What can I do to get rid of numerous patches of quack grass in my lawn?
Brown County South Dakota
Quack grass can be difficult to get rid of because of the underground root system (Rhizome) and how quickly it can spread into locations where its difficult to apply herbicide - and this includes home lawns as much as the garden. The best time for control is in the fall - with an application of round up (glyphosate). You can apply this in the spring but you will only kill the tops and not the root system. A fall application should work its way into and kill the Rhizomes.