BACKGROUND:Selective control ofannualbluegrass(Poaannual L.)hasbeendifficult in turfgrasses.Thepotential ofmethiozolin in this area was investigated. RESULTS: Methiozolin was safe on established zoysiagrass (Zoysia japonica Steud.), creeping bentgrass (Agrostis palustris Huds.), Kentucky bluegrass (Poa pratensis L.), and perennial ryegrass (Lolium perenne L.) at 1000 g ha−1, and controlled a…