Publication 360, Fruit Production Recommendations:
Raspberry Calendar - Prebloom (until blossoms open)



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

  1. Prebloom (until blossoms open)
  2. Other Raspberry Calendar Sections
  3. Other Information on Raspberries
  4. Raspberry Calendar PDF 142 KB
  5. Pub 360, Chapter 5, Berry Crops - PDF 364 kb
  6. Related Links

Prebloom (until blossoms open)

Anthracnose or Spur blight (Prebloom)Spur blightanthracnose fruit rot

 

Powdery mildew (Prebloom)

  • Materials: Senator 70 WP @ 500 g/ 1,000 L water or 1.10 kg/ha
  • Comments: In problem areas, spray when mildew is first observed. Repeat in 7–10 days. For resistance management, maximum two applications per season.

 

Raspberry sawfly (Prebloom)Raspberry sawfly larvae

  • Materials: Diazinon 50 W @ 1.00 kg/ 1,000 L water
  • Comments: These green bristly larvae feed between the veins on new growth causing long holes and shredding. Apply when damage appears, but before first bloom. Diazinon also controls aphids and raspberry fruit worm.
  • Learn more:

 

 

Raspberry fruitworm (Prebloom)Raspberry fruitworm

  • Materials: Apply one of;
    • Malathion 25 W @ 4.50 kg/ 1,000 L water
    • Diazinon 50 W @ 1.00 kg/ 1,000 L water
  • Comments: These small brown beetles feed on new growth and blossom clusters. Larvae infest fruit cup. Spray to control adults when damage appears but before first bloom. Repeat in seven to ten days where there is a history of injury.
  • Learn more:

 

Leafrollers (Prebloom)

  • Materials: Foray 48BA @ 2.80 L/ha or Bioprotec CAF @ 2.80 L/ha or Dipel 2X DF @ 550 g/ha
  • Comments:Leafrollers are not usually a problem in Ontario. Susceptible varieties include Chilliwack, Chilcotin, Tulameen and Comox and other varieties from the Pacific Northwest. Do not apply these as dilute sprays
    Foray 48 BA and Bioprotec CAF    : Apply in no more than 600 L water per ha.
     

Clipper weevil (Prebloom)clipper weevil

  • Materials: Malathion 25 W @ 4.50 kg/ 1,000 L water
  • Comments: Increasingly common, especially where strawberries are also grown. Clipped buds and small round holes in petals indicate clipper weevil activity. Strawberry Clipper Weevil: A Major Pest of Strawberry, OMAFRA Factsheet No 99-031

     

 

 

Two-spotted spider mite (Prebloom)Two spotted spider mite damage

  • Materials: Apply one of;
    • Apollo SC@ 500 ml/ha
    • Kelthane 50 W @ 2.00 kg/ha
  • Comments: Alternate miticides from year to year. Thorough spray coverage of the lower leaf surface is required. Beneficial mites can be introduced to prevent mite build-up.
    Apollo    : Apollo kills mite eggs and very young nymphs, but not older nymphs and adults. Apply when monitoring indicates mites are developing, mostly in the egg stage. Maximum one application per season.
    Kelthane: Apply when mite populations are beginning to build and mites are mostly in the nymph stage. Maximum one application per season.
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Precautions

Always 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 according to insecticide and fungicide family groups. Use products from different family groups to help 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 5-14. Products Used on Raspberries.

Related Links

 


For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 01 June 2008
Last Reviewed: 16 July 2010