Great American Media Services

2022 Midwest Vegetable Guide

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

Contents of this Issue

Navigation

Page 128 of 291

Cucurbit Crops – Diseases Midwest Veg Guide 2022 129 Strains of the gummy stem blight fungus are known to exist in the Midwest that are resistant to some fungicides. Strobilurin fungicides in Group 11 (such as Cabrio, Flint, Merivon, Pristine, Quadris, Satori) and fungicides with the active ingredient boscalid Group 7 (such as Fontelis and Pristine) are particularly prone to resistance development. Tank-mix these products with products that have a different mode of action in situations. At vine touch, apply contact or systemic fungicides at 7-14 day intervals or according to MELCAST - see Purdue Extension publication BP-67-W, Foliar Disease Fungicide Control Using MELCAST, available from the Purdue Extension Education Store, www.edustore.purdue.edu. Non-Pesticide Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | Use pathogen-free seed and disease free transplants. Rotate to non-Cucurbit crops for 3 years. Prompt destruction of the finished crop with tillage to rapidly breakdown tissue is an important method to prevent disease build-up. Pesticide Aprovia Top (difenoconazole, benzovindiflupyr) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 10.5-13.5 fl. oz. per acre. REI: 12-hour. PHI: 0- day. FRAC 03, FRAC 07. chlorothalonil products (chlorothalonil) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | Several formulations of chlorothalonil (Bravo, Echo, Equus) are labeled at various rates. See label for directions. REI: 12-hour. PHI: 0-day. FRAC M05. Inspire Super (EW) (difenoconazole, cyprodinil) Cantaloupe/Muskmelon, Cucumber, Watermelon | 16-20 fl. oz. per acre. REI: 12-hour. PHI: 7-day. FRAC 03, FRAC 09. Luna Experience (fluopyram, tebuconazole) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 10-17 fl. oz. per acre. REI: 12-hour. PHI: 7- day. FRAC 07, FRAC 03. mancozeb products (mancozeb) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | Several formulations of mancozeb products (Dithane, Manzate, Penncozeb) are labeled at various rates. See label for directions. REI: 24-hour. PHI: 5-day. FRAC M03. Merivon (fluxapyroxad, pyraclostrobin) Cantaloupe/Muskmelon, Cucumber, Watermelon | 5.5 fl. oz. per acre. REI: 12-hour. PHI: 0-day. FRAC 07, FRAC 11. Miravis Prime (SC) (pydiflumetofen, fludioxonil) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 9.2-11.4 fl. oz. per acre. An adjuvant may be added at recommended rates. REI: 12-hour. PHI: 1-day. FRAC 07, FRAC 12. Orondis Opti Premix (SC) (oxathiapiprolin, chlorothalonil) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 1.75-2.5 pts. per acre. Make no more than 2 sequential applications before rotating to a different mode of action. When 3 fungicide applications are used, Orondis can be in no more than 33% of the applications. Do not follow soil applications of Orondis Gold. REI: 12-hour. PHI: 0-day. FRAC 49, FRAC M05. Quadris Top (SC) (azoxystrobin, difenoconazole) Cantaloupe/Muskmelon, Cucumber, Watermelon | 12-14 fl. oz. per acre. REI: 12-hour. PHI: 1-day. FRAC 11, FRAC 03. Switch 62.5WG (cyprodinil, fludioxonil) Cantaloupe/Muskmelon | 11-14 oz. per acre. REI: 12-hour. PHI: 1-day. FRAC 09, FRAC 12. tebuconazole products (tebuconazole) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash, Watermelon | 8 fl. oz. per acre. There are many brand names (Monsoon, Onset, Vibe) with 3.6 lbs. a.i. per gallon that use the same rate. REI: 12-hour to 18-day. PHI: 7-day. FRAC 03. Zing! (zoxamide, chlorothalonil) Cantaloupe/Muskmelon | 36 fl. oz. per acre. REI: 12-hour. PHI: 0-day. FRAC 22, FRAC M05. Leaf Blight of Cucurbits - Alternaria Fungus Alternaria leaf blight (ALB) primarily affects cantaloupe. ALB symptoms may occur on leaves from May through harvest. At vine touch, apply contact or systemic fungicides at 7-14 day intervals or according to MELCAST - see Purdue Extension publication BP-67-W, Foliar Disease Fungicide Control Using MELCAST, available from the Purdue Extension Education Store, edustore.purdue.edu . Fungicide application is unnecessary within 2-3 weeks of final harvest. Non-Pesticide Cantaloupe/Muskmelon | Rotate to non-Cucurbit crops for 2 years. Prompt destruction of the finished crop with tillage to rapidly breakdown tissue is an important method to prevent disease build-up. Pesticide Aprovia Top (difenoconazole, benzovindiflupyr) Cantaloupe/Muskmelon, Cucumber, Pumpkin, Squash,

Articles in this issue

Links on this page

Archives of this issue

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