Help us search high and low for one of the most devious and devastating of all of the invasive weeds, knotweed! You must be able to navigate over uneven terrain and through thick vegetation. Long sleeves and pants are recommended. Training, tools, and gloves provided at all events. Please wear sturdy, closed-toed shoes – rainboots provided upon request. We provide snacks, so please let us know if you have special dietary needs! Sign up online. Find out more ›