Publication 360, Guide to Fruit Production Recommendations:
Sour Cherry Calendar - Shuck split

Pub 360, Guide to Fruit Production Recommendations > Chapter 7: Tender Fruit > Sour Cherry Calendar > Shuck split

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Table of Contents

1. Shuck
   • Plum curculio
   • Brown rot
   • Leaf spot
   • European red mite
   • Black knot
   • Precautions
2. Other Sour Cherry Calendar Sections
   • Dormant
   • Prebloom
   • Bloom
   • Petal fall
   • 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
   • Table 7-6. Products Used on Sour Cherries
   • Table 7-11. Activity of Fungicides on Stone Fruit Diseases
   • Table 7-12. Activity of Insecticides and Miticides on Tender Fruit Pests
   • Notes on Tender Fruit Insects & Diseases
   • Tender Fruit Nutrition
4. Sour Cherry Calendar (PDF 64 kb)
5. Chapter 7 - Tender Fruit Calendar (PDF 40 KB)
6. Related Links

Plum curculio (Shuck split)

• Materials: Use one of:
  • Assail 70 WP @ 240 g/ha
  • Clutch 50 WDG @ 210 g/ha
  • Imidan 50 WP @ 3.75 kg/ha
• Comments: Spray when most shucks are off and plum curculio activity is observed.
  Assail: Under high insect pressure, may provide suppression rather than control of plum curculio.
  Clutch: If applied at the appropriate timing and at 420 g/ha, Clutch may provide suppression of oriental fruit moth.
  

Brown rot (Shuck split)

• Materials: Use one of:
  • Topas @ 500 mL/ha
    or Jade @ 500 mL/ha
    or Mission 418 EC @ 300 mL/ha
  • Indar 75 WSP @ 140 g/ha
  • Rovral @ 1.5 kg/ha
  • Elevate 50 WDG @ 1.7 kg/ha
  • Lance WDG @ 370 g/ha
    or Cantus WDG @ 370 g/ha
  • Pristine WG @ 750 g/ha
  • Bravo 500 @ 7.0 L/ha
    or Echo 720 @ 3.5-6.3 L/ha
  • SupraCaptan 80 WDG @ 4.5 kg/ha
    or Maestro 80 DF @ 4.5 kg/ha
• Comments: Do not use products from the same group in consecutive sprays.
  Topas, Jade, Mission, Indar: Do not rotate among these products.
  Topas, Jade, Mission: No more than two applications in the three weeks prior to harvest. These products also suppress black knot.
  Pristine, Lance, Cantus: Do not alternate Pristine with Lance or Cantus.
  Bravo, Echo: Do not apply after shuck split to avoid fruit injury.
  Echo 720: Make 1-3 applications from white bud through shuck split. Use higher rate for trees greater than 6 m in height or if weather is warm (above 16°C) and wet during bloom.
  
  

Leaf spot (Shuck split)

• Materials: Use one of the fungicides recommended at Petal fall with the exception of Ferbam. Do not apply Bravo or Echo after shuck split to avoid fruit injury.

European red mite (Shuck split)

• Materials: Use one of:
  • Nexter @ 300 g/ha
• Comments: Thorough coverage is necessary for good mite control. Only needed in heavily infested sour cherry orchards.

Black knot (Shuck split)

• Materials: Use one of:
  • Bravo 500 @ 7.0 L/ha
    or Echo 720 @ 4.2 - 6.3 L/ha
• Indar 75 WSP @ 140 g/ha
• Topas 250 E @ 500 mL/ha
  or Jade @ 500 mL/ha
  or Mission 418 EC @ 300 mL/ha
• Comments: This spray is needed only in sour cherry orchards with a history of black knot. Spore release may be delayed in dry springs. Under these conditions, extend fungicide coverage to first cover. See OMAFRA Factsheet Black Knot of Plums, Order No. 05-017, for more information.
  Bravo, Echo: Do not apply after shuck split to avoid fruit injury.
  Topas, Jade, Mission: Provide suppression rather than control of black knot.
  

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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.

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.

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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