Release you inner assassin! Help us destroy the Japanese Knotweed growing at the Acton Canoe Launch. This is a rare weekday evening work party: meet at 6PM Thursday August 17. Knotweed is too hard to kill, so our control plan is: Chop it to the ground several times a year, and encourage other native plants so they will shade it out. Please contact Joe Holmes (Joseph.Holmes@alum.mit.edu, 978-635-1982) if you can come, so I know how many are coming.