Long term studies on poa control on greens

In their recent Golfdom article, "Annual bluegrass control on greens", researchers Matt Sousek and Zac Reicher went looking for long term studies (more than three years) that evaluated different herbicides and growth regulators for their ability to control poa, and to avoid damage to bentgrass. They focused on studies conducted in the North Central U.S. — specifically, on six separate studies conducted in Nebraska, Michigan and Indiana.

The results were in some ways disappointing, because they revealed what almost everyone…