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2022 Midwest Vegetable Guide

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Sweet Corn – Insects Midwest Veg Guide 2022 275 European corn borer and fall armyworm. It is moderately effective on western bean cutworm, and in some places is no longer effective on corn earworm. There are reports of corn earworm resistance in North Carolina field corn, and sweet corn in Maryland. Seminis Performance Series has these traits. Vip3A is the only effective protein on corn earworm, western bean cutworm, and fall armyworm. Syngenta Attribute II and Attribute Plus series corn has both Vip3A and Cry1Ab traits. IRAC 11A. Capture LFR (1.5) (bifenthrin) | For armyworms, corn borers, cutworms, and earworms. Apply to soil as pre-plant or pre-emergent application at 0.2-0.78 fl. oz. per acre per 1,000 linear ft. row at planting, or as a foliar spray at 2.8-8.5 fl. oz. per acre. Do not exceed 17 fl. oz. per acre per season. REI: 12-hour. PHI: 1-day. IRAC 03A. RUP. Coragen (1.67SC) (chlorantraniliprole) | 3.5-7.5 fl. oz. per acre. For armyworms, corn borers, cutworms, and earworms. Do not exceed 15.4 fl. oz. per acre per season. REI: 4-hour. PHI: 1-day. IRAC 28. Entrust SC (2) (spinosad) | For armyworms, corn borers, cutworms, and earworms. Use 2SC formulations at 1.5-6.0 fl. oz. per acre and do not exceed 21 fl. oz. per acre per season. Use 80WP formulations at 0.5-2.0 oz. per acre and do not exceed 9 oz. per acre per season. Allow 7 days between applications. Observe resistance management restrictions. REI: 4-hour. PHI: 1-day. IRAC 05. OMRI-listed. Ethos 3D (bifenthrin, Bacillus amyloliquefaciens strain D- 747) | 0.21 to 1.05 fl. oz per 1,000 linear feet of row . Armyworm and cutworm caterpillars. Apply in-furrow with seed. Must be applied with a 3RIVE 3D system. Do not apply more than 0.2 lb. bifenthrin active ingredient per acre per season. REI: 12-hour. IRAC 03A, FRAC 44. RUP. Force CS (2.1SC) (tefluthrin) | For cutworms. Apply Force Evo (2.1CS) at 0.46-0.57 fl. oz. per 1,000 linear ft. of row. Apply Force 6.5G at 1.8-2.3 oz. per 1,000 linear ft. of row. Apply Force 3G at 3-4 oz. per 1,000 linear ft. of row. Apply Force 10G HL at 1.25-1.5 oz. per 1,000 linear ft. or row. Apply at planting. Do not exceed 1 application per crop. REI: 48-hour. IRAC 03A. RUP. Helicovex (0.6) (Helicoverpa armigera nucleopolyhedrovirus strain BV-0003) | 0.5-2.5 fl. oz. per acre. For corn earworm only. Apply 0.5-1.5 fl. oz. per acre every 3 days during silking. REI: 4-hour. PHI: 0-day. IRAC 31. OMRI-listed. Lannate LV (2.4L) (methomyl) | 0.75 - 1.5 pts. per acre. For armyworms, corn borers, cutworms, and earworms. Do not exceed 21 pts. per acre per crop. Has ovidical properties. Some varieties are susceptible to methomyl injury, determine crop safety before full scale spraying. REI: 48-hour. PHI: 0- day for ears, 3-day for forage. IRAC 01A. RUP. Mustang Maxx (0.8) (zeta-cypermethrin) | 2.8-4.0 fl. oz. per acre. For armyworms, corn borers, cutworms, and earworms. Do not exceed 24 fl. oz. per acre per season. REI: 12-hour. PHI: 3-day. IRAC 03A. RUP. Perm-Up 25DF (permethrin) | For armyworms, corn borers, cutworms, and earworms. Use 25W, 25WP, and 25DF formulations at 6.4-12.8 oz. per acre and do not exceed 51.2 oz. per acre per season. Use 3.2EC formulations at 4-8 fl. oz. per acre and do not exceed 32 fl. oz. per acre per season. Apply every 3-5 days as needed. Control is poor when temperatures are above 90 degrees F. REI: 12-hour. PHI: 1- day. IRAC 03A. RUP. Radiant 1SC (spinetoram) | 3-6 fl. oz. per acre. For armyworms, corn borers, cutworms, and earworms. Do not exceed 36 fl. oz. per acre per season. Do not make applications less than 4 days apart. The only cutworm labeled is the western bean cutworm. REI: 4-hour. PHI: 1-day for ears. 3-day for forage. IRAC 05. Sevin XLR Plus (4SC) (carbaryl) | 2 qts. per acre. For armyworms, corn borers, earworms and Western bean cutworm only. Do not exceed 8 applications or 16 qts. per acre per season. Machine harvest only. REI: 12-hour. PHI: 2- day for ears. 14-day for forage. IRAC 01A. Warrior II (2.08CS) (lambda-cyhalothrin) | For armyworms, corn borers, cutworms, and earworms apply foliar applications at 1.28-1.92 fl. oz. per acre. For cutworm caterpillars and corn rootworm larvae apply a soil application at 0.33 fl. oz. per 1,000 ft. of row. Apply in furrow or as a 5- to 7-inch band. Do not exceed 30.72 fl. oz. per acre per season. Do not exceed 30.72 fl. oz. per acre per season. REI: 24-hour. PHI: See label. IRAC 03A. RUP. Corn Rootworm Beetles If few or no rootworm beetles were present in the field in the previous year, or you grew sweet corn in a field the previous year and followed a regular spray schedule during silking, there is little chance of a damaging infestation. Corn rootworm adults may prevent pollination by feeding on green silks. Treat when silks are being clipped. Pesticide Assail 30SG (acetamiprid) | Use 30SG formulations at 4.0- 5.3 oz. per acre and do not exceed 11.2 oz. per acre per season. Use 70WP formulations at 1.7-2.3 oz. per acre and do not exceed 4.8 oz. per acre per season. Allow 7 days between applications. REI: 12-hour. PHI: 7-day. IRAC 04A. Baythroid XL (1EC) (beta-cyfluthrin) | 0.8-2.8 fl. oz. per acre. For armyworms, corn borers, cutworms, and earworms. See label for pest-specific rate recommendations. Do not

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