Many coast live oak (Quercus agrifolia) trees are showing unusual browning in their canopies in the last month or two. If you look carefully, you may see small, crescent-shaped galls forming on the ...

If you’ve noticed unusual bumps that look like tiny “horns” or brown spots on the leaves of your oak tree this winter, you’re ...

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 ...

DEAR JOAN: There has been much discussion on Nextdoor about oak galls lately, mostly about how the galls are harmless to the tree and that they’re quite prevalent this year on oak trees around ...

Earlier this month my colleague, LyAnn Graff, brought in an interesting looking fuzz ball surrounding a thin leafy branch of a burr oak tree. It was about the size of a golf ball, but with red-tipped ...

Residents of Leon and Wakulla counties may be noticing dead or dying laurel oaks in yards or along the roads. If you look at these trees carefully, you will see round, wooden balls on the twigs and ...

Life cycle of an oak gall wasp (in this case, Callirhytis quercusmodesta; pink), and the crypt keeper wasp, Euderus set (green).Mona Luo Details of methods for the C. quercusmodesta / Euderus ...