Publication 360, Fruit Production Recommendations:
Filbert/Hazelnut Calendar - Postharvest

Table of Contents

1. Postharvest
   • Bacterial blight
   • Precautions
2. Other Information on filberts/hazelnuts
   • Bud break (up to ¼ inch vegetative growth)
   • Early Spring (> ¼ inch vegetative growth)
   • Summer
   1. Other information on tree nuts
   • Pecan and Sweet Chestnut calendar
   • Walnut calendar
   • Table 8-1. Products used on tree nuts
   • Notes on Nut Diseases and Insects
3. Pub 360 Chapter 8 - Tree Nuts (PDF 102 kb)
4. Related Links

Bacterial blight (Postharvest)

• Materials: Use one of:
  • Guardsman Copper Oxychloride 50 @ 3.00 kg/ha or Copper Spray @ 3.00 kg/ha.
• Comments: Apply the first spray in late August or early September before the start of the fall rains and nut drop. Repeat after harvest at leaf fall. Repeat in early spring just before leaf bud break. Use 3.0 kg/ha on small trees, and up to 9.0 kg/ha on large trees in proportionately more water.

Precautions

Read the 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.

For preharvest interval, re-entry period, maximum number of applications and chemical group, see Table 8-1. Products Used on Nut Crops

Related Links

• Notes on Nut Diseases and Insects
• Agroforestry in Ontario (including Tree Nuts)
• 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 75: Guide To Weed Control