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Downy Mildew in Pumpkin

How to identify and treat downy mildew in Pumpkin.

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Pumpkin care requirements

water
Water deeply 1–2 inches per week; increase to 2–3 inches weekly during fruit development; allow soil to dry slightly between waterings to prevent rot
soil
Rich, well-draining soil with pH 6.0–6.8; amend generously with compost; pumpkins are heavy feeders requiring nutrient-rich medium
light
Full sun; requires minimum 6–8 hours of direct sunlight daily for maximum growth and fruit development
symptoms

Symptoms to look for in Pumpkin

  • fiber_manual_recordYellow patches on upper leaf surface
  • fiber_manual_recordGrey-purple fuzzy growth on undersides
  • fiber_manual_recordWilting
help

Common causes in Pumpkin

Caused by Peronospora and Pseudoperonospora species. Spreads in cool, humid conditions.

healing

How to treat downy mildew in Pumpkin

Remove affected material. Apply copper fungicide or phosphonate.

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Preventing downy mildew in Pumpkin

Avoid overcrowding. Water in morning. Choose resistant varieties.