Publication 360, Fruit Production Recommendations:
Strawberries (Fruiting Years) - Renovation (after mowing, to new growth)

Table of Contents

1. Two-spotted spider mite
2. Powdery mildew
3. Precautions
4. Learn more
5. Other Strawberry Calender sections (Fruiting Years)
   • When new growth appears
   • When flower buds are visible in the crown
   • As flower buds extend from crown
   • First bloom
   • 7 to 10 days after first bloom
   • Preharvest
   • Renovation (after mowing)
   • Mid-August and again once or twice at 2-week intervals
   • Fall
6. Other Information on Strawberries
   • Strawberry Nutrition
   • Strawberry Calendar (Non-Bearing)
   • Notes on Insects and Diseases on Strawberries
     • Table 5-19. Products Used on Strawberries
     • Table 5-20. Activity of Fungicides on Strawberry Diseases
     • Table 5-21. Miticides Registered on Strawberries
     • Table 5-22. Activity of Insecticides on Strawberry Pests
     • Table 5-23. Strawberry Variety Disease Ratings
7. Other Information on Berries
   • Blueberries
   • Currant and Gooseberries
   • Raspberries
   • Saskatoons
8. Pub 360 Chapter 5 - Strawberry Calendar - (PDF 229 KB)
9. Related Links
   

Two-spotted spider mite (after mowing, to new growth)

For best results, use high water volumes to ensure good coverage of the underside of leaves. To discourage resistance, alternate products from year to year and do not apply any product more than once each year.

• Materials: Apply one of;
  • Pyramite @ 600 g or Nexter @ 600 g
  • Oberon @ 880 mL
    • Comments: Oberon: This product is translaminar but not systemic. Good spray coverage of both upper and lower leaf surfaces is needed for control. Use adequate water volume for complete coverage.
  • Agri-Mek 1.9% EC @ 1.00 L
    • Comments: Agri-Mek: Apply in sufficient water, minimum 375 L/ha, to ensure thorough leaf coverage.
  • Apollo SC @ 500 ml
    • Comments: Apollo: Kills mite eggs and very young nymphs, but not older nymphs and adults. Apply when monitoring indicates mites are beginning to hatch or are mostly in the egg stage.

Powdery mildew (after mowing, to new growth)

Begin applications on susceptible varieties (Annapolis, Jewel, Veestar) when disease first appears on new growth or when conditions (warm humid weather, or frequent dews) favour development. Alternate fungicides.

• Materials: Apply one of;
  • Nova 40 W @ 340 g
  • Pristine WG @ 1.60 kg
  • Actinovate SP @ 425 g
    • Comments: Actinovate: Provides suppression rather than control; see Table 2-6. Efficacy Ratings for Pesticides. Spray to wet foliage but avoid runoff. See Biopesticides for disease control and notes on Streptomyces lydicus (Actinovate).
      

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.

Products are listed according to insecticide and fungicide family groups. Use products from different groups to help prevent pest resistance. For resistance management refer to Pest Resistance to Insecticides, Fungicides, Miticides.

For information on strawberry pest identification, monitoring and thresholds, see ONTARIO CropIPM: Integrated Pest Management Training, available at www.ontario.ca/cropIPM or as OMAFRA Publication AF141 in CD format.

For re-entry period, maximum number of applications and chemical group, see Table 5-19. Products Used on Strawberries.

Learn more:

• Notes on Strawberry Diseases and Insects
  • Two spotted spider mite

Related Links

• Notes on Strawberry Diseases and Insects
• OMAFRA Berry Index Page
• 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: Berry Crops