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Botrytis Blight in Blackberry
How to identify and treat botrytis blight in Blackberry.
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Blackberry care requirements
water
Regularly when establishing and during fruiting.
soil
Well-draining, fertile soil. pH 5.5–7.0.
light
Full sun to partial shade.
symptoms
Symptoms to look for in Blackberry
- fiber_manual_recordFuzzy grey-brown mould on flowers, leaves, or stems
- fiber_manual_recordWater-soaked spots that turn brown and mushy
- fiber_manual_recordBlighted flower buds that fail to open
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Common causes in Blackberry
Caused by the fungus Botrytis cinerea (grey mould), which thrives in cool, humid conditions with poor air circulation, often spreading rapidly on damaged or ageing plant tissue.
healing
How to treat botrytis blight in Blackberry
Remove and destroy all affected plant material immediately, improve airflow around the plant, and apply a fungicide labelled for Botrytis if the infection is spreading.
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Preventing botrytis blight in Blackberry
Avoid overhead watering and overcrowding, water at soil level, deadhead spent flowers promptly, and ensure good ventilation, especially in humid weather.