Canadian Thistle control

Asked June 13, 2018, 6:13 PM EDT

We are having difficulty controlling Canadian Thistle with Roundup. Do you have another weed spray you recommend? How about using goats?
Bart Johnson

Park County Colorado

1 Response

The active ingredient in roundup is not ideal for canada thistle control. I also don't think goat grazing is going to adequately control it either...not a pleasant eating experience for them.

We have a good fact sheet available at that goes into several control options for canada thistle, including some better choices for herbicides.

I hope this is helpful!