Archie, I'm using a quart of Simazine, 67 oz Aquacap (2 # a.i.), 1.5 quarts 2,4-D ester and 6 oz of a product called Generation (surfactant)....and it takes care of any poa. brandtconsolidated.com click on parkway research to get your contact info. I think there is a new rep that covers Mississippi and Alabama. Good luck!