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2022 Midwest Vegetable Guide

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Fruiting Vegetables – Diseases Midwest Veg Guide 2022 163 Velum Prime (4.16SC) (fluopyram) Eggplant, Pepper, Tomato | 6.5-6.84 fl. oz. per acre. Apply through drip irrigation. Do not exceed 13.7 fl. oz. per acre per season. Allow 7 days between applications. REI: 12-hour. PHI: 0- day. FRAC 07. Southern Blight of Fruiting Vegetables - Sclerotium Fungus This disease is normally observed in southern climates or during seasons with above normal temperatures. Non-Pesticide Eggplant, Pepper, Tomato | Rotate to a non-broadleaf crop, such as grass grains, sweet corn, or onions for >6 years. Prompt destruction of the finished crop with tillage to rapidly breakdown tissue is an important method to prevent disease build-up. Anaerobic soil disinfestation (ASD) is an effective sterilization method for greenhouse and high tunnel soils that contain this pathogen. Pesticide Fontelis (1.67SC) (penthiopyrad) Eggplant, Pepper, Tomato | 16-24 fl. oz per acre for all diseases listed here except anthracnose at 24 fl. oz. Suppression only for anthracnose. In the greenhouse use a rate of 0.75 fl. oz. per gallon per 1,360 sq. ft. REI: 12-hour. PHI: 0-day. FRAC 07. Luna Sensation (fluopyram, trifloxystrobin) Eggplant, Pepper, Tomato | Rates are as follows per acre: early blight, powdery mildew, Septoria leaf spot at 5-7.6 fl. oz.; anthracnose, gray mold, white mold and southern blight at 7.6 fl. oz. Suppression only for anthracnose and white mold. REI: 12-hour. PHI: 3-day. FRAC 07, FRAC 11. Viruses of Multiple Crops - Multiple Pathogens There are three main virus diseases in tomatoes: Impatiens Necrotic Spot Virus (INSV), Tomato Spotted Wilt Virus (TSWV), and Tobacco Mosaic Virus (TMV). INSV and TSWV is carried by thrips and can cause major loss to tomatoes if they infect young plants. It is more common in greenhouse and high tunnel situations, especially where tomatoes and ornamental flowers share space. TMV is more of a problem in fresh market tomatoes than processing tomatoes due to extensive handling. Disease can spread through smoking tobacco and tobacco residue. Non-Pesticide Tomato | For INSV and TSWV: maintain transplant greenhouse sanitation and good weed control is important. Avoid shared space with hanging basket flowers, and Solanaceous weeds like nightshades and horse nettle. Use a monitoring program to time the release of natural enemies of thrips (see insect section). Remove infected transplants and do not plant them out into fields. For TMV: establish and enforce break area and handwashing rules and procedures to avoid tobacco residue on tomato plants. Remove infected transplants and do not plant them out into fields. 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 found in greenhouses and high tunnels where humidity is 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, revealing small black pellets that are the overwintering body of the pathogen. Non-Pesticide Eggplant, Pepper, Tomato | 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. Anaerobic soil disinfestation (ASD) is an effective biological treatment for greenhouse and high tunnel soils that contain this pathogen. Pesticide Cabrio EG (20) (pyraclostrobin) Eggplant, Pepper, Tomato | 12-16 oz. per acre. Suppression only for Botrytis gray mold and white mold. REI: 12-hour. PHI: 0-day. FRAC 11. Contans WG (5) (Coniothyrium minitans strain CON/M/91-08) Eggplant, Pepper | 1-4 lbs per acre. 1-4 lbs. per acre in the field; 0.75-1.5 oz. per 1,000 sq. ft. for greenhouse/high tunnel applications. REI: 4-hour. PHI: 0- day. FRAC NC. OMRI-listed. Endura (WG) (boscalid) Tomato | Rates as follows per acre: early blight rates are 2.5-3.5 oz.; Gray mold rates are 9-12.5

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