I'm unhappy with the late winter control of poa. In last couple of years I took a position in a company where I'm in control of chemical division. I'm familiar with what many other companies use in my area and I've used Simtrol (Simazine) for Fall Pre Emergent. The poa is really noticeabe in late Dec thru early Mar. You don't notice it really unless you walk the lawn. The lawns are clean except for the Poa, what can I do guys. I'm new here so take it easy on me!