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 ...
Add Yahoo as a preferred source to see more of our stories on Google. Close up of poison ivy leaves - Robert Winkler/Getty Images When the snow is falling and the yard is asleep, poison ivy's ...
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