New Products for Ontario Apple Growers in 2017

The 2017 supplement of Publication 360, Guide to Fruit Production is expected to be available in February 2017. This is an update to the full 2016-2017 Publication 360 edition, published earlier this year and includes information on new product registrations and changes from December 2015 to November 2016.

Here is a list of new product additions Ontario apple growers can look forward to seeing in for the upcoming season. For a full list of other registered products, refer to the full edition of Publication 360.

The following products are new product registrations or uses for 2017:

  • Buran (garlic powder) is a biopesticide registered for suppression of powdery mildew at 1.8% v/v (ie. 9 L in 500 L water/ha). Begin applications preventatively when conditions are conducive to disease development. Re-apply every 7-10 days if needed. Do not apply if rain is expected within 48 hours. Preharvest interval (PHI): 0 days; Re-entry period (REI): when dry; Maximum # of applications per year (on label): n/a.
  • Delegate (spinetoram) is a Group 5 insecticide registered for control of European apple sawfly at 420 g/ha. This pest has now been detected as far west as Georgian Bay, Barrie and Niagara regions and continues to move 30-40 km westward each year. Apply pre-bloom and/or post-bloom when thresholds have been reached. Re-apply at 14-21 day intervals, if monitoring indicates a need. Preharvest interval (PHI): 7 days; Re-entry period (REI): 12 hours; Maximum # of applications per year (on label): 3.
  • Semios CM Plus (pheromone) is a mating disruption pheromone registered for reduction in mating of codling moth in pome fruit. Delivery of this product is unique to Ontario using aerosol technology and wireless mesh network. Install 2.5 dispensers/ha in orchard prior to the flight of the first codling moth generation. Use a higher density (up to double the standard density) at the orchard edge toward the prevailing winds. Canisters contain 7675 puffs. Typical dispensing rate is 1 puff every 15 minutes over a maximum 12 hours per day (5PM to 5AM), so canisters should last for approximately 160 days. For more information regarding installation or application, contact Semios (info@semios.com) at least 6-8 months prior to the planned use. Preharvest interval (PHI): not specified on label; Re-entry period (REI): not specified on label; Maximum # of applications per year (on label): not specified on label.
  • Senator 50 SC (thiophanate-methyl) is a Group 1 fungicide registered for control of scab and powdery mildew at 250 mL/1,000 L water. For resistance management, tank-mix with one of the following compatible protectant scab fungicides: Maestro 80 DF or Supra Captan 80 WDG at 0.625 kg/1,000 L water (note: do not use within 14 days of oil) or Granuflo-T at 1.5-2.25 kg/1,000 L water. Historically, Benlate-resistant forms of apple scab have been present in Ontario. Senator belongs to the same chemical family as Benlate. Use caution if Benlate was used in your orchard in the past. Begin applications preventatively when conditions are conducive to disease development. Reduce spray intervals under conditions of severe disease pressure. Preharvest interval (PHI): 1 day; Re-entry period (REI): 12 hours; Maximum # of applications per year (on label): max. 1.75 L/ha (Supra Captan/Maestro tank-mix) / max. 0.875 L/ha (Granuflo tank-mix).
  • Sivanto Prime (flupyradifurone) is a Group 4D insecticide registered for the control of rosy apple aphid, green apple aphid, white apple leafhopper and potato leafhopper at 500-750 mL/ha, and scale (San Jose and oystershell) at 750-1,000 mL/ha + 0.25% v/v oil. If using with oil, may cause bark injury on some varieties such as Red Delicious, Empire and Mutsu/Crispin. Do not use oil within 14 days of using Supra Captan, Maestro, Folpan or any other product containing sulphur. Do not apply within 48 hours of freezing temperatures, when temperatures exceed 25 °C, to crops under moisture stress or just prior to rain. Sivanto Prime is toxic to certain beneficial insects. Where possible, rotate with products from different groups. Re-apply after 10-14 days, if needed. Preharvest interval (PHI): 14 days; Re-entry period (REI): 12 hours; Maximum # of applications per year (on label): max. 2 L/ha.

The following are important notices regarding changes to existing labels or use patterns:

  • Vivando (penthiopyrad) is no longer registered for use on apples for powdery mildew.
  • Due to the decision by the Pest Management Regulatory Agency (PMRA) to phase-out diazinon insecticides, Diazinon 500 E (PCP #11889) and Diazinon 50 WSP (PCP #29976) will no longer be permitted for use on apple after December 31, 2016.
  • Due to post-application risk to workers, the PMRA has re-evaluated the use of Sevin XLR (PCP #27876). As of September 20, 2016, Sevin is no longer registered for insecticide use on apples. For thinning, the following changes have been made:
    • Maximum one application per year.
    • Wearing chemical resistant gloves is recommended for hand-thinning following application.
    • For high density trellised orchards - Maximum application rate per growing season is 1.5 kg a.i./ha. Minimum re-entry period is 14 days for hand-thinning and managing hand-line irrigation, and 4 days for pruning, scouting, pinching, tying and training.
    • For low density, traditional, non-trellised orchards - Maximum application rate per growing season is 1.0 kg a.i./ha. Minimum re-entry period is 10 days for hand-thinning and managing hand-line irrigation, and 6 hours for pruning, scouting, pinching, tying and training.

The supplement can be downloaded from the OMAFRA website at ontario.ca/crops. Printed copies along with many other factsheets, publications and resources can be ordered from ServiceOntario:

  • Online at ServiceOntario Publications
  • By phone through the ServiceOntario Contact Centre, Monday to Friday 8:30 am - 5:00 pm
    • 416-326-5300
    • 416-325-3408 (TTY)
    • 1-800-668-9938 (Toll-free across Canada)
    • 1-800-268-7095 (TTY toll-free across Canada)
  • In person at ServiceOntario Centres located throughout the province or at any OMAFRA Resource Centre.

For more information:
Toll Free: 1-877-424-1300
E-mail: ag.info.omafra@ontario.ca