Green and white ash trees are the two most common ash species and their range covers most of the Eastern United States and Canada. Other significant ash trees to cover significant ranges are black ...

Find out about common North American trees with pinnate leaves. Learn how to identify hickory, ash, walnut, black locust, and pecan using this guide.

Ash leaves are turning purple and yellow now, gardening season is winding down, and the aphids are back. While enjoying the spectacular fall color this year, you may have noticed tiny, powdery ...

Purdue Landscape Report: The emerald ash borer (EAB), Agrilus planennis, is still one of the most damaging insect pests ever to invade North American forests.Unlike most native boring insects, this ...