Notes on Saskatoon Berry Diseases
Entomosporium leaf and berry spot

Identification

This is the most serious disease of saskatoons. Small angular brown spots first develop on lower leaves and eventually cause leaves to yellow. Lesions may also develop on the petioles and cause leaf drop. Infected fruit has small, grey lesions and becomes disfigured and cracked.

Symptoms of Entomosporium leaf and berry spot

Period of activity

The fungus overwinters on fallen leaves and twigs. New infections are favoured by rain in the spring and early summer.

Management Notes

• Adjust plant density and pruning practices to provide adequate airflow through the row.
  
• Control weeds in the row and use trickle irrigation rather than overhead sprinklers.
  
• Several fungicides are labelled for control of this disease. See Saskatoon Berry Calendar.
  
  

Learn more...

• Notes on Saskatoon Berry Diseases and Insects
• OMAFRA Publication 360 Saskatoon Berry Calendar
• Saskatoon Woes - Hort Matters newsletter, September 2003
• OMAFRA Publication 360 Fruit Production Recommendations
• OMAFRA Berry Crops Index page
  

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