Issue link: http://read.uberflip.com/i/1431041
Sweet Potato – Weeds 289 Aim EC (2) (carfentrazone) POST | 0.5-2 fl. oz. per acre. Apply as a burndown application prior to transplanting or apply with a hooded sprayer as a directed application between crop rows. Add 1 qt. COC (1% v/v) or 0.5 pt. NIS per 25 gal. of spray solution (0.25% v/v). Weeds must be actively growing and less than 4 in. tall. Do not allow spray to contact crop. Do not exceed 11.6 fl. oz. per acre per season. REI: 12-hour. PHI: 7-day. HRAC 14. clethodim products (clethodim) POST | Use 2EC formulations at 6-16 fl. oz. per acre with 1 qt. COC per 25 gals. of spray solution (1% v/v). Do not exceed 32 fl. oz. per acre per season. Use Select Max at 9-32 fl. oz. per acre with 0.5 pt. NIS per 25 gals. of spray solution (0.25% v/v). Do not exceed 64 fl. oz. per acre per season. Use low rates for annual grasses and high rates for perennial grasses. Spray on actively growing grass. Wait at least 14 days between applications. REI: 24-hour. PHI: 30-day. HRAC 01. Command 3ME (clomazone) PRE | 1.4-4.0 pt. per acre. Use a lower rate on coarse textured soils. Apply in a single application immediately after transplanting and before weeds emerge. When used alone, may not adequately control pigweed species and does not control carpetweed. REI: 12- hour. PHI: 95-day for rates up to 3.3 pt. per acre, 125-day for rates over 3.3 pt. per acre. HRAC 13. Dacthal Flowable (6F) (DCPA) PRE | 6-14 pts. per acre. Apply at transplanting or at layby up to 6 weeks after transplanting. May be applied over the top of transplants. REI: 12-hour. HRAC 03. Devrinol DF-XT (50) (napropamide) PRE | 2-4 lbs. per acre. Apply immediately after transplanting. If rain does not occur within 24 hours, incorporate shallowly or irrigate with 0.5 inch of water. REI: 24-hour. HRAC NC. Dual Magnum (7.62EC) (s-metolachlor) PRE | 1.0-1.3 pts. per acre. Illinois, Indiana, Michigan, Minnesota, and Missouri only. IL 24c exp. 03/25/24. MI 24c exp. 12/31/21. MN 24c exp. 12/31/25. MO 24c exp. 07/22/26. Apply after transplanting but before weeds emerge. Do not incorporate into soil. Close transplant trenches before application. Dual Magnum applied shortly after transplanting and followed by moderate to heavy rainfall or irrigation can result in reduced yields and misshapen storage roots. Crop safety is improved by 10-14 days after transplanting when Dual Magnum can be used as a layby application prior to canopy closure. REI: 24-hour. PHI: 60-day. HRAC 15. Fusilade DX (2EC) (fluazifop-P) POST | 10-12 fl. oz. per acre. Add 1 qt. COC (1% v/v) or 0.5 pt. of NIS per 25 gals of spray solution (0.25% v/v). Apply to actively growing grass. Do not exceed 4 applications or 48 fl. oz. per acre per season. REI: 12-hour. PHI: 14-day. HRAC 01. glyphosate products (glyphosate) POST | 0.75- 3.75 lbs. acid equivalent (ae) per acre. Use formulations of 3 lbs. ae per gal. (4 lbs. isopropylamine salt per gal.) at 1-5 qts. per acre or formulations containing 4.5 lbs. ae per gal. (5 lbs. potassium salt per gal.) at 0.66-3.3 qts. per acre. Broadcast before planting, or apply between crop rows with wipers or hooded or shielded sprayers. Use low rate for annuals and higher rates for perennials. REI: 4-hour to 12-hour. PHI: 14- day for foliar applications directed between rows, 7-day for wiper applications. HRAC 9. paraquat products (paraquat) POST | 1-2 pt of 2 lb. per gal. formulation. Add 1 qt. COC (1% v/v) or 0.5 pt. NIS (0.25% v/v) per 25 gal. of solution and apply to emerged weeds less than 6" tall prior to transplanting. Certified applicators must successfully complete an EPA-approved training program before mixing, loading, and/or applying paraquat. REI: 12 to 24-hour. HRAC 22. RUP. Valor SX (51WDG) (flumioxazin) PRE | 2-3 oz. per acre. Apply to prepared planting beds prior to transplanting. Do not use on greenhouse-grown transplants, or on transplants harvested more than 2 days before transplanting. Do not use on varieties other than Beauregard unless you have tested for phytotoxicity under your conditions. Provides suppression of many grass weeds. REI: 12-hour. HRAC 14. Midwest Veg Guide 2022