Powdery Mildew on Melons: Identification, Treatment, and Beginner Garden Tips

Diagnosis: Powdery Mildew

White patches, curling leaves on melons = classic powdery mildew. Spores spread via air and rain splash. Rarely fatal but reduces vigor and yield.

Treatment

• Lime sulfur — broad fungicide.
• Copper fungicides (e.g., Gardens Alive Soap Shield).
• Fungicidal soap.
• Apply at first sign; repeat per label.

Beginner Garden Fundamentals (Recap)

• Start small (≤10 veggies + flowers for pollinators).
• Amend soil with compost, manure, peat, leaves; test pH (7.0 target).
• Use square foot / raised beds for less work.
• Water 1"/week; fertilize balanced every 2 weeks.
• Scout pests; use row covers (remove at bloom).
• Organic sprays: pyrethrum, rotenone, BT.
• Harvest young for best quality.

Resources

• Soap Shield
• Ohio State Plant Pathology
• Square Foot Gardening — Mel Bartholomew