Publication 360, Fruit Production Recommendations:
Sweet Cherry Calendar - Second cover (12 days after first cover)

Excerpt from Publication 360, Fruit Production Recommendations 2010-11,
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Table of Contents

1. Second cover (12 days after first cover)
   • Cherry fruit fly
   • Plum curculio
   • Powdery mildew
   • Brown rot
   • Precautions
2. Other Sweet Cherry Calendar Sections
   • Dormant (before bud break)
   • Bloom
   • Petal fall
   • Shuck fall
   • First cover (12 days after shuck fall)
   • Third cover
   • Prepick
   • Postharvest orchard treatment
   • Special sprays (when monitoring indicates the need)
   • Postharvest fruit treatment
   • Fall spray
3. Other Information on Sweet Cherries
   • Growth Regulators for Sweet Cherries
   • Notes on Tender Fruit Insects & Diseases
   • Table 7-7. Products Used on Sweet Cherries
   • Table 7-11. Activity of Fungicides on Stone Fruit Diseases
   • Tender Fruit Nutrition
4. Sweet Cherry Calendar PDF 105 KB
5. Chapter 7 - Tender Fruit Calendar PDF 401 KB
6. Related Links

Cherry fruit fly (Second cover)

• Materials: Use one of :
  • GF-120 NF @1.5 L /ha
  • Entrust 80 W @ 109 g/ha
  • Admire 240 @ 233 mL/ha
  • Diazinon 50 W - see label
  • Zolone Flo @ 2.0 L/ha
  • Guthion 50 WSB - see label
    or Sniper - see label
• Comments: GF-120 NF: Spray as soon as monitoring traps indicate flies are present or 2-3 weeks before ripening. GF-120 is a bait formulation that requires large droplet size (4-6 mm); specialized application equipment may be needed. GF-120 will lose effectiveness if exposed to rain or overhead irrigation.
  Admire: Monitor for cherry fruit fly and apply as a foliar spray within 6 days of first fly emergence. Thorough uniform coverage is necessary for optimal control. Allow at least 10 days between applications.
  Diazinon, Zolone and Guthion: On early varieties, check the preharvest interval. Spray when early varieties are beginning to colour.
  Diazinon: Provides 10 days protection against cherry fruit fly.
  Zolone: Provides 12-14 days protection against cherry fruit fly.
  

Plum curculio (Second cover)

• Materials: Use one of :
  • Guthion 50 WSB - see label
    or Sniper - see label
  • Zolone Flo @ 2.0 L/ha
• Comments: Zolone: Helps control aphids but is only fair against plum curculio. Monitor 7 days after previous insecticide for new plum curculio damage. Apply insecticide if new crescent-shaped cuts are found.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
    • Plum curculio

Powdery mildew (Second cover)

• Materials: Use one of :
  • Cabrio EG @ 670 g/ha
  • Pristine WG @ 750 g/ha
  • Flint 50 WG @ 210 g/ha
• Comments: Powdery mildew is not a common problem on sweet cherries. Only required on susceptible varieties.
  Flint: Do not apply where spray drift may reach Concord grapes as it may cause crop injury.
  Pristine: Provides suppression of powdery mildew.

Brown rot (Second cover)

• Materials: Use one of :
  • Topas 250 E @ 500 mL/ha
    or Mission 418 EC @ 300 mL
  • Indar 75 WSP @ 140 g/ha
  • Rovral @1.75 kg/ha
  • Supra Captan 80 WDG @ 4.5 kg/ha
    or Maestro 80 DF @ 4.5 kg/ha
  • Elevate 50 WDG @ 1.7 kg/ha
  • Lance WDG @ 370 g/ha
  • Pristine WG @ 750 g/ha
• Comments: Alternate among groups and do not use products from the same group in consecutive sprays.
  Topas, Mission: Apply no more than two applications of Topas or Mission in the three weeks prior to harvest.
  Captan and Maestro: May cause leaf injury to Schmidt and Emperor Francis varieties in postbloom sprays.
  Pristine and Lance: Do not alternate Pristine with Lance.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
    • Brown rot

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 listed by fungicide and insecticide group. 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 7-7. Products Used on Sweet 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