coronavirus

Downy Mildew in Spaghetti Squash

How to identify and treat downy mildew in Spaghetti Squash.

potted_plant

Spaghetti Squash care requirements

water
Water deeply and consistently, providing 1–2 inches per week; reduce watering as fruits mature. Avoid wetting foliage to prevent disease.
soil
Well-draining, fertile soil rich in organic matter; pH 6.0–7.5. Amend with compost before planting.
light
Full sun (6–8 hours daily minimum); requires intense light for fruit development and sweetness.
symptoms

Symptoms to look for in Spaghetti Squash

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

Common causes in Spaghetti Squash

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

healing

How to treat downy mildew in Spaghetti Squash

Remove affected material. Apply copper fungicide or phosphonate.

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Preventing downy mildew in Spaghetti Squash

Avoid overcrowding. Water in morning. Choose resistant varieties.