Regulatory Directive: Pesticides for Aquatic Applications

28 October 1993
Cat. No.: N/A

The purpose of this Regulatory Directive is to advise registrants of the product class designation of pesticides to be used on aquatic sites.

This Regulatory Directive replaces Trade Memorandum T-1-205 dated August 31, 1981.

Pursuant to Section 27 (2) (b) of the Pest Control Product Regulations, all pesticides are required to show the class designation on the label.

Aquatic pesticides are those products which are used on aquatic sites to control noxious weeds, trash fish, certain biting flies and other aquatic pests, but do not include products used in swimming pools or industrial water. Aquatic pesticides are used to maintain and improve the usefulness and enjoyment of agricultural and recreational areas and to ensure the proper functioning of irrigation and drainage systems.

Directions for use of aquatic pesticides must be strictly followed. In addition, consideration must be given to regional conditions involving water courses, wildlife populations, human habitations and non-target organisms generally, in order to avoid adverse effects from poor operating practices.

An aquatic pesticide use should be assigned to one of the following two class designations, based on the nature of the application site:

Commercial Class

Aquatic pesticides used only in water bodies wholly confined to the property of the user where there is no outflow beyond the property limits. Such sites as farm ponds, fish ponds, fire ponds and dugouts will be assigned to the Commercial class and the following limitations must appear on the product label:

"For use in water wholly confined to the property of the user and where there is no outflow beyond the property limits."

Restricted Class

Products for the control of aquatic pests in all other aquatic situations such as rivers, lakes and irrigation canals, will be assigned to the Restricted class. The product label bearing directions for use in these aquatic locations will be accompanied by the following Nature of Restriction statement:

"This product is to be used only in the manner authorized; consult provincial pesticide regulatory authorities about use permits that may be required."

If you have any questions regarding this document, please contact:

Pest Management Regulatory Agency
Health Canada
2250 Riverside Drive
A.L. 6606D1
Ottawa, Ontario K1A 0K9
Information Service: 1-800-267-6315 (In Canada only)

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