Notes on Raspberry Diseases
Orange rust of blackberry

Identification

Infected plants produce weak, spindly shoot growth with yellow misshapen leaves in the spring. Leaves on these shoots develop bright orange pustules on the lower surface. This disease only occurs on blackberries, black raspberries and purple raspberries.

Orange rust on blackberry leaf

Management notes

Unlike most fungus diseases, orange rust is systemic in the plant.

To prevent spread of the disease, dig out and destroy infected plants early in the spring before pustules break open.

Learn more...

• Notes on Raspberry Diseases and Insects
• OMAFRA Publication 360 Raspberry Calendar
• OMAFRA Publication 360 Fruit Production Recommendations
• OMAFRA Berry Crops Index page
  

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