Many harmful weeds, such as poison ivy and poison oak, contain urushiol, causing rashes and blisters. Weeds like giant hogweed and wild parsnip produce sap that can lead to severe skin burns upon ...

UNION, IA -- When you venture outside this summer, be on the lookout for Wild Parsnip. The poisonous weed grows in nearly all 50 states and causes burning and itching sensations. Parsnip looks like a ...

Add Yahoo as a preferred source to see more of our stories on Google. If you're heading outdoors this summer, it pays to know the difference between poison ivy, poison oak and other rash-producing ...

Weeding is a task us gardeners are relentlessly trying to keep on top of from spring to fall. In the haste of clearing up your garden beds, you might not realize you're coming into contact with ...

Summer is in full bloom and so are plants and weeds that can cause you harm. Outdoor enthusiasts, gardeners and just about everyone else should know about poison ivy, poison oak, poison sumac and ...

As spring arrives, bringing longer and warmer days, nature awakens from its winter slumber and with it, a few unwelcome visitors. Among them are two particularly invasive and toxic plants: poison ...

Poison hemlock, a deadly plant that can cause respiratory failure and death, is spreading throughout the U.S. Contact herbicides are the safest way to control poison hemlock, as all parts of the plant ...