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2022 Midwest Vegetable Guide

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Mint – Weeds 214 Radiant 1SC (spinetoram) | 4-12 fl. oz. per acre. For armyworms, cutworms, and loopers. Do not exceed 39 fl. oz. per acre per season or 4 applications per season. Allow 4 days between treatments. REI: 4-hour. PHI: 7-day. IRAC 05. Flea Beetles Pesticide Actara (25WDG) (thiamethoxam) | 1.5-3.0 oz. per acre. Do not exceed 12 oz. per acre per season. Allow 14 days between applications. See pollinator precautions. REI: 12-hour. PHI: 7-day. IRAC 04A. Lannate LV (2.4L) (methomyl) | 2.25-3 pts. per acre. Do not exceed 6 pts. per acre per crop or 4 applications per crop. For best results, apply immediately after harvest on stubble. REI: 48-hour. PHI: 14-day. IRAC 01A. RUP. Malathion 5EC (malathion) | Use 5EC formulations at 1.5 pts. per acre. Use 57EC formulations at 1.0-1.5 pts. per acre. Do not exceed 3 application per year. Allow 7 days between applications. For best results, apply immediately after harvest on stubble. REI: 12-hour. PHI: 7-day. IRAC 01B. Mites Squirrelly mint, which occurs primarily on peppermint, is caused by the mint bud mite, Tarsonemus pipermenthae. Pesticide Acramite 50WS (bifenazate) | 0.75-1.5 lbs. per acre. Do not exceed 1 application per season. REI: 12-hour. PHI: 7-day. IRAC UN. Agri-Mek SC (0.7) (abamectin) | 8-12 fl. oz. per acre. Use 0.7SC formulations at 1.75-2.5 fl. oz. per acre. Do not exceed 7.75 fl. oz. per acre per season or 3 applications per season. Allow 7 days between applications. Use 0.15EC formulations at 8-12 fl. oz. per acre. Do not exceed 36 fl. oz. per acre per season or 3 applications per season. Allow 7 days between applications. REI: 12-hour. PHI: 28-day. IRAC 06. RUP. Dicofol 4E (dicofol) | 1.75-2.5 pts. per acre. Do not exceed 1 application per season. REI: 32-day. PHI: 30-day. IRAC UN. Portal (0.4EC) (fenpyroximate) | 1-2 pts. per acre. Do not exceed 4 pts. per acre per season or 2 applications per season. Allow 7 days between applications. REI: 12-hour. PHI: 1- day. IRAC 21A. Zeal (72WP) (etoxazole) | 2-4 oz. per acre. Do not exceed 4 oz. per acre per season or 1 application per season. REI: 12- hour. PHI: 7-day. IRAC 10B. Mint – Weeds Reviewed by Stephen Meyers, Ben Phillips – Sept 2021 Recommended Controls All Weeds Before establishing a mint planting, reduce perennial weeds in the area to be planted with systemic broad-spectrum herbicides and/or cultivation. For full-season weed control consider combinations of dormant, in-season, and post- harvest herbicide applications. For specific weeds controlled by each herbicide, check the Relative Effectiveness of Herbicides for Vegetable Crops table. Rates provided in the recommendations below are given for overall coverage. For a banded treatment, reduce amounts according to the portion of acre treated. Non-Pesticide Because mint is grown as a short-lived perennial crop, weed management in preceding crops is important to reduce the amount of weed seeds in the soil, and good weed control in the planting year is especially important. Between-row cultivation can be used in the first year before stolons and rhizomes grow into fill in this space. Late winter or early spring cultivation can be used to control winter annual weeds. Pesticide Aim EC (2) (carfentrazone) POST | 0.5 to 1.92 fl. oz. per acre Apply before crop emergence to emerged weeds less up to 4 in. tall. Add 1 qt. COC (1% v/v) or 0.5 pt. NIS per 25 gal. of spray solution (0.25% v/v). REI: 12-hour. PHI: 5-day HRAC 14. Assure II (0.88EC) (quizalofop) POST | 8-12 oz. per acre. Add 1 qt. COC or 0.5 pt. NIS per 25 gal. of spray solution. Apply to actively growing grass. Do not exceed 2 applications or 24 fl. oz. per acre per season. Applications must be greater than 7 days apart. REI: 12-hour. PHI: 30-day. HRAC 01. Basagran (4) (bentazon) POST | Use 4L formulations at 1-2 pts. per acre and 5L formulations at 1.2-1.6 pt per acre. Apply after mint and weeds have emerged. To control yellow nutsedge and Canada thistle, repeat application 7-10 days Midwest Veg Guide 2022

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