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Brown Spots in Crab Apple

verifiedReviewed by the GreenScout Team

A small deciduous tree producing fragrant pink or white blossoms in spring followed by small, tart apples in autumn

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Crab Apple care requirements

These care conditions are most relevant to brown spots in Crab Apple. Check each one as a potential cause.

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Light
Full sun; requires at least 6 hours of direct sunlight for optimal flowering and fruiting.
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Water
Moderate watering during growing season; water deeply but infrequently; drought-tolerant once established.
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Humidity
Prefers moderate humidity; adapts to various conditions.
symptoms

Symptoms to look for in Crab Apple

  • fiber_manual_recordBrown patches on leaves
  • fiber_manual_recordCrispy brown areas
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Common causes in Crab Apple

  • fiber_manual_recordFungal leaf spot
  • fiber_manual_recordSunburn
  • fiber_manual_recordBacterial blight
  • fiber_manual_recordCold damage
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How to diagnose brown spots in Crab Apple

Sunburn: bleached patches facing light source. Fungal: brown spots with rings. Bacterial: water-soaked spots turning brown.

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How to treat brown spots in Crab Apple

Remove affected leaves. Treat with appropriate fungicide or bactericide. Adjust light exposure.

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Preventing brown spots in Crab Apple

Avoid direct midday sun. Improve air circulation. Water at soil level.

Other Crab Apple problems

Brown Spots in Crab Apple — Causes & Treatment | GreenScout