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Downy Mildew Control Recommendations

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Below are links to regional and / or state control recommendations for cucurbit downy mildew.  

 ***Please contact your local extension office or your State Coordinator for more information regarding the control and prevention of cucurbit downy mildew.***

Downy mildew is a very destructive disease and progresses rapidly under favorable conditions. Fungicides are much more effective when applied well before symptoms are visible. Initiating a downy mildew control program after symptoms have been detected is much more likely to fail.

California Cucurbit Downy Mildew Management Guidelines

2018 Clemson Cucurbit Downy Mildew Management

2018 Cornell Cucurbit Downy Mildew Management

2018 Midwest Vegetable Production Guide
2018 Mississippi State University Cucurbit Downy Mildew Management

NCSU Fact sheet and control recommendations

2018 Ontario DM Control Strategy for Cucumber Crops

2018 Southeastern Vegetable Crop Handbook

University of Florida Management of CDM in Florida




Recommendations for the use of agricultural chemicals are included in this website as a convenience to the reader. The use of brand names and any mention or listing of commercial products or services in this publication does not imply endorsement by North Carolina State University nor discrimination against similar products or services not mentioned. Individuals who use agricultural chemicals are responsible for ensuring that the intended use complies with current regulations and conforms to the product label. Be sure to obtain current information about usage regulations and examine a current product label before applying any chemical. For assistance, contact your county Cooperative Extension Service agent.

This service is provided by the North Carolina State University departments of Plant Pathology and Marine, Earth, and Atmospheric Sciences.