Each year in late spring and early summer, homeowners begin noticing strange growths on the leaves or stems and are concerned for the health of their trees. Several different types of galls are common ...

Question. My oak tree has woody growths on the limbs. Should I be concerned? Answer. You have spotted the handy work of quite small insects or mites. Oaks, especially the live oaks, seem to be ...

Q : The attached photo is of a 32-inch red mulberry grown from a 6-inch bare-root seedling last spring. I am now going to plant it onto a preserve where it will get scant support over summer. I am ...

‘I have some weird, seemingly hollow, green, round balls falling from my oak tree. What in the world are these things?” — S.Y. You are describing an interesting growth that can occur on a variety of ...

We moved last year and we have a new place with more trees! Trees are an important feature for us. Our new location has two and a half acres. We have five maples and 12 red oaks! We enjoy walking ...

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 ...

Over the past few years, we've seen quite an increase in the number of oak trees affected by oak gall. These galls are roundish, very hard growths that surround the twig of several types of oaks ...

Hundreds of species of small wasps called gall wasps live in the forests of North America. Hundreds more species of them are spread worldwide. In Southeast Missouri oak trees are a favorite host plant ...

Galls are structures made up of plant tissue, forming in response to the saliva of mites or small insects as they feed. The number and variety of galls found on trees in our landscapes are closely ...

Each year in late spring and early summer, homeowners begin noticing strange growths on the leaves or stems and are concerned for the health of their trees. Several different types of galls are common ...