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

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

For the past few summers, Elkins Park homeowner Laura Frank has been managing the poison ivy in her yard on her own. This year, though, the patch in her front yard exploded, seemingly overnight. “I ...

Poison ivy, poison oak and poison sumac can make for an uncomfortable summer or fall. If you have ever experienced the blisters, swelling and intense itching of even the briefest of encounters, then ...

Poison ivy usually grows as a vine, but can also take on a bushy form. It can grow anywhere and its appearance changes throughout the year, and it looks like dozens of innocent plants, such as ...

A few years ago I was leading a group of Merrimack College ecology students on a nature walk, when one of them pointed to a vine with five leaflets per leaf, and asked if it was poison ivy. “No,” I ...

MINNEAPOLIS (WCCO) - At some point, most of us will either come into contact with poison ivy or know someone with the telltale rash. According to the CDC, roughly 90 percent of people exposed to the ...

Mason Heberling, associate curator of botany at the Carnegie Museum of Natural History, holds a poison ivy specimen collected in Lehigh County, Pa. in 1840, the oldest used in the study. A new study ...

This year, the battle began with mowing a patch of weeds that had grown a bit too cocky in our daily downpours and summer heat. I didn’t notice my own personal nemesis, Toxicodendron radicans, lurking ...

(MetroServices) — Poison ivy, oak and sumac are plants that contain an oil that may cause a rash on many people's skin. Urushiol, the irritant oil in these plants, need only be present in a billionth ...

Poison ivy usually grows as a vine, but can also take on a bushy form. It can grow anywhere and its appearance changes throughout the year, and it looks like dozens of innocent plants, such as ...