Category Archives: Pest Management

Reason® 500SC Fungicide label expanded for management of downy mildew on basil and Brassica crops

Jim Chaput, Minor Use Coordinator

The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor use label expansion registration for Reason® 500SC Fungicide for control of downy mildew on basil and an amendment to update the label to include management of downy mildew on the new Brassica vegetable crop groups 5-13 and 4-13B in Canada. The head and stem Brassica vegetable group includes cabbage, napa cabbage, Brussels sprouts, cauliflower and broccoli and the new Brassica leafy greens crop group includes arugula, Chinese broccoli, Chinese cabbage, bok choy, collards, cress, kale, mizuna, mustard greens, etc.  Reason® Fungicide was already labeled for use on a number of crops in Canada for control of several diseases.
Continue reading Reason® 500SC Fungicide label expanded for management of downy mildew on basil and Brassica crops

Minor Use Label Expansion – Prowl H2O for transplant tomatoes on mineral soil

Jim Chaput – OMAFRA, Minor Use Coordinator

The Pest Management Regulatory Agency (PMRA) recently announced the approval of minor use label expansion registration for Prowl® H2O Herbicide for control of labeled weeds on transplanted field tomatoes grown in mineral soil in Canada. Prowl® H2O Herbicide was already labeled for use on a number of crops in Canada for control of several weeds.

This minor use project was submitted by Ontario as a result of minor use priorities established by growers and extension personnel.

The following is provided as an abbreviated, general outline only. Users should be making weed management decisions within a robust integrated weed management program and should consult the complete label before using Prowl® H2O Herbicide.

Crop Target Rate (L/ha) Application Information PHI (days)
Transplanted field tomatoes Labeled weeds 2.2 Apply once as a broadcast surface application prior to transplanting tomatoes 21

Prowl® H2O Herbicide is toxic to aquatic organisms and non-target terrestrial plants.  Do not apply this product or allow drift to other crops or non-target areas. Do not contaminate off-target areas or aquatic habitats when spraying or when cleaning and rinsing spray equipment or containers. In field tomatoes, do not apply Prowl® H2O Herbicide more than once in two consecutive years.

Follow all other precautions, restrictions and directions for use on the Prowl® H2O Herbicide label carefully.

For a copy of the new minor use label contact your local crop specialist, regional supply outlet or visit the PMRA label site https://www.canada.ca/en/health-canada/services/consumer-product-safety/pesticides-pest-management/registrants-applicants/tools/pesticide-label-search.html

Minor Use Label Expansion – Delegate for flea beetles on root vegetables

The Pest Management Regulatory Agency (PMRA) recently announced the approval of a Minor Use label expansion of Delegate Insecticide for suppression of flea beetles on several root vegetables. Crops added to the label:

  • Radish
  • Horseradish
  • Oriental Radish
  • Rutabaga
  • Turnip
  • Carrot

Delegate was already labeled for control of diamondback moth, cabbage looper and imported cabbageworm on these crops.

The following is provided as an abbreviated, general outline only. Users should consult the complete label before using Delegate Insecticide.

Crops Target Rate Max. # of Applications per year Pre-Harvest Interval (PHI)
  • Carrot
  • Radish
  • Horseradish
  • Oriental Radish
  • Rutabaga
  • Turnip
Flea Beetles (suppression) 200 g/ha

(81 g/acre)

3 3 days

Follow all other precautions and directions for use on the Delegate label carefully.

 

Tracking the march of leek moth in Ontario

Leek moth (Acrolepiopsis assectella) is an invasive pest of European and Asian origin. The first North American detection occurred near the National Capitol Region (Ottawa) in 1993.  Since then, the leek moth has spread Continue reading Tracking the march of leek moth in Ontario

Spray Coverage in Carrot Potato and Onion

Jason Deveau, Application Technology Specialist – OMAFRA;
Dennis Van Dyk, Vegetable Crop Specialist – OMAFRA

In recent years, Syngenta has been promoting the Defy 3D nozzle in the UK, which is a 100° flat fan, designed to run alternating 38° forward or backward along the boom. They prescribe a boom height of 50 to 75 cm, 30-40 psi, and travel speeds of 10 to 14 km/h in cereals and vegetables. Compared to a conventional flat fan, they claim that the angle and medium-coarse droplets promise less drift and improved coverage.

In 2017, Hypro and John Deere began distributing the Defy 3D in North America. Our goal was to explore coverage from the 3D in vegetable crops. We compared the nozzle’s performance to common grower practices in onion, potato and carrot in the Holland Marsh area of Ontario.

Marsh

Continue reading Spray Coverage in Carrot Potato and Onion