Publication 360, Fruit Production Recommendations:
Pear Calendar - Postharvest fruit treatment

Excerpt from Publication 360, Fruit Production Recommendations 2010-11,
Order this publication

Table of Contents

1. Postharvest fruit treatment
• Blue mould
• 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
• Second cover
• Special sprays (when monitoring indicates the need about mid-Aug. and early Sept.)
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

Blue mould (Postharvest fruit treatment)

• Materials: Use one of:
• Mertect SC @ 500 mL/ 500 L water
• Scholar 50 WP @ 227 g/378 L water
• Comments: Postharvest treatment may be necessary during wet harvest seasons. These treatments will prolong storage time while providing control of postharvest diseases.
  Mertect: For use in dip tank or drencher. Continuous agitation required. Follow label instructions. Does not control any blue mould (Penicillium) or grey mould (Botrytis), which is resistant to benzimidazole fungicides (e.g. Benlate).
  Scholar: Scholar also controls grey mould. See label for dip and drench instructions.
  
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
    • Blue mould

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