Postemergence Polygonum aviculare control in Cynodon dactylon turf

Peer-reviewed research is not available to explain Polygonum aviculare L. (prostrate knotweed) control in Cynodon dactylon (bermudagrass) turf, yet P. common and troublesome managed C. turf. Six experiments were conducted determine options for golf roughs Hanover, VA. Studies evaluated hormone, photosystem, ALS inhibiting herbicides. Among a group of eighteen herbicide treatments, only six controlled over 80% these included single products or mixtures containing 2,4-D, dicamba, metsulfuron, chlorsulfuron. Imazaquin, quinclorac, triclopyr caused transient injury. Treatments dependent on bromoxynil, triclopyr, clopyralid, metribuzin, rimsulfuron, imazaquin, foramsulfuron, flazasulfuron, trifloxysulfuron sodium, sulfosulfuron are unlikely adequately