Publication 360, Fruit Production Recommendations:
Apricot Calendar - Shuck fall (10-12 days after last spray)

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

1. Shuck fall (10-12 days after last spray)
   • Brown rot
   • Plum curculio
   • Lesser peachtree borer, Peachtree borer
   • 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)
   • First cover (10 - 12 days after Shuck fall)
   • Special sprays (when monitoring indicates the need)
   • Prepick to harvest
   • Postharvest fruit treatment
3. Other Information on 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
   
   

Brown rot (Shuck fall)

• Materials: Use one of:
  • Topas 250 E @ 500 mL/ha
    or Mission 418 EC @ 300 mL/ha
  • Indar 75 WSP @ 140 g/ha
  • Lance WDG @ 370 g/ha
  • Pristine WG @ 750 g/ha
  • Vangard 75 WG @ 370 g/ha
  • Rovral @ 1.5 kg/ha
  • SupraCaptan 80 WDG @ 4.5 kg/ha
    or Maestro 80 DF @ 4.5 kg/ha
• Comments:For resistance management, rotate among products from different groups.
  Topas, Mission and Indar: Do not alternate Topas, Mission and Indar. Use one of these products and then alternate to another group.
  Pristine and Lance: Do not alternate Pristine with Lance. Use one of these products and then alternate to another group.
• Learn more:
  • Notes on Tender Fruit Diseases and Insects
    • Brown rot

Plum curculio (Shuck fall)

• Materials: Use one of:
  • Assail 70 WP at 240 g/ha
  • Guthion 50 WSB or or Sniper - see label
  • Sevin XLR @ 6.25 L/ha
• Comments:Monitor for plum curculio damage and spray if fresh damage is found.
  Assail: Under high insect pressure, may provide suppression rather than control of plum curculio.
• Learm more:
  • Notes on Tender Fruit Diseases and Insects
    • Plum curculio

Lesser peachtree borer, Peach tree borer (Shuck fall)

• Materials: Use one of:
  • Thionex 50 W @ 1.5 kg / 1,000 L
    or Thiodan 4 EC @ 1.75 L / 1,000 L
• Sevin XLR @ 6.25 L/ha
• Comments:Peachtree borers are sporadic pests of apricots. In areas with high borer populations, use the following spray regime. Use pheromone traps to monitor adult activity and begin sprays one week after first flight. Make three applications at 5-10 day intervals. Direct these sprays with a handgun to cover trunk and scaffold limbs thoroughly; do not spray fruit. Sevin is registered only for lesser peachtree borer. See Table 7-5. Products Used On Apricots for preharvest intervals.
• Learm more:
  • Notes on Tender Fruit Diseases and Insects
    • Peach tree borers
  
  

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