Bennett from Houma, La writes
Certainty Herbicide is a great option for annual bluegrass (or poa annua), in a zoysia lawn. The mixing rate is 3-5 small scoops or 1-2 large scoops per gallon of water per 1,000 sq. ft. It is strongly recommended to also use a surfactant with this product to increase the effectiveness.
Answer last updated on: 09/11/2017
