Publication 360, Fruit Production Recommendations:
Apricot Calendar - Special sprays (when monitoring indicates the need)

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

1. Special sprays (when monitoring indicates the need)
   • European red mite
   • Oriental fruit moth
   • Oblique banded leafroller or Leafrollers
   • Precautions
2. Other Apricot Calendar Sections
   • Dormant (in late March or early April before buds swell)
   • Bloom
   • Petal fall
   • Shuck split (when about 50% of shucks have split)
   • Shuck fall (10-12 days after last spray)
   • First cover (10-12 days after Shuck fall)
   • Prepick to harvest
   • Postharvest fruit treatment
3. Other Information of Apricots
   • Notes on Tender Fruit Insects & Diseases
   • Table 7-5. Products Used on Apricots
   • Table 7-11. Activity of Fungicides on Stone Fruit Diseases
   • Tender Fruit Nutrition
4. Apricot Calendar PDF 100 KB
5. Chapter 7 - Tender Fruit Calendar PDF 401 KB
6. Related Links

European red mite (Special sprays)

• Materials: Use one of:
  • Envidor 240 SC @ 750 mL/ha
• Comments:European red mite is a sporadic pest and is rarely a problem in apricot orchards. Apply when red mites build up to 10 active stages per leaf in the absence of beneficial predatory mites.
  Envidor: Works slowly, especially in cool weather. Control may not be apparent for 2-3 weeks. Apply before mite populations build up. Maximum one application per season.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
  • Mites

Oriental fruit moth(Special sprays)

• Materials: Use one of:
  • Altacor @ 285 g/ha
  • Delegate WG @ 420 g/ha
  • Assail 70 WP @ 120-240 g/ha
• Comments:
  Altacor and Delegate: Apply at first egg hatch, 50-100 degree days C (base 7.2°C) after biofix (first sustained moth catch). Monitor populations and reapply 10-14 days later if required.
  Altacor: Do not exceed 645 g/ha per year.
  Assail: For optimum activity, use the 240 g/ha rate. Apply in a minimum spray volume of 1,000 L/ha. Do not apply more than once every 12 days. Will also control plum curculio.
  For resistance management, if more than one spray is required for this generation, use a product from the same chemical group. For subsequent generations, rotate to another chemical group.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
  • Oriental fruit moth

Obliquebanded leafroller, leafrollers (Special sprays)

• Materials: Use one of:
  • Altacor @ 285 g/ha
  • Delegate WG @ 420 g/ha
  • Success 480 SC @ 182 mL/ha
    or Entrust 80 W @ 109 g/ha
  • Dipel 2X DF @ 1.125 kg/ha
    or Bioprotec CAF @ 4.0 L/ha
• Comments:
  Altacor and Delegate: For OBLR summer generation, apply at 240-280 degree days C (base 6.1°C) after biofix (first sustained moth catch).
  Altacor: Do not exceed 645 g/ha per year.
  For resistance management, if more than one spray is required for this generation, use a product from the same chemical group. For subsequent generations, rotate to another chemical group.
  B.t. products (Dipel, Bioprotec): Make two applications at 5-7 day intervals if activity of the larvae is extended. B.t. products work best if applied in the evening or on a cloudy day. See Biopesticides and reduced risk products for insect control.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
  • Obliquebanded leafroller

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 7-5. Products Used on Apricots.

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