Poison ivy might be a small plant, but it can cause big trouble—for both your yard and your skin. Its oily sap, called urushiol, is what triggers that itchy rash, and even a tiny amount can cause a ...

It might be tempting to remove poison ivy in the winter when the plant is relatively dormant, but there are several reasons why you should wait.

Poison ivy is the bane of many summer gardeners, but just because the leaves are gone doesn't mean it's harmless in winter.

If you were a Girl Scout or a Boy Scout, you probably heard the adage "leaves of three, let them be" to deter you from getting poison ivy rash. And, while it is true that a poison ivy leaf contains ...

Enjoying the outdoors carries the danger of running into nature’s less-friendly side: toxic plants and animals. As toxicologists at the University of Virginia’s Blue Ridge Poison Center, we see many ...