WEED CONTROL Herbicide Residue Broadstrike + Dual (flumetsulam + metolachlor) is available only as a prepackaged product. Dual has few rotation restrictions and all crops can be planted the following year. Consult the Dual label for rotation restrictions within the same year as Dual application. Rotational crop restrictions for Broadstrike + Dual are found on page 64 of the 1996 North Dakota Weed Control Guide in the table, "Rotation Restrictions for Crops Grown in North Dakota". For Field Bioassay Instructions refer to paragraph E3.