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Leaf Spot in Blueberry Highbush
How to identify and treat leaf spot in Blueberry Highbush.
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Blueberry Highbush care requirements
water
Keep soil consistently moist but well-draining; provide 1–2 inches weekly; blueberries are sensitive to drought and flooding
soil
Strongly acidic soil (pH 4.5–5.5) is essential; use peat moss, pine bark, or sulfur to acidify; ensure excellent drainage
light
Full sun (6–8 hours daily); adequate light ensures better fruiting and sweeter berries
symptoms
Symptoms to look for in Blueberry Highbush
- fiber_manual_recordCircular brown or black spots
- fiber_manual_recordYellow halos around spots
- fiber_manual_recordPremature defoliation
help
Common causes in Blueberry Highbush
Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.
healing
How to treat leaf spot in Blueberry Highbush
Remove affected leaves. Apply appropriate fungicide or bactericide.
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Preventing leaf spot in Blueberry Highbush
Water at soil level. Improve air circulation. Practise crop rotation.