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 ...

Walk through an oak stand in late summer or fall, and you’ll spot leaves dotted with neat little spheres, also known as galls ...

Woolly oak gall Goldenrod ball gall and bunch gall on same plant. Ruth Smith photo. Oak apple gall. Ruth Smith photo. A friend sent me a text message recently in which she asked, “Any idea what these ...

Galls are abnormal growths on the leaves and twigs of many plants. The oak trees in the Skiatook area have two kinds of galls, a leaf gall and a twig gall. Both are caused by tiny wasps. Galls provide ...

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 ...

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 ...

The gall wasp group (Hymenoptera: Cynipidae) represents an exceptional model for understanding ecological interactions, evolutionary innovation and the dynamic interplay between insects and their host ...

Q: We have oaks all around our property and it sounds like someone is popping corn in the woods when we walk out among the trees. When we investigated further we found these little brown “seeds” ...

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 ...