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Rust in Rudbeckia

How to identify and treat rust in Rudbeckia.

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Rudbeckia care requirements

water
Regular when establishing. Tolerates dry periods.
soil
Average to fertile, well-draining soil.
light
Full sun to partial shade.
symptoms

Symptoms to look for in Rudbeckia

  • fiber_manual_recordOrange or brown pustules on leaf undersides
  • fiber_manual_recordYellow spots on leaf tops
  • fiber_manual_recordPremature leaf drop
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Common causes in Rudbeckia

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

healing

How to treat rust in Rudbeckia

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

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Preventing rust in Rudbeckia

Avoid overhead watering. Space plants adequately. Clear debris.