Persisting in the winter months as ball-shaped shells on oak trees, galls, which are considered an eyesore by landscapers in the summer months, appear as a sort of curiosity in winter. What are these ...

The relationships that have evolved between plants and animals over many millennia of time spent coexisting are often as interesting as they are vast and varied. From the production of nectar and ...

Q. We have a pin oak tree that is approximately 30 feet tall. On the north-facing side of the tree there are many wilted leaves, and there are many balls of strange growth. Pictures of the leaves and ...

Have you noticed strange growths on leaves or swollen areas along plant stems? If the answer is yes, you may have what is referred to as plant galls. Galls vary in size and shape and can be found on ...

The odd growths on leaves and woody stems of live oak and some other trees are not flowers, foliage, or acorns; they are galls. Galls are a plant’s reaction to an intrusion by insects, mites, or even ...

DEAR GARDEN COACH: Help! I recently discovered these crazy looking things on the leaves of my valley oak tree. I am wondering what is wrong, and what can I do to get rid of them? I know the tree is ...

Plenty of animals build their homes in oak trees. But some very teeny, tricky insects make the tree do all the work. “What nerve!” you might say. What … gall! And you’d be right. Oak galls are caused ...

Plenty of animals build their homes in oak trees. But some very teeny, tricky insects make the tree do all the work. “What nerve!” you might say. What … gall! And you’d be right. Oak galls are caused ...

DEAR GARDEN COACH: Help! I recently discovered these crazy looking things on the leaves of my valley oak tree. I am wondering what is wrong, and what can I do to get rid of them? I know the tree is ...