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Rust in Yellow Flag
How to identify and treat rust in Yellow Flag.
potted_plant
Yellow Flag care requirements
water
Shallow water (2–6 inches/5–15 cm depth) or wet bog soil; tolerates dry soils but prefers consistent moisture; hardy in standing water
soil
Rich, organic-matter-dense soil or aquatic sediment; tolerates poor, clayey substrates; neutral to slightly acidic pH optimal
light
Full sun to partial shade; requires 5+ hours of direct sunlight; blooms best with abundant light
symptoms
Symptoms to look for in Yellow Flag
- 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 Yellow Flag
Caused by various Puccinia and Phragmidium species. Spreads via windborne spores in moist conditions.
healing
How to treat rust in Yellow Flag
Remove and destroy infected leaves. Apply copper or sulphur fungicide.
shield
Preventing rust in Yellow Flag
Avoid overhead watering. Space plants adequately. Clear debris.