Will this work?

[Windy_jem]

We're having a heck of a time trying to keep the Japenese knot weed knocked down and Round up for shrubs isn't even touching this stuff. We did knock down and haul out all of last years stuff from it.
If we "weed whack"" it every time it comes up will we eventually kill it? My hubby just had surgery and is unable to dig it out. Besides, the patches are pretty BIG.

[Cusingeorge]

I found this forum discussing what you are having trouble with.

Doesn't look like there is an easy answer.

http://forums.gardenweb.com/forums/l...424315941.html

[Alice In TX/MO]

The wikipedia info is interesting. I haven't heard of this weed before.

http://en.wikipedia.org/wiki/Japanese_Knotweed

Article about control:

http://landscaping.about.com/cs/weed...a/knotweed.htm

You may want to consider calling in a nuclear warhead strike.

[Ninn]

Have you tried mowing in down and then covering the little stumps with root killer? Like you would for a bigger tree?

[Yvonne's hubby]

The best way to get rid of it is to develop a market for it. It will die out overnight on its own. wont be able to get it to grow at all. This is particularly true if you have invested quite a bit of money in equipment to harvest and process it.

[beaglady]

It is supposed to be a good nectar source if you have bees.

[chickenista]

It is so evil it makes kudzu look like your buddy. In the mountains of WNC it is choking out waterways. completely. We fought it there to not much avail. If it is too close to your house, it will destroy your foundation within a very, very short time.
In England they have companies that do nothing but eradication.. burn, wait three months, burn, wait three months, burn.
But somewhere on here I read where something eats it..goats, pigs..something.
You could get a backhoe to just dig deep, deep, deep and haul off the soil and start again with hopefully fresh soil. You may get a few popups from a leftover microscopic rhisome left behind, but 1 or 2 is easier than a lot of them.
Horribel, horrible stuff. But, we did have one that bloomed a different color and was on a top of a knoll. It never spread. It never got wider, bigger, more.. I liked that one. Deep red blooms from late August all the way through to frost.

[texican]

Originally Posted by chickenista

It is so evil it makes kudzu look like your buddy. In the mountains of WNC it is choking out waterways. completely. We fought it there to not much avail. If it is too close to your house, it will destroy your foundation within a very, very short time.
In England they have companies that do nothing but eradication.. burn, wait three months, burn, wait three months, burn.
But somewhere on here I read where something eats it..goats, pigs..something.
You could get a backhoe to just dig deep, deep, deep and haul off the soil and start again with hopefully fresh soil. You may get a few popups from a leftover microscopic rhisome left behind, but 1 or 2 is easier than a lot of them.
Horribel, horrible stuff. But, we did have one that bloomed a different color and was on a top of a knoll. It never spread. It never got wider, bigger, more.. I liked that one. Deep red blooms from late August all the way through to frost.

You talking about the jap weed or kudzu?

We've been trying to get kudzu started, to no avail. It grows wild in a few places hereabouts, but not anywhere close to humans. The goats love it... we use to bring a truckload of it home and it'd disappear in minutes.