Publication 360, Fruit Production Recommendations:
Sour Cherry Calendar - Petal fall

Table of Contents

1. Petal fall
   • Leaf spot
   • Black knot
   • Precautions
2. Other Sour Cherry Calendar Sections
   • Dormant
   • Prebloom
   • Bloom
   • Shuck split
   • First cover (12 days after shuck split)
   • Special sprays (when monitoring indicates the need)
   • Second cover (12 days after first cover)
   • Third cover
   • Special sprays (when monitoring indicates the need)
   • Preharvest
   • Postharvest
   • Special sprays (when monitoring indicates the need)
   • Postharvest fruit treatment
   • Fall spray
3. Other Information on Sour Cherries
   • Growth regulators for Sour Cherries
   • Notes on Tender Fruit Insects & Diseases
   • Table 7-6. Products Used on Sour Cherries
   • Table 7-11. Activity of Fungicides on Stone Fruit Diseases
   • Tender Fruit Nutrition
4. Sour Cherry Calendar PDF 115 KB
5. Chapter 7 - Tender Fruit Calendar PDF 401 KB
6. Related Links

Leaf spot (Petal fall)

• Materials: Use one of:
  • Bravo 500 @ 7.0 L/ha
  • Supra Captan 80 WDG @ 4.5 kg/ha
    or Maestro 80 DF @ 4.5 kg/ha
  • Nova 40 W @ 340 g/ha
  • Topas 250 E @ 500 mL/ha
    or Mission 418 EC @ 300 mL/ha
  • Pristine WG @ 750 g/ha
  • Flint 50WG @ 210 g/ha
  • Ferbam 76 WDG - see label
  • Equal 65 WP @ 2.25 kg/ha
• Comments:Spray only if rain is forecast between Bloom and Shuck split sprays.
  Alternate fungicides from different chemical groups.
  Bravo: Make one application to control early season leaf spot.
  Flint and Pristine: Do not alternate Pristine with Flint.
  Flint: Do not apply where spray drift may reach Concord grapes as it may cause crop injury.
  

Black knot (Petal fall)

• Materials: Use one of:
  • Bravo 500 @ 7.0 L/ha
  • Indar 75 WSP @ 140 g/ha
  • Topas 250 E @ 500 mL/ha
    or Mission 418 EC @ 300 mL/ha
• Comments: This spray is only needed on sour cherry orchards with a history of black knot.
  Topas, Mission: Provide suppression rather than control of black knot. Refer to label. See Table 2-6. Efficacy Ratings for Pesticides.
  

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.
Products are grouped by fungicide and insecticide family. Use products from different groups to 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 7-6. Products Used on Sour Cherries.

Related Links

• 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 360: Fruit Production Recommendations