Blue Mold of Apple
Penicillium expansum
mediumApplefungal
A fast-spreading postharvest storage rot entering through wounds.
Symptoms
Soft, watery rot with blue-green spore masses, spreading rapidly from wounds to adjacent fruit in storage.
Favorable conditions
- •Wounds and bruising from harvest and handling
- •Warm storage temperatures
Management
- 1Handle fruit carefully at harvest to avoid wounds and bruising
- 2Apply postharvest fungicide drenches where appropriate
- 3Cool fruit promptly and sanitize storage areas
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