Xonerate for poa control presents some challenges

As we wrote earlier this year, the new poa control product, Xonerate (amicarbazone), has shown good activity against poa. But we also mentioned that its safety on bentgrass, bermudagrass and ryegrass is not consistent, and that it is not even labeled for use on greens.

Since the product's introduction, there have been rave reviews, but there have also been some turf safety problems, such as those reported from The Country Club at Castle Pines in Colorado. The superintendent at Castle…