A horticulture professor explains why this stubborn vine thrives and how to eradicate it.

Add Yahoo as a preferred source to see more of our stories on Google. Fast-growing poison ivy vines can grow 20 feet each season along fence lines and in landscaped beds. Several methods work to get ...

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 ...

What makes poison ivy a much dreaded plant is urushiol, an oily resin that, upon contact with the skin, can result in contact dermatitis, often presenting as a red, itchy rash with blisters or bumps.