I was too busy to do my annual knotweed extermination
Easy to kill ... In September, squirt 40% glyphosate inside the stem
Look on YouTube
glyphosphate shouldn’t be used for anything.
—” squirt 40% glyphosate inside the stem”
On one side we and our neighbor both have a fence, about one foot apart, he also has a thick hedge line. Been like that for about 70 years and was becoming a fire hazard.
We decided to CAREFULLY spray Roundup.
It killed my lawn a few feet in from the fence and in places you could see my footprints as I tracked it around.
Mostly recovered after about five years.