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Leaf Spot in Water Milfoil
How to identify and treat leaf spot in Water Milfoil.
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Water Milfoil care requirements
water
Fully submerged; thrives in cool to temperate water, 60-75°F (15-24°C). Prefers slightly acidic to neutral pH (6.0-7.5). Tolerates moderate water movement.
soil
No soil required; plant in aquatic substrate or anchor with plant weights. Does not require rooting medium.
light
Moderate to bright light; 8-10 hours daily. Grows in partial shade but develops better color and density with full light.
symptoms
Symptoms to look for in Water Milfoil
- fiber_manual_recordCircular brown or black spots
- fiber_manual_recordYellow halos around spots
- fiber_manual_recordPremature defoliation
help
Common causes in Water Milfoil
Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.
healing
How to treat leaf spot in Water Milfoil
Remove affected leaves. Apply appropriate fungicide or bactericide.
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Preventing leaf spot in Water Milfoil
Water at soil level. Improve air circulation. Practise crop rotation.