I am trying to eradicate the Japanese Knotweed from my yard in South Minnespolis. It’s very established; it was in my yard when I bought my house 30 years ago and FINALLY, about a year ago, someone was able to identify it. Since then I’ve been cutting the cane about 1” from the ground and immediately dabbing it with Stump-out, Stump and Vine Killer (with triclopyr); I put food coloring in it so I can see that the cut part been treated. Is this an effective treatment?
I’ve been putting the waste in plastic bags and then into the garbage that’s heading to the incinerator. However, I was told by the city solid waste department that it has to go in with yard waste. I understand that large scale composting gets much hotter than home composting, will this kill the rhizomes, or could I effectively compost it myself in heavy black plastic bags with other yard waste? I don’t want to be responsible for allowing it to spread.
Hennepin County Minnesota
Greetings! Thank you for contacting AaE for help.