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 ...

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 ...

In a matter of weeks, the larvae will eat the host insect entirely. A scientist says the wasps have no plans of eating human ...

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 ...

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 ...

In northern New England, acorns ripen in late summer and normally drop from oak trees from September through October. They may fall earlier, however, for a host of reasons, from eager squirrels ...

"We did find that they can parasitize multiple oak gall wasp species and that they can spread," Prior said, per Bing U News. ...

Q • I have noticed a lot of weird balls growing on my oak tree, and it is starting to get a lot of dead branches. What is happening to my tree, and how can I make it healthy again? A • The structures ...

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 ...

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 ...

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 ...

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 ...