WEED CONTROL Herbicide Residue Broadstrike + Treflan (flumetsulam + trifluralin) is available only as a prepackaged product. The amount of trifluralin applied when Broadstrike + Treflan is applied at the labeled rate of 1.5 to 2.25 pt/A is 0.63 to 0.96 lb ai/A, respectively. Therefore, precautions in crop rotation would apply as if trifluralin was applied alone at 0.63 to 0.96 lb ai/A. Rotational crop restrictions for Broadstrike + Treflan are found on page 64 of the 1996 North Dakota Weed Control Guide in the table, "Rotation Restrictions for Crops Grown in North Dakota". Refer to paragraph E21 for additional information on trifluralin.