Sep. 19, 2019
Under the authority of the Pest Control Products Act, Health Canada's Pest Management Regulatory Agency (PMRA) has determined that continued registration of products containing ferrous sulfate is acceptable. Following a scientific review of the available information, Health Canada has determined that the health and environmental risks and the value of ferrous sulfate continue to be acceptable provided that the label updates, as listed in Appendix II, are implemented.
Iron present as ferrous sulfate monohydrate or ferrous sulfate heptahydrate (hereafter referred to as ferrous sulfate) is an herbicide used to control the growth of moss in turf and lawns.
This document presents the final regulatory decision for the re-evaluation of ferrous sulfate. To comply with this decision, the required label amendments must be implemented on all product labels sold by registrants no later than 24 months after the publication date of this document. Registrants of products containing ferrous sulfate will be informed of the specific requirements affecting their product registration(s) and of the regulatory options available to them.
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