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Leaf Spot in Iris Pseudacorus
How to identify and treat leaf spot in Iris Pseudacorus.
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Iris Pseudacorus care requirements
water
Constantly wet to waterlogged soil required; grows in shallow water (up to 12 inches deep) or boggy margins. Highly water-tolerant and adaptable
soil
Tolerates a wide range of soils; humus-rich, fertile soil with high moisture retention preferred. Can grow in poor soil and clay
light
Full sun to partial shade; 5+ hours of direct sunlight for optimal flowering
symptoms
Symptoms to look for in Iris Pseudacorus
- fiber_manual_recordCircular brown or black spots
- fiber_manual_recordYellow halos around spots
- fiber_manual_recordPremature defoliation
help
Common causes in Iris Pseudacorus
Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.
healing
How to treat leaf spot in Iris Pseudacorus
Remove affected leaves. Apply appropriate fungicide or bactericide.
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Preventing leaf spot in Iris Pseudacorus
Water at soil level. Improve air circulation. Practise crop rotation.