Tag: fungicide resistance

• 2026 Powdery Mildew Fungicide Bioassay Results

  

  Anthony Keinath, Extension Pathologist In June 2026, Interns Will Dalton and  Adam Padgett conducted two bioassay experiments to test several fungicides recommended against powdery mildew. In the first test, Early Prolific summer squash was treated with Torino, Gatten, Vivando, Quintec, and Procure at the low-label rate on the top of leaves. Possible fungicide resistance prompted…

  Justin Ballew

  August 21, 2026

  Cucurbits, Disease

  Cucurbits, Disease, disease management, fungicide recommendations, fungicide resistance, fungicides, powdery mildew

• Fungicide Sensitivity of Cucurbit Powdery Mildew in Charleston, SC

  

  From Clemson Plant Pathologist Tony Keinath A fungicide sensitivity bioassay was done between June 1 and June 10, 2023, to find out which fungicides can be used against the current outbreak of powdery mildew on squash, watermelon, and other cucurbits. Methods: Yellow summer squash plants ‘Early Prolific’ with three true leaves were treated with one…

  Justin Ballew

  June 20, 2023

  Cucurbits, Disease

  bioassay, Cucurbits, Disease, fungicide, fungicide resistance, powdery mildew

• 2023 Gummy Stem Blight Control for Watermelon Growers: Early is on Time

  

  From Tony Keinath, Extension Vegetable Pathologist. The recent freeze in the lower part of South Carolina more than ended the 2022 watermelon season. It’s not too early to plan for gummy stem blight control in 2023 to allow time to buy the right fungicides in case of shortages. As the saying goes, early is on…

  Justin Ballew

  November 22, 2022

  Disease, Watermelon

  disease management, fungicide resistance, fungicides, gummy stem blight, Watermelon