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Rust in Lupin

How to identify and treat rust in Lupin.

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Lupin care requirements

water
Water regularly to keep soil consistently moist; good drainage is critical. Drought-sensitive; mulch to retain moisture.
soil
Prefers slightly acidic to neutral soil (pH 6.0–7.0). Must have excellent drainage; tolerates poor soil.
light
Full sun to partial shade (minimum 5–6 hours sun daily) for robust growth.
symptoms

Symptoms to look for in Lupin

  • fiber_manual_recordOrange or brown pustules on leaf undersides
  • fiber_manual_recordYellow spots on leaf tops
  • fiber_manual_recordPremature leaf drop
help

Common causes in Lupin

Caused by various Puccinia and Phragmidium species. Spreads via windborne spores in moist conditions.

healing

How to treat rust in Lupin

Remove and destroy infected leaves. Apply copper or sulphur fungicide.

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Preventing rust in Lupin

Avoid overhead watering. Space plants adequately. Clear debris.