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Celery – Insects Midwest Veg Guide 2022 95 Malathion 5EC (malathion) | Use 5EC formulations at 1.5 pts. per acre and 57EC formulations at 2.4 pts. per acre. Do not exceed 2 applications per season. Allow 7 days between applications. REI: 24-hour. REI: 12-hour. PHI: 7-day. IRAC 01B. Mustang Maxx (0.8) (zeta-cypermethrin) | 3.2-4.0 fl. oz. per acre. Allow 7 days between applications. Do not exceed 24 fl. oz. per acre per season. REI: 12-hour. IRAC 03A. RUP. Verimark (1.67SC) (cyantraniliprole) | 5.0-13.5 fl. oz. per acre. For armyworm and looper caterpillars and carrot weevil beetles. Apply as a soil treatment at-plant. Do not exceed 30.6 fl. oz. per acre per season. REI: 4-hour. PHI: 0-day. IRAC 28. Vydate L (2WSL) (oxamyl) | 4 pts. per acre. Michigan and Ohio only. Apply as a soil-directed spray with at least 20 gals. water per acre, incorporated 2-4 inches deep by water or mechanical means. Allow 14 days between applications. Do not exceed 5 total applications, or 24 pts. per acre per season. REI: 48-hour. PHI: 21-day. IRAC 01A. RUP. Caterpillars There are many caterpillar pests of celery, including cabbageworms, diamond back moth caterpillars, earworms, corn borers, cutworms, loopers, and armyworms. Always check the label for the specific list of caterpillars that the product can be used on. Apply preventative treatments within 4 weeks of harvest. Treat as needed before that. Pesticide Avaunt (30WDG) (indoxacarb) | 3.5 oz. per acre. For armyworms, and loopers. Allow 3 days between applications. Do not exceed 56 oz. per acre per season. REI: 12-hour. PHI: 3-day. IRAC 22. Baythroid XL (1EC) (beta-cyfluthrin) | 0.8-3.2 fl. oz. per acre. For armyworms, cutworms, and loopers. Use high rate for armyworms and target 1st and 2nd instar caterpillars. Allow 7 days between applications. Do not exceed 12.8 fl. oz. per acre per season. REI: 12-hour. PHI: 0-day. IRAC 03A. RUP. Brigade 2EC (bifenthrin) | For armyworms, cutworms, and loopers. Use 2EC formulations at 2.1-6.4 fl. oz. per acre and do not exceed 32 fl. oz. per acre per season. Use 10DF, 10WP, or 10WSB formulations at 5.3-16 oz. per acre and do not exceed 80 oz. per acre per season. Allow 7 days between applications. REI: 12-hour. PHI: 7-day. IRAC 03A. RUP. Bt (Bacillus thuringiensis) products for caterpillars (Bacillus thuringiensis aizawai strain ABTS-1857, Bacillus thuringiensis aizawai strain GC-91, Bacillus thuringiensis kurstaki strain ABTS-351, Bacillus thuringiensis kurstaki strain EVB-113-19, Bacillus thuringiensis kurstaki strain SA-11) | For armyworms, cutworms, and loopers. Various Bt products are available for control of young caterpillars (Agree, Biobit, Dipel, Javelin, etc.) Different Bt subspecies have different control properties. Check labels for rates, timing of application and required safety equipment. REI: 4- hour. PHI: 0-day. IRAC 11A. Confirm 2F (tebufenozide) | 6-8 fl. oz. per acre. For armyworms, and loopers. Do not exceed 40 fl. oz. per acre per crop. REI: 4-hour. PHI: 7-day. IRAC 18. Coragen (1.67SC) (chlorantraniliprole) | 3.5-7.5 fl. oz. per acre. For armyworms, and loopers. Can be applied as a foliar spray or soil treatment. Allow 3 days between foliar applications and 10 days between soil applications. Do not exceed 15.4 fl. oz. per acre per season. REI: 4-hour. PHI: 1- day. IRAC 28. Durivo (SC) (thiamethoxam, chlorantraniliprole) | 10-13 fl. oz. per acre. For armyworms, and loopers. Apply as a soil treatment. Do not exceed 13 fl. oz. per acre per season. REI: 12-hour. PHI: 30-day. IRAC 04A, IRAC 28. Entrust SC (2) (spinosad) | For armyworms, and loopers. Use 2SC formulations at 1.5-8.0 fl. oz. per acre and do not exceed 29 fl. oz. per acre per season. Use 80WP formulations at 0.5-2.5 oz. per acre and do not exceed 9 oz. per acre per season. Allow 4 days between applications. REI: 4-hour. PHI: 1-day. IRAC 05. OMRI-listed. Exirel (0.83SE) (cyantraniliprole) | 7.0-17.0 oz. per acre. For armyworms, and loopers. Allow 5 days between applications. Do not exceed 61.7 fl. oz. per acre per season. REI: 12-hour. PHI: 1-day. IRAC 28. Intrepid 2F (methoxyfenozide) | 4-10 oz. per acre. For armyworms, and loopers. Use 4-8 fl. oz. per acre in early season, and 8-10 fl. oz. per acre on mid and late season. Do not exceed 64 fl. oz. per acre per season. REI: 4-hour. PHI: 1- day. IRAC 18. Lannate LV (2.4L) (methomyl) | 1.5 - 3.0 pts. per acre. For armyworms, cutworms, and loopers. Do not exceed 21 pts. per acre per season. REI: 48-hour. PHI: 7-day. IRAC 01A. RUP. Mustang Maxx (0.8) (zeta-cypermethrin) | 2.24-4.0 fl. oz. per acre. For armyworms, cutworms, and loopers. Allow 7 days between applications. Do not exceed 24 fl. oz. per acre per season. REI: 12-hour. PHI: 1-day. IRAC 03A. RUP. Perm-Up 25DF (permethrin) | For armyworms, and loopers. Use 25W, 25WP or 25DF formulations at 6.4-12.8 oz. per acre and do not exceed 64 oz. per acre per season. Use 3.2EC