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2022 Midwest Vegetable Guide

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Legumes – Diseases 200 Midwest Veg Guide 2022 Vertisan (1.67EC) (penthiopyrad) Beans (Dry), Southern Peas/Cowpeas | 14-20 fl. oz. per acre. REI: 12-hour. PHI: 21- day. FRAC 07. Viruses of Multiple Crops - Multiple Pathogens Bean Yellow Mosaic Virus (BYMV) overwinters in wild legumes, like sweet clover, and is spread by aphids. Non-Pesticide Beans (Dry), Beans (Fresh), Lima Beans | For BYMV: Keep new plantings as far as possible with the previous production area. Eliminating overwintering host plants such as wild sweet clover may reduce infection. Monitor for aphids and avoid broad-spectrum insecticides that might kill natural enemies and flare aphid populations. Some tolerant varieties are available. Prompt destruction of the finished crop with tillage to rapidly breakdown tissue is an important method to prevent disease build-up and transfer back to overwintering wild legumes. Pesticide Insecticides Beans (Dry), Beans (Fresh), Lima Beans | For BYMV: use aphid-specific insecticides to lower the population without also reducing the population of natural enemies. See insect section. White Mold (Timber Rot, Drop, Stem Rot) of Multiple Crops - Sclerotinia Fungus This soil pathogen is long-lived in the soil, and has a wide host range on broadleaved crops and weeds, including beans, vine crops, lettuce, tomatoes, peppers, and cole crops. It goes by other names in other crops, such as Drop, White Mold, Stem Rot, and Timber Rot. It is more commonly where humidity and temperatures are high. The fungus often infects flowers, which then drop off and infect the stems that they land on. The stems take on a woody appearance and can split open. Inspection of the stems will reveal small black pellets that are the overwintering body of the pathogen. Non-Pesticide Beans (Dry), Beans (Fresh), Southern Peas/Cowpeas | Avoid fields with a history of the problem. Rotate to a non-broadleaf crop, such as grass grains or sweet corn for >6 years. Prompt destruction of the finished crop with tillage to rapidly breakdown tissue is an important method to prevent disease build-up. Pesticide Aproach (2.08SC) (picoxystrobin) Beans (Dry), Beans (Fresh), Lima Beans, Peas (Dry), Peas (Fresh), Southern Peas/Cowpeas | 8-12 fl. oz. per acre. REI: 12-hour. PHI: 14- day. FRAC 11. Cannonball WG (50) (fludioxonil) Beans (Dry), Beans (Fresh), Southern Peas/Cowpeas | 7 oz. per acre. Do not exceed 28 oz. per year. REI: 12-hour. PHI: 7-day. FRAC 12. Contans WG (5) (Coniothyrium minitans strain CON/M/91-08) Beans (Fresh) | 1-6 lbs. per acre. Apply immediately after harvest or 3-4 months before planting. REI: 4-hour. PHI: 7-day. FRAC NC. OMRI-listed. Endura (WG) (boscalid) Beans (Dry), Beans (Fresh), Lima Beans, Peas (Dry), Peas (Fresh), Southern Peas/Cowpeas | 8- 11 oz. per acre. REI: 12-hour. PHI: 7-day for fresh legumes, 21-day for dry legumes. FRAC 07. Fontelis (1.67SC) (penthiopyrad) Beans (Dry), Beans (Fresh), Lima Beans, Peas (Dry), Peas (Fresh), Southern Peas/Cowpeas | 16-30 fl. oz. per acre. Rates above 20 fl. oz. per acre for fresh legumes only. REI: 12-hour. PHI: 0-day for fresh legumes, 21-day for dry legumes. FRAC 07. iprodione products (iprodione) Beans (Dry), Beans (Fresh), Lima Beans | 1.5-2 pts. per acre. Formulations of iprodione include Nevado and Rovral. Make up to two applications starting at first flower, and ending no later than peak bloom. REI: 24-hour. FRAC 02. Omega 500F (4.17) (fluazinam) Beans (Dry), Beans (Fresh), Lima Beans, Peas (Dry), Peas (Fresh), Southern Peas/Cowpeas | 8-13.6 fl. oz. per acre. Do not exceed 27.2 fl. oz. per crop cycle. REI: 12-hour. PHI: 14-day for fresh legumes, 30-day for dry legumes. FRAC 29. Proline 480SC (4) (prothioconazole) Beans (Dry), Southern Peas/Cowpeas | 5.7 fl. oz. per acre. REI: 12-hour. PHI: 7-day. FRAC 03. Switch 62.5WG (cyprodinil, fludioxonil) Beans (Dry), Beans (Fresh), Lima Beans, Peas (Dry), Peas (Fresh), Southern Peas/Cowpeas | 11-14 fl. oz. per acre. REI: 12-hour. PHI: 7-day. FRAC 09, FRAC 12. Topsin 4.5FL (thiophanate-methyl) Beans (Dry), Beans (Fresh), Lima Beans, Peas (Dry), Peas (Fresh), Southern Peas/Cowpeas | Rates depend on formulation and product. Use 4FL formulation or Cercobin at 20-40 fl. oz. per acre, or 70WSB formulation at 1-2 lb. per acre. REI: 24-hour to 3- day. PHI: 14-day for fresh legumes, 28-day for dry legumes. FRAC 01. Vertisan (1.67EC) (penthiopyrad) Beans (Dry), Southern Peas/Cowpeas | 16-20 fl. oz. per acre. REI: 12-hour. PHI: 21- day. FRAC 07.

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