Great American Media Services

2022 Midwest Vegetable Guide

Issue link: http://read.uberflip.com/i/1431041

Contents of this Issue

Navigation

Page 269 of 291

Sweet Corn – Diseases 270 Midwest Veg Guide 2022 from fertilizer (including starter) and other credits should be 100 to 120 pounds per acre. Harvesting Sweet corn is harvested when the kernels plump up and flavor is good. Normally 18 to 21 days after 50% of the plants have silked sweet corn will be ready to harvest. Sugary and sugar-enhanced varieties should be harvested promptly when they are ready to reduce starchy buildup in the kernels. Synergistic, supersweet and augmented supersweet varieties can be harvested over a slightly longer period. Hand picking is common, but there are single-row and multi-row mechanical harvester options. Sweet Corn – Diseases Reviewed by Dan Egel – Sept 2021 Recommended Controls Anthracnose of Corn - Colletotrichum Fungus Non-Pesticide Rotate to non-host crops for 1-3 years. Varieties with resistance are available. 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) | 3-12 fl. oz. per acre. Use 3-6 fl. oz rate for single application for early disease control between V4 and V7. Use the 6-12 fl. oz. rate for repeated applications for continued season long control between VT and R3. REI: 12-hour. PHI: 7-day. FRAC 11. azoxystrobin products (azoxystrobin) | Use 2 lb. a.i. per gallon formulations (Quadris) at 6.0-15.5 fl. oz. per acre. Use 3.3 lb. per gallon formulations (Azteroid) at 3.9-9.7 fl. oz. per acre. REI: 4-hour. PHI: 7-day. FRAC 11. Elatus (WG) (azoxystrobin, benzovindiflupyr) | 5-7.3 oz. per acre. REI: 12-hour. PHI: 7-day. FRAC 11, FRAC 07. Headline (SC) (2.08) (pyraclostrobin) | 6-12 fl. oz. per acre. REI: 12-hour. PHI: 7-day. FRAC 11. Headline AMP (pyraclostrobin, metconazole) | 10-14.4 fl. oz. per acre. REI: 12-hour. PHI: 20-day. FRAC 11, FRAC 03. Priaxor (fluxapyroxad, pyraclostrobin) | 4-8 fl. oz. per acre. REI: 12-hour. PHI: 7-day. FRAC 07, FRAC 11. Quilt (SE) (azoxystrobin, propiconazole) | 10.5-14.0 fl. oz. per acre. REI: 12-hour. PHI: 14-day. FRAC 11, FRAC 03. Stratego (propiconazole, trifloxystrobin) | 10 fl. oz. per acre. REI: 12-hour. PHI: 14-day. FRAC 03, FRAC 11. Goss' Wilt of Corn - Clavibacter Bacteria This pathogen primarily infects leaves that have been wounded by wind, sandblasting, hail, and insect feeding. It overwinters on plant residue on the soil surface. Non-Pesticide Rotate to non-host crops for at least 1 year. Use disease-free seed and resistant varieties. Control grassy weeds that are also hosts to the pathogen. Prompt destruction of the finished crop with tillage to rapidly breakdown tissue is an important method to prevent disease build-up. Northern Corn Leaf Blight of Corn - Exserohilum or Helminthosporium Fungus Non-Pesticide Rotate to non-host crops for at least 1 year. Varieties with resistance are available. 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) | 3-12 fl. oz. per acre. Use 3-6 fl. oz rate for single application for early disease control between V4 and V7. Use the 6-12 fl. oz. rate for repeated applications for continued season long control between VT and R3. REI: 12-hour. PHI: 7-day. FRAC 11. azoxystrobin products (azoxystrobin) | Use 2 lb. a.i. per gallon formulations (Quadris) at 6.0-15.5 fl. oz. per acre. Use 3.3 lb. per gallon formulations (Azteroid) at 3.9-9.7 fl. oz. per acre. REI: 4-hour. PHI: 7-day. FRAC 11. chlorothalonil products (chlorothalonil) | Several formulations of chlorothalonil (Bravo, Echo, Equus) are labeled at various rates. See label for directions. REI: 12- hour. PHI: 14-day. FRAC M05. Elatus (WG) (azoxystrobin, benzovindiflupyr) | 5-7.3 oz. per acre. REI: 12-hour. PHI: 7-day. FRAC 11, FRAC 07.

Articles in this issue

Archives of this issue

view archives of Great American Media Services - 2022 Midwest Vegetable Guide