you can also use FELLS-NAPTHA laundry soap[it's the old brown soap that grandma said "she was going to wash your mouth out with if you say that again"]to wash your hands and tools.I had to work in that crap for over 30 yrs.The roots are the worst part of the plant.Tech-nu works well if you've been exposed.Use the herbicide and leave the plant in place until it's brittle dry.READ THE DIRECTIONS CAREFULLY