Plenty of heat and rain in southeast Michigan has set the stage for various crop diseases. MSU Extension is reminding growers that this type of weather highlights the importance of preventative fungicide applications, even as it makes maintaining spray schedules difficult.
MSU Extension also points out that while cucumber harvest is already underway and reports indicate a good crop, a confirmation of mature downy mildew in Monroe Country suggests now is not the time to neglect your fungicide program or lessen your vigilance for the disease.
Syngenta recommends preventive applications of Orondis® Opti fungicide for excellent control of downy mildew and as a resistance management tool.
Cucumber leaf showing symptoms of downy mildew.
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