Nathan from Saint Cloud, Minnesota writes
I have a 0.40 acre lot that is infested with quackgrass. I am not sure what the grass type is, but I live in Minnesota. Will Certainty eradicate the quackgrass and is 1.25 oz enough?
Certainty is labeled to control quackgrass and is safe to apply on warm season grasses. If you are unsure of your grass type we would recommend contacting a local lawn care company to help determine the type. Without knowing for sure what your lawn is we cannot say that Certainty would be the product to use.
Answer last updated on: 06/03/2014