeans and lawn aeration. Skip to content. All Sections. Subscribe Now. 70°F. Friday, April 25th 2025 ...

The most well known gall is the oak apple gall, ... More than 2,000 kinds of insect galls have been identified in North American plants, with 800 of these caused by gall wasps.

Galls are odd growths found on plants. Sometimes they are papery brown orbs on oak leaves, swollen balls on goldenrod stems, bulging kidney-shaped bumps on blueberry branches, or white woolly ...

Galls on oak leaves are harmless growths caused by specific insects. ... In general, leaf galls do not cause any great harm to plants but often cause people to worry about their trees.

“Gall-inducers are fascinating in that they are very specialized to their organ of the host plant.” Oak galls form when an insect, or its larvae, introduce chemicals into a leaf or stem that ...

These balls are called galls. Galls are plant tissue. ... Imagine how many wasps come out of a full-size laurel oak covered with galls! The eastern horned gall wasp has been around for a long time.

Jumping oak galls are caused by a very tiny, native, stingless wasp (Neuroterus sp.) which lays eggs in leaf buds. As the leaf develops, pinhead-sized galls, also referred to as abnormal plant ...

Oak galls have extremely high tannin content, which is also found in plant sources like bark and leaves, and is a natural mordant. It enhances the dye color as well as improving colorfastness.