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Rust in Phlox Paniculata

How to identify and treat rust in Phlox Paniculata.

potted_plant

Phlox Paniculata care requirements

water
Keep soil consistently moist but not waterlogged; water deeply 1–2 times per week depending on rainfall
soil
Well-draining, fertile soil with organic matter; pH 6.0–7.0
light
Full sun to partial shade; 6+ hours of direct sunlight daily for best flowering
symptoms

Symptoms to look for in Phlox Paniculata

  • 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 Phlox Paniculata

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

healing

How to treat rust in Phlox Paniculata

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

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Preventing rust in Phlox Paniculata

Avoid overhead watering. Space plants adequately. Clear debris.

Rust in Phlox Paniculata — Symptoms & Treatment | GreenScout