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.

Q: I have some poison ivy in my backyard, and I am very allergic, so I’d rather not touch it. Are there herbicides that will kill it, and when is the best time to apply them? Write to the Missouri ...

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 ...