Thousand cankers disease (TCD) of walnut has been detected in Maryland and Pennsylvania, so a detection is possible in Delaware this season. The disease caused by a fungus and carried by the very ...

Two lookalike trees may share your yard but only one's a menace. Learn how to spot the differences between an invasive ...

Drazen_ / Getty Images Q: I have several walnut trees on my property. I noticed that one mature tree did not produce any walnuts this year. My question is why did that one walnut tree not produce nuts ...

Many Midwestern yards are adorned by black walnut trees. The black walnut (Juglans nigra) is a large, handsome native tree that bears edible nuts. There’s just one problem with black walnuts: They’re ...