coronavirus
Leaf Spot in Sweet Potato
How to identify and treat leaf spot in Sweet Potato.
potted_plant
Sweet Potato care requirements
water
Moderate; water 1 inch per week; avoid overwatering which promotes vine growth over tubers
soil
Well-draining, slightly acidic soil with pH 5.8–6.2; avoid excessive nitrogen which reduces tuber size
light
Full sun (6–8 hours daily); longer daylight hours promote larger tuber development
symptoms
Symptoms to look for in Sweet Potato
- fiber_manual_recordCircular brown or black spots
- fiber_manual_recordYellow halos around spots
- fiber_manual_recordPremature defoliation
help
Common causes in Sweet Potato
Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.
healing
How to treat leaf spot in Sweet Potato
Remove affected leaves. Apply appropriate fungicide or bactericide.
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Preventing leaf spot in Sweet Potato
Water at soil level. Improve air circulation. Practise crop rotation.