Jeannie from Chadds Ford, Pa 19317 writes,
What Herbicide can I use to kill Japanese Knotweed?
Battleship is our most popular herbicide for knotweed control. Battleship III gives you superior post-emergent control of tough broad-leaf weeds on lawns and other landscaped areas. Its 2,4-D free formulation is effective in cool and warm-season turf. The advanced "three-way" formulation contains Triclopyr, Fluroxypyr and MCPA in an easy-to-use liquid formulation.
Answer last updated on: 07/23/2012