A:   The yucca, sage, and cheatgrass can all be expensive and troublesome weeds to control on rangeland. For the yucca, Cimarron Plus is now labeled and has an approximate cost of $7.75 to $15 per acre at rates of 0.65 to 1.25 oz. per acre. Other yucca herbicides (that will also control sage) are typically done by spot treatments are Tordon 22K, Velpar L, or Remedy. The amount of cheatgrass can vary from year to year depending on precipitation patterns, Some have had limited control success by heavy early grazing of the cheatgrass. Glyphosate (1 pt. per acre) can be used in early spring or late fall as well but the key is timing so that most of the desirable grasses are dormant. On your rangeland, there will be some cool-season grasses (needle and thread, western wheatgrass, or sedges) that may be damaged.