Publication 360, Fruit Production Recommendations:
Blueberry Calendar - Green tip

Table of Contents

1. Introduction
2. Green tip
   • Phomopsis stem canker, Anthracnose fruit rot
3. Other Blueberry Calendar Sections
• Dormant (late winter)
• Early Spring, prior to bud break
• Bud swell to pink bud
• Green tip
• Pink bud
• First bloom
• Petal fall
• Fruit ripening
4. Other Information on Blueberries
   • Blueberry Growth Stages
   • Blueberry Nutrition
   • Notes on Blueberry Insects and Diseases
   • Table 5-9. Products Used on Blueberries
   • Table 5-10. Activity of Fungicides on Blueberry Diseases
5. Blueberry Calendar PDF 68 KB
6. Chapter 5 - Berry Crops Calendar PDF 311 KB
7. Related Links

Introduction

Consult the product label for suggested water volumes. For mature highbush blueberries, use 700–1,000 L of water per ha unless otherwise noted on the label.

Products are listed according to insecticide and fungicide family groups. Use products from different family groups to prevent pest resistance.

Check Table 5-9. Products Used on Blueberries

Green tip

Diseases and Insects

• Phomopsis stem canker
• Anthracnose fruit rot

Materials and Amount/ha

• Cabrio EG @ 1.00 kg
• Pristine WG @ 1.30 kg*
• Pristine WG @ 1.60 kg*
  
• Bravo 500 @ 7.20 L

Comments

Apply fungicides at this time to prevent twig blights and reduce overwintering inoculum.

*Pristine: Use 1.3 kg/ha for anthracnose fruit rot and 1.6 kg/ha for phomopsis stem canker.

Pristine and Cabrio: Both include active ingredients in the same fungicide family. Maximum two consecutive applications, then alternate with fungicides from different families.

Bravo: Will also control alternaria fruit rot.

Learn more

• Notes on Blueberry Diseases and Insects
  • Anthracnose fruit rot
  • Phomopsis stem canker

Related Links

• OMAFRA Berry Crops Index Page
• Notes on Blueberry Diseases and Insects
• 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
• OMAFRA Publication 360: Fruit Production Recommendations