Japanese Knotweed Autumn Update Post author:dan Post published:October 31, 2018 Post category:Japanese Knotweed survey The spraying season might be coming to a close, however, it’s still there! If you’re selling a property with Japanese Knotweed, don’t forget to declare it and get that Management Plan in place. You Might Also Like Japanese Knotweed giving you the run around? February 24, 2019 Last Chance for Japanese Knotweed spraying. November 7, 2018 Never give Japanese Knotweed a chance to establish itself June 17, 2019