Another mistake shows up in cooler months, when bare stems or dead-looking vines get treated like harmless brush. Poison ivy and poison oak remain a problem year-round, and urushiol can still be ...

Poison ivy is a plant that can cause an itchy rash when touched. Poison ivy, poison oak, and poison sumac all contain urushiol (yoo-ROO-shee-ol), a sticky, colorless, odorless oil. Urushiol is not ...

When skin touches poison ivy, poison oak or poison sumac plants, the oils from the plant can cause a rash. This rash can be very uncomfortable, itchy and unsightly. The medical name for this rash is ...

When I announced to some friends that I was planning to establish a native sumac grove on my property, the first thing I heard was, “Why would you want to plant that trash tree on your property?” I ...

Poison ivy, oak, and sumac contain an oil called urushiol that causes an allergic skin rash. These plants can be identified by their leaf structure, though some non-toxic plants look similar. To avoid ...

If you are lucky enough to have a large outside space, planting trees is a wonderful way to add structure and foliage. Watching the trees you have planted grow year after year can be incredibly ...

It may only seem like there's more poison ivy this year. "I would say the number of requests for identification and control information for poison ivy has been consistent over the decade that I have ...

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 ...

PITKIN, La. (KPLC) - Living in Southwest Louisiana, it’s a little hard to avoid being either in or near woods, so it never hurts to “brush” up on your nature knowledge. A Vernon Parish botanist is ...

(NEXSTAR) – You may have managed to dodge the dreaded rashes often associated with poison ivy, poison oak or poison sumac, but that doesn’t necessarily mean you’re not allergic. While it’s true that a ...