What are these blister-like things on the leaves of my oak tree? Will it harm them? P.T., Tulsa The structure on your leaves is a common oak leaf gall and will not harm a mature tree. Galls are ...

The National Garden Bureau recognizes and thanks the experts at PanAmerican Seed, an NGB member, as the author and contributor to this fact sheet, which is provided as an educational service with no ...

Dear Reader: These are galls that have resulted from the stings of the tree tissue by a small wasp as she lays her eggs in the current season’s growth. Oaks are host plants to scores of different ...

HOUSTON, Texas (KTRK) -- Oak galls are popping up everywhere this fall! They're the tiny, fuzzy yellow or brown balls on oak leaves and branches. You could spot one or two, then dozens around the same ...

You’re admiring the stalwart limbs and sculpted leaves of your handsome oak tree, and suddenly you see them: warty bulges clustered along the branches like bunches of freaky grapes. There’s no need to ...

Q. My oak tree has these marble-sized growths on some of the limbs which I am told are galls. What can I do about them? A. Nature creates many amazing things, and plant galls are among the most unique ...

A couple of my trees have some odd looking bumps on their leaves. Is there anything I should be doing to help my trees? Your description suggests that your tree has galls. Insect and mite galls are ...

While walking to the mailbox one sunny morning I saw odd-looking spheres hanging from one of the young white oaks. About the size of golf balls, they were white with a few brown spots and fuzzy.