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Cucumber Downy Mildew Reported for the First Time in 2024 in Ohio
Downy mildew on cucumber in Medina County, OH, July 2, 2024. Photo by Frank Becker. Downy mildew was found today in cucumbers in Medina County, OH. Dr. Mary Hausbeck also reports today the first siting...
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Cucumber Downy Mildew Reported Today in Wayne County, OH
Early symptoms of downy mildew on a cucumber leaf. Image by Francesca Rotondo. Downy mildew was found on cucumbers in central Wayne County, OH today. This is a bit early for downy mildew in this state,...
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Cucumber Downy Mildew in Wooster Sentinel Plot and Fremont Research Plots
Dr. Francesca Rotondo, director of the OSU Plant Diagnostic Clinic, confirmed downy mildew on cucumber in the Wooster (Wayne County) Downy mildew on cucumbers in the OSU Sentinel plots at NCARS,...
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Downy mildew monitoring As of July 17, 2026, cucurbit downy mildew sporangia have been detected in six monitored counties in Michigan, including Allegan, Berrien, Muskegon, Bay, Monroe, and Saginaw...
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OSU sentinel plots and spore traps update July 28, 2026
Figure 1. Spore trap results for Michigan (Based on MSU spore traps) and Ohio (Based on OSU sentinel plots and spore traps) As of July 28, 2026, cucurbit downy mildew sporangia have been detected only...
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Cucurbit Downy Mildew Update (July 31, 2026)
As of July 31, 2026, cucurbit downy mildew activity remains limited in the Midwest. The latest Cucurbit Downy Mildew Forecasting Center (CDM ipmPIPE) epidemic status map indicates that confirmed...
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Cucurbit Downy Mildew Update (August 11, 2026)
Cucurbit downy mildew has now been confirmed in Ohio. According to the Cucurbit Downy Mildew Forecasting Center (CDM ipmPIPE https://cdm.ipmpipe.org/), a new outbreak was reported in Fulton County,...
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Cucurbit Downy Mildew Update (August 11, 2026)
Cucurbit downy mildew has now been confirmed in Ohio. According to the Cucurbit Downy Mildew Forecasting Center (CDM ipmPIPE https://cdm.ipmpipe.org/), a new outbreak was reported in Fulton County,...
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Vegetable Crops Field Night: See the Latest Research in Action!
Join The Ohio State University Extension for an evening in the field and discover the latest advances in vegetable crop production, pest management, and applied research. Whether you are a commercial...
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Cucurbit Downy Mildew Update for Ohio (August 27, 2026)
https://cdm.ipmpipe.org/ The current epidemic status map indicates that cucurbit downy mildew (Pseudoperonospora cubensis) remains active in northern Ohio, with confirmed reports concentrated across...
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