Tag: Powdery mildew
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Posted on June 5, 2025
Apple Powdery Mildew in Wisconsin Orchards: What You Should Know
As we move into June, some Wisconsin apple growers are beginning to notice symptoms of powdery mildew showing up in their orchards. If your orchard […]
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Posted on August 29, 2024
Free Fungicide Resistance Testing for Wisconsin Grape Growers
Dear Wisconsin grape growers: Graduate student, Courtney Meeks, is collecting powdery mildew and downy mildew samples for free fungicide resistance testing. If you are observing powdery mildew and/or […]
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Posted on July 2, 2024
UW-Madison/Extension Plant Disease Diagnostic Clinic (PDDC) Update June 28, 2024
The following diseases/disorders were identified at the PDDC from June 22, 2024 through June 28, 2024. PLANT/SAMPLE TYPE DISEASE/DISORDER PATHOGEN COUNTY FRUIT CROPS […]
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Posted on July 13, 2023
Wisconsin Vineyard Update: Powdery Mildew Infections, July 2023
I’m receiving reports of powdery mildew observations in Wisconsin vineyards. While we do not often associate drought conditions with grape diseases, powdery mildew is an […]
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Posted on April 17, 2023
Wisconsin Apple Disease Update – April 18, 2023
Spring certainly seems unresolved in Wisconsin this year. With warmer temperatures felt across much of the central and southern parts of the state, buds on […]
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Posted on July 14, 2022
Managing Apple Powdery Mildew
It’s July in Wisconsin, which means the humidity is up and if you have a history of powdery mildew in your orchard you may be […]
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Posted on June 22, 2021
Grape Scouting Report: Mildews, Rots, and Spots
Symptoms of grape diseases have shown up in the vineyards at the West Madison Agricultural Research Station (WMARS). Due to the recent drought conditions, disease […]
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Posted on May 13, 2021
Grape Disease Management – Early Season
We saw reports of bud burst and 1- to 3-inch shoots this past week in Wisconsin. Critical fungicide application timing is now for several grape […]
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Posted on January 15, 2021
Webinar: Midwest – Building Better Spray Programs for Vineyards
Description Fungicide resistance to powdery and downy mildews is a growing concern for Midwest grape producers. Developing spray programs that focus not only on disease […]
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Posted on November 16, 2020
UW-Madison/Extension Plant Disease Diagnostic Clinic (PDDC) Update November 13, 2020
The PDDC is now once again accepting physical samples for diagnosis, but due to COVID-19, only with limited hours and limited sample processing capacity. Click […]