Opensight Herbicide with aminopyralid and metsulfuron 20 ounce bottle Controls more than 150 key weed and brush species, including thistles, wild carrot, poison hemlock, goldenrods, dandelion, false dandelion, marestail, knapweeds, blackberry, black and honey locust, wisteria and tree-of-heaven Combines the proven performance of aminopyralid and metsulfuron in a convenient dry-granule formulation to provide broader control with less effort Soil residual offering season-long control of germinating and emerging seedlings of hard-to-control noxious weeds Low use rates (1.5 to 3.3 ounces per acre) Unless otherwise directed, applications of Opensight must include a mixture of crop oil concentrate, methylated seed oil, or nonionic surfactant. Omni Supreme or Dyneamic are perfect for this application.