Publication 360, Fruit Production Recommendations:
Pear Calendar - Second cover

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

1. Second cover
   • Oriental fruit moth
   • Scab
   • Sooty blotch
   • Precautions
2. Other Pear Calendar Sections
   • Dormant
   • Green tip
   • White bud (white petals showing on flowers)
   • Bloom
   • Petal fall
   • Special spray (when monitoring indicates the need at Petal fall)
   • First cover
   • Special spray (when monitoring indicates the need at First cover)
   • Summer sprays
   • Special sprays (when monitoring indicates the need about mid-Aug. and early Sept.)
   • Postharvest fruit treatment
3. Other Information on Pears
   • Thinning pears
   • Notes on Tender Fruit Insects & Diseases
   • Table 7-9. Products Used on Pears
   • Table 7-11. Activity of Fungicides on Stone Fruit Diseases
   • Tender Fruit Nutrition
4. Pear Calendar PDF 130 KB
5. Chapter 7 - Tender Fruit Calendar PDF 401 KB
6. Related Links

Oriental fruit moth (Second cover)

• Materials: Use one of:
  • Assail 70 WP @ 240 g/ha
  • Calypso 480 SC @ 440 mL/ha
  • Altacor @ 215 g/ha
  • Delegate WG @ 420 g/ha
  • Decis 5 EC @ 250 mL/ha
• Comments: Begin applications at egg hatch, usually 3-6 days after peak OFM flight as indicated by regional trap catches. Alternate products from different groups to prevent the development of resistance. See Table 7-9. Products Used on Pears.
  Decis: Maximum three sprays per season.
  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. Maximum four applications per season.
  Altacor and Delegate: Apply at first egg hatch, 50-100 degree days C (base 7.2°C) after biofix (first sustained moth catch). See Degree-day modelling and determining a biofix. Monitor populations and reapply 10-14 days later if required. Comply with the 14 days to harvest interval.
  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.

Scab (Second cover)

• Materials:Use one of the fungicides listed under Green tip. Reduce rate of Equal to 2.25 kg/ha in cover sprays. Check preharvest intervals on Table 7-9. Products Used on Pears.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
    • Pear scab

Sooty blotch (Second cover)

• Materials:Use one of
  • Supra Captan 80 WDG @ 3.75 kg/ha
    or Maestro 80 DF @ 3.75 kg/ha
  • Flint 50 WG @ 140 g/ha
  • Pristine WG @ 600-800 g/ha
• Comments: Spray twice, two weeks apart.
  Do not use Captan or Maestro on d'Anjou pears.
  

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 7-9. Products Used on Pears.

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