Publication 360, Fruit Production Recommendations: Apple Calendar - Preharvest Sprays

Table of Contents

1. Botrytis Grey Mould, Penicillium, Storage Diseases (suppression)
2. Precautions
3. Other Apple Calendar sections
   • Dormant
   • Green tip
   • Half-inch green to tight cluster
   • Tight cluster to pink
   • Pink
   • Bloom
   • Late Bloom/Early Petal Fall
   • Petal fall (Calyx) when most petals have fallen
   • First summer spray (7-10 days after Calyx)
   • Subsequent summer sprays
   • Special summer sprays
   • Postharvest treatment
4. Other Information on Apples
   • Apple Growth Stages
   • Apple Nutrition
   • Guidelines for Protecting Non-Bearing Apple Plantings
   • Notes on Apple Diseases
   • Thinning and Plant Growth Regulators
   • Table 4-7. Products Used on Apples
5. Chapter 4: Apple Calendar - PDF 357 kb
6. Related Links

    

Botrytis grey mould and Penicillium storage diseases (suppression) (Preharvest sprays)

• Materials: Scala SC @ 2.0 L/ha
  • Comments: Scala: Apply 2 weeks before harvest.
  • Comments: Captan and Maestro: Summer applications provide some protection against storage rots.
• For more information - Ontario CropIPM: Grey mould

 

 

Precautions

Read the product label and follow all safety precautions.

Consult the product label for suggested water volumes. Otherwise, use enough water to ensure thorough spray coverage. Where the product rate is listed in amount per 1,000 L, and if a water volume is not provided on the label, use enough water to wet the foliage to the near drip point.

For information on identifying pests and monitoring apple orchards, refer to OMAFRA Publication 310, Integrated Pest Management for Apples.

Products are listed according to insecticide and fungicide group. Use products from different groups to prevent the development of 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 4-7. Products Used on Apples.

Related Links

• Ontario AppleIPM
• Apples in Ontario
• 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: Tree Fruit