This year we are trying a chemical on our greens that is labeled to control the Poa-anna in the greens. If it works, we should have much improved greens this year, especially later in the season, like in March and April. We start over-seeding a little earlier then the recommended date, which means we are not sure how much Poa-anna has already germinated. And because this is a post-emergence chemical, there is no way of knowing how effective it will be.