Powdery or Downy Mildew? Your Fans May Be Part of the Problem.
Powdery and downy mildew can be a big problem for growers of ornamental, edible or medicinal plants. In each case, these pathogens cause economic damage by rendering the plant or produce unsalable. Each pathogen relies heavily on spores released by the fungus to spread to other plants. How your HAF system works may be a cause of spread and climate conditions that lead to infection.
