 With fungicides, we already talked about getting great spray coverage with the right product at the right timing. While those factors are super important, here are a few more. Spray in the morning and or when the weather is cool, like 75 degrees or so. Have water pH less than 6.5. Spray when the wind is relatively calm, so more fungicide hits the plant rather than going up in the air. Use a product like fulvic acid or Nutex EDA to help better deliver the fungicide into the plant.