Seeing unusual growths on your trees? Learn what oak tree galls look like, what causes them and how to manage them with ...

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 ...

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 ...

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 ...

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 ...

Ever seen a tree that looks like its leaves have sprouted warts or are suffering from a really bad rash? Welcome to the wild, ...

Bulging horned oak galls can be seen on fallen limbs piled up on the street in the 6400 block of Loughborough Avenue in front of a dead oak tree in 2023. The golf ball-size growths on oak twigs are ...

Q: My red oak is about 10 years old. Some of the leaves are starting to look distressed, so I looked closely. I noticed small red ants climbing up and down the trunk, almost as if they are harvesting ...

Question: We have been raking up some leaves from our oak tree. As the kids looked at some of the leaves, we noticed large bumps and some were very distorted. After observing the leaves, we looked at ...

Galls are abnormal growths on a part of the plant. They can be caused by bacteria, insects, mites and fungi. They can be on any part of a plant and are the overgrowth of plant tissue in response to ...

Gardening season is underway, and you may have questions. To ask one, simply go to the OSU Extension website, type it in and include the county where you live. A photo is very helpful. Q: Our oak tree ...