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Leek moth added to Matador/Warrior labels

July 14, 2008, Guelph, Ont. – The Pest Management Regulatory Agency (PMRA) recently announced the approval of URMULE registrations for crop group 3, bulb vegetables in Canada for Matador and Warrior insecticides for control of the leek moth.

July 14, 2008, Guelph, Ont. – The Pest Management Regulatory Agency (PMRA) recently announced the approval of URMULE registrations for crop group 3, bulb vegetables in Canada for Matador and Warrior insecticides for control of the leek moth, Acrolepiopsis assectella.

The active ingredient cyhalothrin-lambda was already labeled on a wide range of crops including grains, oilseeds, vegetables, fruits and potatoes. Note that Warrior will eventually replace Matador in the marketplace. 

This is the first full Canadian registration for this new pest of bulb vegetables that has caused considerable damage to leeks, garlic and other bulb vegetables in eastern Ontario and Quebec in recent years. This product was registered in Quebec as an emergency use registration in the past couple of years. The minor use registration of Matador and Warrior insecticide is a significant step towards developing the pest management toolkit for this pest.

The following is provided as a general outline only. Users should consult the complete label before using Matador or Warrior insecticides.     

Matador or Warrior insecticide can be used for control of leek moth on crop group 3, bulb vegetables at a rate of 188 mL product per hectare in 500 L water per hectare. Timing of applications should be based on the presence of vulnerable pest developmental stages and significant populations as determined by field monitoring. The application interval is seven days depending again on the presence of significant populations as determined by local monitoring. 

Do not make more than three applications per season. Do not apply within 14 days of harvest.

Follow all other directions for use on the Matador and Warrior insecticide labels carefully.

Matador or Warrior insecticides should be used in an integrated pest management program and in rotation with other management strategies to adequately manage resistance.

The minor use project for bulb vegetables was sponsored by the minor use office of the Ontario Ministry of Agriculture, Food and Rural Affairs.

Funding for the efficacy trials was provided by the Fresh Vegetable Growers of Ontario via the Canada-Ontario-Research-Development (CORD IV) initiative.

Additional work on the leek moth has also been funded by Agriculture and Agri-Food Canada, Pest Management Centre (AAFC-PMC) and OMAFRA.

For copies of the new minor use labels contact Jim Chaput, OMAFRA, Guelph (519) 826-3539, Hannah Fraser, OMAFRA horticulture crops entomologist at Vineland (519) 562-1674, Kristy Grigg, OMAFRA acting vegetable specialist at Guelph (519) 826-4963 or visit the Syngenta Canada website at www.syngenta.ca.