Bought our house last fall, found out in the spring we have a lovely crop of knotweed. Any tips for eradicating this asshole for good?
by gassygeff89
Bought our house last fall, found out in the spring we have a lovely crop of knotweed. Any tips for eradicating this asshole for good?
by gassygeff89
14 Comments
It is going to take years and years, especially by that waterway. Start pulling it now and make sure you get the roots.
It’s a test of attrition when it comes to knot weed… you need to just keep pulling and pulling till you deplete it… if you have goats put up a fence in that zone and let them go at it once a week…they are masters of winning those kinds of contests…
This is a good guide: https://www.thespruce.com/eradication-of-japanese-knotweed-plants-2131201
Grab those bastards when they first shoot up as close to the ground as you can and yank.
Put them in a pile to dry out and then burn or dispose of.
They spread via rhizomes underground.
Repeat next year.
It will take many battles to win this war. The only other way is to hit them with glyphosate. Like inject or paint each individual shoot.
Underground spread through the root system. Very difficult to eradicate.
You in east Tennessee? Looks like cocke/sevier county.
Pray. The most effective way is aggressive chemicals like glyphosate, ideally in the late summer/fall. Even then expect to retreat several times, every 2-3 weeks, and possibly needing to do the same next year The next best way is manual cutting every 10 days or so, but you have to be thorough and get the whole stand. Root removal will technically work, but is difficult even for small stands.
I heard the shoots are edible but I haven’t had a successful try at it yet
Some people think it’s drugs but it’s knotweed 🤠
https://metrovancouver.org/services/regional-planning/Documents/knotweeds-best-management-practices.pdf
That’s what is recommended in BC. Chemicals are the go to for most applications as it’s extremely resistant to being pulled up.
Pull and dig during the spring, chemicals in the late summer and fall. I’ve been fighting an infestation for the last six years, but its going well at this point.
Just here to say good luck, you’re fucked!
Call your county noxious weed eradication board if you have one. Its a very invasive species and hard to eradicate. They have licenses and permits to correctly use special herbicide with an injector that will actually kill it.
No amount of pulling weeds or spraying roundup will kill knotweed. And it is extremely invasive and spreads quickly. Call the pros.
Somatic g is an option. Water the area, put clear plastic over it, seal the edges with soil, wait two weeks. It must be sunny for this to work. Also, keep cutting off the growth when it gets a few inches high. The root system stores energy for spring growth. It will keep using energy without resupplying it with energy.
There was a hill here that was overrun with knotweed. The city hired a company to eradicate it. It took about 4 years but the eradication was a success. The company worked that hill every spring, picking every visible node and removing it all. Only one week every year for 4 years. It was a hill surrounded by concrete on all sides