Notes on Saskatoon Berry Diseases
Saskatoon-juniper rust

Identification

Early symptoms include yellowish spots and swellings on leaves and fruit. Older infections develop spiky outgrowths. On juniper, the fungus appears as woody round galls. Jelly like horns grow out of these galls in the spring.

Saskatoon-juniper rust gall

Period of activity

In spring, after a rain, juniper galls produce spores that can spread to saskatoons up to 2 km away. The disease is favoured by cool wet spring weather.

Management Notes

• Prune out rust galls or remove entire juniper plants in the immediate vicinity of the orchard to reduce disease pressure.
  
• 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
  

| Top of Page |