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Prnum Pesticide(MFG) Commodity (Crop Group) Category (Code) EPA Status 14039 S-METOLACHLOR/METOLACHLOR SYNGEN,UPL NA MINT (25AB = HERB FRESH AND DRIED LEAVES SUBGROUP) UNDER EVALUATION (06) Reasons for need: Summer annual weeds. Lack of herbicide or other weed management options after cutting/harvesting mint:07/25; Efficacy/Crop Safety (E/CS) Data Required: E/CS Research Comments: Comments: This is an export commodity. Field Res.Dir (FRD) Field ID# Field Data Track# Raw Data Data to MFG Performance Results & Comments Meyers, Stephen L (NCR) 23-IN-DMP RECD 5721.pdf 03/24 Dual Magnum applied post-cut at 16 fl oz/a (0.95 lb ai/a) to peppermint growing in a loamy sand. Crop injury ranged from 2 to 16% throughout the trial and was 16% at 10 weeks after treatment. Crop height reductions from s-metolachlor were not different from the weed-free check. Mint biomass not different from untreated. Light weed pressure in trial resulted in low weed counts in herbicide treatments. Meyers, Stephen L (NCR) 23-IN-DMP RECD 5721.pdf 03/24 Dual Magnum applied post-cut at 16 fl oz/a (0.95 lb ai/a) to peppermint growing in a sandy loam. Slight crop injury (≤ 7%) through 4 weeks after treatment (WAT) but increased to 19% at 8 WAT and was 6% at 12 WAT. No significant crop height reductions seen. Mint biomass was not different from untreated. Light weed pressure in trial resulted in low weed counts in herbicide treatments.