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 ...

Hello Mid-Ohio Valley farmers and gardeners! Although we got off to a slow start to the growing season, farmers around the area are harvesting hay and gardeners have planted plenty of tomatoes, ...

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 ...

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 ...

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 ...

When you look up into the bare branches of some oak trees at this time of year, you can see ball-shaped growths hanging there, looking almost like nature’s Christmas ornaments. These are galls. A gall ...

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 growths on leaves, stems, branches, trunks, and roots caused by various agents. But they are usually induced by either insects or a fungus of some sort. The exact manner in which insect ...

Oak gall wasps and their predators don’t have the panache of butterflies, but they’re attracting growing interest among both scientists and naturalists. Only 1 to 8 millimeters long, these small ...

When you look up into the bare branches of some oak trees at this time of year, you can see ball-shaped growths hanging there, looking almost like nature’s Christmas ornaments. These are galls. A gall ...

When you look up into the bare branches of some oak trees at this time of year, you can see ball-shaped growths hanging there, looking almost like nature’s Christmas ornaments. These are galls. A gall ...