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Downy Mildew in Broccoli

How to identify and treat downy mildew in Broccoli.

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Broccoli care requirements

water
Consistently moist — 2.5–5cm per week.
soil
Fertile, slightly alkaline, well-draining soil.
light
Full sun.
symptoms

Symptoms to look for in Broccoli

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

Common causes in Broccoli

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

healing

How to treat downy mildew in Broccoli

Remove affected material. Apply copper fungicide or phosphonate.

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Preventing downy mildew in Broccoli

Avoid overcrowding. Water in morning. Choose resistant varieties.

Downy Mildew in Broccoli — Symptoms & Treatment | GreenScout