Quote:
Originally Posted by Carlsondm
I would ask the neighbor to install a barrier to control spreading. This is a Very invasive blant. We had it up in Michigan .. planted by our kids. It was nasty there. We were told to cut the stalks straight across and immediately (within 30 seconds) paint on brush killer A or what ever the strong stuff is. You want to hit it before the plant heals or capillaries close. Remove rhizomes when possible.
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Yes. The chemical is TRICHLOPYR. it is made by Bayer and I bought it at Lowe’s. It’s a systemic. Above instructions are correct. Apply it before the wound on the plant has time to heal. Be cautious with it and read package directions.