Downy mildew confirmed on cucumbers in Ohio and Michigan

Downy mildew confirmed on cucumbers in Ohio and Michigan

On 7/11, it was reported that early infection of downy mildew found in Michigan. Other states that have reported downy mildew outbreaks include Maryland, Alabama, North Carolina, Georgia, Texas and Florida.

Muskmelon, cantaloupe and watermelon are also highly susceptible to the downy mildew pathogen and should be protected with fungicides at this time, especially if irrigated overhead. Last year in Michigan, outbreaks of downy mildew also occurred on hard squash, but the symptoms appeared differently than the angular lesions that commonly occur on the cucumbers and melons.

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