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2022 Midwest Vegetable Guide

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Asparagus – Insects Midwest Veg Guide 2022 85 Asparagus Beetles At Harvest: Treat when 5-10% of plants are infested, or 2% of spears have eggs. At Fern: Treat when 10% of plants are defoliated, or 50% of plants have larvae. Pesticide Assail 30SG (acetamiprid) | Use 30SG formulations at 2.5- 5.3 oz. per acre and do not exceed 10.7 oz. per acre per season. Use 70WP formulations at 1.1-2.3 oz. per acre and do not exceed 4.6 oz. per acre per season. For control on spears during harvest, to prevent egg laying and feeding injury. Allow 10 days between applications. REI: 12-hour. PHI: 1- day. IRAC 04A. Dimethoate 4EC (dimethoate) | 1 pt. per acre. Use 4EC, LV-4 and 400 EC formulations at 1 pt. per acre and do not exceed 2 pts. per acre per season. REI: 48-hour. PHI: 180- day. IRAC 01B. Entrust SC (2) (spinosad) | Use 2SC formulations at 4-6 fl. oz. per acre and do not exceed 18 fl. oz. per acre per season. Use 80WP formulations at 1.25-2.0 oz. per acre and do not exceed 5.6 oz. per acre per season. REI: 4-hour. PHI: 60-day. IRAC 05. OMRI-listed. Lannate LV (2.4L) (methomyl) | 1.5 - 3.0 pts. per acre. Do not exceed 15 pts. per acre per season. REI: 48-hour. PHI: 1- day. IRAC 01A. RUP. Perm-Up 25DF (permethrin) | Use 25W, 25WP or 25DF formulations at 3.2-6.4 oz. per acre and do not exceed 25.6 oz. per acre per season. Use 3.2EC formulations at 2-4 fl. oz. per acre and do not exceed 16 fl. oz. per acre per season. Allow 7 days between applications. REI: 12-hour. PHI: 1- day. IRAC 03A. RUP. Radiant 1SC (spinetoram) | 4-8 fl. oz. per acre. Postharvest protection of ferns only. Do not exceed 24 fl. oz. per acre per season. REI: 4-hour. PHI: 60-day. IRAC 05. Sevin XLR Plus (4SC) (carbaryl) | 1-2 qts. per acre. Use low rate for control on seedlings and or spears during harvest, to prevent egg laying and feeding injury. Use high rate for control on fern growth after harvest is over. Do not exceed more than 5 applications to spears and ferns combined. Do not exceed 5 qts. per acre per year. Do not treat more than once every 3 days. REI: 12-hour. PHI: 1-day. IRAC 01A. Caterpillars For cutworm caterpillars: Treat when 5% of crowns are infested at harvest. Treat in the fall when there is 1 larvae per 20 plants. Pesticide Coragen (1.67SC) (chlorantraniliprole) | 3.5-5.5 fl. oz. per acre. For armyworms. Do not exceed 4 applications per season. Do not exceed 15.4 fl. oz. per season. Minimum interval between treatments is 3 days. REI: 4-hour. PHI: 1- day. IRAC 28. Lannate LV (2.4L) (methomyl) | 1.5 - 3.0 pts. per acre. For armyworms, and cutworms. Do not exceed 15 pts. per acre per season. REI: 48-hour. PHI: 1-day. IRAC 01A. RUP. Perm-Up 25DF (permethrin) | For cutworms. Use 25W, 25WP or 25DF formulations at 3.2-6.4 oz. per acre and do not exceed 25.6 oz. per acre per season. Use 3.2EC formulations at 2-4 fl. oz. per acre and do not exceed 16 fl. oz. per acre per season. Allow 7 days between applications. REI: 12-hour. PHI: 1-day. IRAC 03A. RUP. Sevin 5B (carbaryl) | 20 lbs. per acre. For cutworm control on spears during harvest, to prevent egg laying and feeding injury. Do not exceed more than 3 applications to spears. Do not exceed 2 applications to ferns. Do not exceed 60 lbs. per acre per season on spears, and 80 lbs. per acre per season on ferns (100 lbs per acre per season total). Minimum days between treatment is 3 days. REI: 12-hour. PHI: 1-day. IRAC 01A. Sevin XLR Plus (4SC) (carbaryl) | For cutworms. Use low rate for control on seedlings and or spears during harvest, to prevent egg laying and feeding injury. Use high rate for control on fern growth after harvest is over. Do not exceed more than 5 applications to spears and ferns combined. Do not exceed 5 qts. per acre per year. Do not treat more than once every 3 days. REI: 12-hour. PHI: 1-day. IRAC 01A. Japanese Beetle Pesticide Assail 30SG (acetamiprid) | Use 30SG formulations at 5.3 oz. per acre and do not exceed 10.7 oz. per acre per season. Use 70WP formulations at 2.3 oz. per acre and do not exceed 4.6 oz. per acre per season. Apply to fern only after harvest has been completed. Allow 10 days between applications REI: 12-hour. PHI: 1-day. IRAC 04A. Perm-Up 25DF (permethrin) | Use 25W, 25WP or 25DF formulations at 3.2-6.4 oz. per acre and do not exceed 25.6 oz. per acre per season. Use 3.2EC formulations at 2-4 fl. oz. per acre and do not exceed 16 fl. oz. per acre per season. Allow 7 days between applications. REI: 12-hour. PHI: 1- day. IRAC 03A. RUP.

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