Bacterial Disease on Creeping Bentgrass
In a recent publication in Plant Disease researchers from Michigan State University report the first bacterial disease on creeping bentgrass (Agrostis stolonifera) in the United States. The disease was reported on Penn G-2 on greens from a golf course in North Carolina. The symptoms are similar to bacterial wilt on Poa annua caused by Xanthomonas translucens pv. poae. The bacterium that causes the bacterial disease on creeping bentgrass was identified in the Acidovorax genus. The bacterium was confirmed as the causal agent through Koch’s postulates.
This past summer in the United States turf decline has been reported due to bacteria. Caution should be practiced when bacteria assumed to be the problem. On creeping bentgrass and Poa annua greens under stress, it is common to find bacteria. However, it appears now that certain genus of bacteria can attack at least a few creeping bentgrass cultivars under high stress conditions.