Re-evaluation Decision RVD2018-40, Pyridaben and Its Associated End-use Products

Pest Management Regulatory Agency
19 December 2018
ISSN: 1925-0886 (PDF version)
Catalogue number: H113-9/2018-40E-PDF (PDF version)

To obtain a full copy of Re-evaluation Decision RVD2018-40, Pyridaben and Its Associated End-use Products please contact our publications office.

Should you require further information please contact the Pest Management Information Service.

Summary

Table of Contents

Re-evaluation Decision

Under the authority of the Pest Control Products Act, all registered pesticides must be regularly re-evaluated by Health Canada’s Pest Management Regulatory Agency (PMRA) to ensure that they continue to meet current health and environmental safety standards and continue to have value. The re-evaluation considers data and information from pesticide manufacturers, published scientific reports and other regulatory agencies. The PMRA applies internationally accepted risk assessment methods as well as current risk management approaches and policies.

Pyridaben is an insecticide and acaricide registered for use on greenhouse and outdoor ornamentals, greenhouse food crops (peppers, cucumbers and tomatoes), orchard crops, grapes, raspberries and strawberries to control mites, whiteflies and pear psylla. Currently registered products containing pyridaben are listed in Appendix I.

Re-evaluation Decision RVD2018-40, Pyridaben and Its Associated End-use Products presents the final regulatory decisionFootnote 1 for the re-evaluation of pyridaben, including the required risk mitigation measures to protect human health and the environment. All products containing pyridaben that are registered in Canada are subject to this re-evaluation decision. This re-evaluation decision has undergone a 60-day consultation period on the Proposed Re-evaluation Decision PRVD2016-04, Pyridaben,Footnote 2 which ended on 5 April 2016.

The registrant provided Health Canada with an environmental toxicology study and comments on the health risk assessments. Additional information was also received from Ontario grape growers. Comments and information received are summarized in Appendix II of RVD2018-40, along with the response by Health Canada. The risk assessments were revised in consideration of the information provided (see Science Evaluation Update of RVD2018-40), resulting in changes to the proposed regulatory decision as described in PRVD2016-04. A reference list of data used as the basis for the proposed re-evaluation decision is included in PRVD2016-04, and further data used in the re-evaluation decision is listed in Appendix V of RVD2018-40.

Outcome of Science Evaluation

Health risks have been shown to be acceptable when pyridaben is used according to the revised label directions, which include restricted-entry interval (REI) requirements for all crops.

Pyridaben enters the environment when used to control insects on food crops and outdoor ornamentals. Environmental risks of pyridaben continue to be acceptable when used according to the revised label directions.

Regulatory Decision for Pyridaben

Health Canada has completed the re-evaluation of pyridaben. Under the authority of the Pest Control Products Act, Health Canada has determined that continued registration of products containing pyridaben is acceptable.

An evaluation of available scientific information found that health and environmental risks and the value of pyridaben continue to be acceptable when products are used according to the conditions of registration, which include required amendments to label directions. Label amendments, as summarized below and listed in Appendix IV of RVD2018-40, are required for all technical and end-use products. No additional data are requested.

Risk Mitigation Measures

Registered pesticide product labels include specific directions for use. Directions include risk mitigation measures to protect human health and the environment and must be followed by law.

Human Health

The following risk-reduction measures are required for continued registration of pyridaben in Canada:

  • Increased REIs for postapplication activities on grapes and a 12-hour REI on remaining crops to protect workers and those entering treated areas.
  • Precautionary statement prohibiting use in residential areas to protect the public from non-occupational exposure.
  • Precautionary statements to clarify protective equipment for workers.
  • Precautionary statement to minimize human exposure from spray drift or spray residues resulting from drift.

Environment

  • Precautionary statements to protect non-target terrestrial and aquatic organisms.
  • Spray buffer zones to protect non-target terrestrial and aquatic habitats.
  • To protect bees and other pollinators, restrictions to applications when crops are not blooming or when bees are not actively foraging.
  • Precautionary statements to identify environmental hazards and prevent runoff from areas of application to aquatic habitats.

Next Steps

To comply with this decision, the required mitigation measures must be implemented on all product labels sold by registrants no later than 24 months after the publication date of this decision document. Appendix I lists the products containing pyridaben that are registered under the authority of the Pest Control Products Act.

Other Information

Any person may file a notice of objectingFootnote 3 regarding this decision on pyridaben within 60 days from the date of publication of this Re-evaluation Decision. For more information regarding the basis for objecting (which must be based on scientific grounds), please refer to the Pesticides section of Canada.ca (Request a Reconsideration of Decision) or contact the PMRA’s Pest Management Information Service.

Appendix I  Registered Pyridaben Products in Canada

Table 1  Registered Pyridaben Products in Canada as of 1 November 2018, excluding discontinued products or products with a submission for discontinuation
Registration Number Marketing Class Registrant Product Name Formulation Type Guarantee (% a.i.)
25133 Technical Nissan Chemical Industries Ltd. Pyridaben Technical Miticide/Insecticide Wettable powder 99.4
25134 Commercial Canyon Group, LLC Sanmite Miticide/Insecticide Wettable powder 75
25135 Commercial Canyon Group, LLC Nexter WP Miticide/Insecticide Wettable powder 75
25229 Commercial Plant Products Co. Ltd. Dyno-mite Miticide/Insectide Wettable Powder Formulation Wettable powder 75

Footnotes

Footnote 1

"Decision statement" as required by subsection 28(5) of the Pest Control Products Act.

Return to footnote 1 referrer

Footnote 2

"Consultation statement" as required by subsection 28(2) of the Pest Control Products Act.

Return to footnote 2 referrer

Footnote 3

As per subsection 35(1) of the Pest Control Products Act

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