In this episode of Hydroponics Daily, Dr. Russell Sharp delves into the challenges posed by downy mildew, a common but often misunderstood threat to hydroponic growers. Downy mildew can devastate crops like lettuce, spinach, and legal cannabis, thriving in cool, humid conditions. Dr. Sharp explains how to identify this water mold, which presents as yellow spots on leaves, and provides practical advice on prevention and treatment. From controlling humidity to selecting resistant crop varieties, learn crucial strategies to protect your yield from this parasitic invader.

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