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coronavirus

Septoria Leaf Spot in Celery

How to identify and treat septoria leaf spot in Celery.

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Celery care requirements

water
Keep soil consistently moist but not waterlogged; water deeply 2–3 times weekly. Mulch to retain moisture.
soil
Rich, well-draining loam with high organic matter and pH 6.0–7.0. Prefers fertile, slightly alkaline soil.
light
Full sun (6–8 hours daily); partial shade in hot climates.
symptoms

Symptoms to look for in Celery

  • fiber_manual_recordSmall, circular spots with dark margins and tan or grey centers
  • fiber_manual_recordTiny black fruiting bodies (pycnidia) visible in the center of older spots
  • fiber_manual_recordYellowing and drop of lower leaves first, progressing upward
help

Common causes in Celery

Caused by Septoria fungal species, spreading via rain splash and overwintering in plant debris, favored by warm, humid weather and prolonged leaf wetness.

healing

How to treat septoria leaf spot in Celery

Remove and destroy infected lower leaves, avoid overhead watering, and apply a fungicide labeled for Septoria if the infection is spreading quickly.

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Preventing septoria leaf spot in Celery

Rotate crops, stake or space plants for airflow, water at the base, and clear plant debris at the end of the season.

Septoria Leaf Spot in Celery — Symptoms & Treatment | GreenScout