Getting Rid of Thistle?

Only one thing, ROUNDUP. It does not affect the soil. It will kill anything it touches, so be careful, but it will kill root and all, after 3-4 days, you can till the thistle under or easily pull it out root and all.

We found using Weed Be Gone works. You spray it at the base of the thistle bush and wait how ever long it say's to on the bottle and after the time is up you pull the hole thing out root's and all. You will have to keep doing this until all of them are gone but it sure does help we still have them but not quiet as many any more. I sure hope this will help.

Polly Munson

June 27, 20080 found this helpful

We have 160 acres and had several acres of Canadian thistle to get rid of. I couldn't waste time spraying anything that did not work well and kill the roots. I have sprayed with Curtail by Dow for about three years. It is an excellent product and it kills the tops and roots.

harryz4

May 22, 20180 found this helpful

best way to kill canadian thisle

 

If you want a method that does not include the use of harsh chemicals, there is another way. No chemical really ever gets rid of Canadian thistle, anyways. Thistle thrives in less nutrient-rich subsoil, which will be increased by the use of chemicals which keep nutrients out of the soil. Thistle actually doesn't like topsoil! If there are enough other plants and compost contributing to the health of the soil you shouldn't really have a problem with thistle.

It is a pioneer plant which decomposes to create better soil for other plants, and using this information will help you get rid of it. So finally to the method. Cut the thistle down to 6 inches above the soil, BEFORE IT GOES TO SEED, and use the clippings as mulch, then add manure, or compost if you don't have access to manure. Finally add seaweed if you have access to it, because it speeds the process. The thistle will thin out and be gone by the 3rd year. I personally don't consider it to be enough of a problem to use round-up and as long as you keep you soil rich it won't come back.

Th best time to spray thistle (use Roundup) is in the late summer to fall BEFORE the flower goes to seed. If you do it when they begin to flower, they are at their most productive time and therefore when the poison hits, it can really hurt the plant. This was advice from our county weed crew.

JodyC

bleach-killed-clorox