Publication 360, Fruit Production Recommendations:
Saskatoon Berry Calendar - Green fruit

Table of Contents

1. Green fruit
   • Powdery mildew
   • Saskatoon-juniper rust
   • Entomosporium leaf and berry spot
   • Precautions
2. Other Saskatoon Berry Calendar Sections
   • Early bud break
   • Flower bud break
   • White tip
   • Bloom
   • Petal fall
   • After Harvest
3. Other Information on Saskatoon Berries
   • Table 5-17. Products Used on Saskatoon Berries
   • Notes on Saskatoon Berry Diseases and Insects
4. Saskatoon Berry Calendar PDF 168 kb
5. Pub 360, Chapter 5, Berry Crops - PDF 364 kb
6. Related Links

Powdery mildew (Green fruit)

• Materials: Nova 40 W @ 113 g/ha
• Comments: Apply in 1,000 L water per ha. Spray until plants are dripping. Apply no more than 340 g/ha per season. Repeat application in 10 days if necessary. Maximum three applications per season.

Saskatoon-juniper rust (Green fruit)

• Materials: Apply one of;
  • Topas 250 E @ 500 mL/ha or Mission 418 EC @ 300 mL/ha
  • Pristine WG @ 1.6 kg/ha
• Comments: Infections on juniper spread up to 2 km to saskatoons. Prune out rust galls on juniper or remove entire juniper plants to reduce disease pressure. Spray fungicides before symptoms develop on saskatoons. For resistance management alternate products from different fungicide groups.
• Learn more:
• Notes on Saskatoon Berry Diseases and Insects
  • Saskatoon-juniper rust

   

Entomosporium leaf and berry spot (Green fruit)

• Materials: Apply one of;
  • Topas 250 E @ 500 mL/ha or Mission 418 EC @ 300 mL/ha
  • Kumulus DF @ 7.5 kg/ha
  • Switch 62.5 WG @ 777-975 kg/ha
  • Pristine WG @ 1.6 kg/ha
• Comments: For resistance management alternate products from different fungicide groups.
  Switch: For suppression of entomosporium leaf spot.
• Learn more:
  • Notes on Saskatoon Berry Diseases and Insects
    • Entomosporium leaf and berry spot

  
  

Precautions

Read the product label and follow all safety precautions.
Always consult the product label for suggested water volumes. Otherwise, use enough water to ensure thorough spray coverage.

Products are listed according to insecticide and fungicide family groups. Use products from different groups to help prevent pest resistance. For resistance management refer to Pest Resistance to Insecticides, Fungicides, Miticides.

For preharvest interval, re-entry period, maximum number of applications and chemical group, see Table 5-17. Products Used on Saskatoon Berries.

Related Links

• Notes on Saskatoon Berry Diseases and Insects
• OMAFRA Berry Index Page
• Integrated Pest Management (IPM)
• Pesticide Application and Safety
• Pesticide Companies and Agents
• Search the PMRA website
• Ontario Minor Use Program
• OMAFRA Publication 505: Ontario Weeds
• OMAFRA Publication 75: Guide To Weed Control: Berry Crops