If you have a majestic and stately oak tree (Quercus spp.) growing in your yard, you'll know that the leaves will naturally change color in the fall before they drop off your deciduous tree. This ...

Have you noticed discoloration on your maple tree leaves this year? You aren't the only one. Here's what you should know ...

Normally these are called galls, forming on oak tree leaves, buds and stems. Often they are given common names — like the one you found is a woody stem gall.

The process of forming a gall begins when a wasp the size of a tiny gnat (see image below) lays its eggs on an oak tree branch. The eggs hatch, and larvae (also called grubs) emerge. Either the egg or ...

The species of a tree will determine the colors of its leaves in autumn. Leaves of hickories, aspen and yellow poplar will turn to shades of yellow and golden bronze.