ZonePlant

Disease on crop

fungal

Berry Powdery Mildew on june-bearing strawberry

Podosphaera and Sphaerotheca species

Surface-feeding fungal disease producing white powdery growth on leaves and fruit, particularly damaging on gooseberries.

Disease
Berry Powdery Mildew
Pathogen type
Fungal
Crop
June-Bearing Strawberry
Scientific name
Podosphaera and Sphaerotheca species

Berry Powdery Mildew on june-bearing strawberry

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Symptoms on june-bearing strawberry

  • White powdery coating on leaves, shoots, and fruit
  • Distorted new growth
  • Brown-felted mature growth on gooseberry fruit (American mildew)

IPM controls

  • Plant resistant varieties (especially for gooseberry)
  • Sulfur or potassium bicarbonate sprays at first sign
  • Open pruning for airflow
  • Avoid excessive nitrogen
  • Milk spray (1:10 dilution) for organic control

Resistant varieties

Hinnonmaki Red Invicta Captivator

Other crops affected by berry powdery mildew

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