Cucurbits Insecticides Insects Pest Management

Organic field cucurbit producers receive emergency use registration for Pyganic® Crop Protection EC for control of cucumber beetles

J. Chaput, OMAF/MRA, Minor Use Coordinator, Guelph

The Pest Management Regulatory Agency (PMRA) recently announced the approval of an emergency use registration for PYGANIC® Crop Protection EC 1.4 II (pyrethrins) for control of cucumber beetles on field cucumbers, squash, melons and processing pumpkins in Canada. Pyganic® was already registered for use against several insects of beans, tomatoes, blueberries, grapes, raspberries and roses in Canada.

This emergency use for Pyganic® can be used only in Quebec, Prince Edward Island, New Brunswick and Ontario until October 31, 2013.

Cucumber beetles are the most common and serious pest of field cucurbits in North America and have been identified annually on the Canadian minor use priority list and more specifically by organic producers of field cucurbits.  The emergency use registration of Pyganic® is an important temporary step towards improving the pest management toolkit for organic producers of cucumbers, squash, melons and processing pumpkins.

This emergency use submission was initiated by the provinces of Quebec, Ontario, New Brunswick and PEI in response to increasingly serious damage from cucumber beetles to organic field cucurbits as identified by producers.  The following is provided as an abbreviated, general outline only. Users should consult the complete emergency use label before using Pyganic® Crop Protection EC.

PYGANIC® Crop Protection EC can be applied at a rate of 4.65 L product per hectare as soon as cucumber beetles are observed.  Apply in sufficient spray volume to ensure complete and thorough coverage of plant surfaces.  Applications can be made on a 5 day interval if monitoring indicates a need.  A maximum of 8 applications per year is permitted.

Follow all other precautions and directions for use on the Pyganic® label carefully. This product is highly toxic to honey bees and native pollinators exposed to direct spray on blooming crops or other vegetation. Avoid use when pollinators are actively foraging.  This product is toxic to aquatic organisms.  Do not contaminate any body of water by direct application, cleaning of equipment or disposal of wastes.

Pyganic® should be used in an IPM program and in rotation with other management strategies to adequately manage resistance.  Although Pyganic® is OMRI listed in the U.S., growers should consult their organic certification body in Canada to confirm that it can be used here also.

We wish to acknowledge the Ministère de l’Agriculture, des Pêcheries et de l’Alimentation du Quebec (MAPAQ) for coordinating the submission on behalf of the participating provinces. We also wish to acknowledge the personnel of McLaughlin Gormley King Co. for their support of this registration and the personnel of the Pest Management Regulatory Agency for evaluating and approving this important pest management tool.

For copies of the new minor use label contact Melanie Filotas, OMAF/MRA, Specialty Crops IPM Specialist, Simcoe (519) 426-4434, Jim Chaput, OMAF/MRA, Guelph (519) 826-3539 or visit or

 Note:  This article is not intended to be an endorsement or recommendation for this particular product, but rather a notice of registration activity

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