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Leaf Spot in Shallot

How to identify and treat leaf spot in Shallot.

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Shallot care requirements

water
Water moderately, 1 inch per week during growth; reduce watering once tops begin to yellow and bulbs approach maturity
soil
Well-draining loam with pH 6.0–7.0; avoid waterlogged soil which causes rot; add compost before planting
light
Full sun, 6–8 hours daily; essential for proper bulb development and storage quality
symptoms

Symptoms to look for in Shallot

  • fiber_manual_recordCircular brown or black spots
  • fiber_manual_recordYellow halos around spots
  • fiber_manual_recordPremature defoliation
help

Common causes in Shallot

Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.

healing

How to treat leaf spot in Shallot

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Shallot

Water at soil level. Improve air circulation. Practise crop rotation.

Leaf Spot in Shallot — Symptoms & Treatment | GreenScout