Will Roundup Kill Rhizomes?

Broadleaf herbicides like Roundup do not always work on tuberous rhizome weeds and often accidentally kill desired plants instead. ... Given the environmental and health impact of herbicides, it's best to avoid this approach.

How do you kill a rhizome?

Apply glyphosate or halosufuron to the weeds when they're still in a growing phase. The chemicals will penetrate the tubers if the plant hasn't reached maturity. To control the weeds before they emerge, apply dichlobenil in areas with no grass.

How do I get rid of rhizomes in my lawn?

Mow or (better yet) weed-eat the grass area as low as possible, ideally to the ground. Then rake up and remove any grass/rhizomes/stolons. Lay down a half-inch layer of compost over the entire area. This will stimulate biological activity.