If malathion is in your shed, it may be time to revisit your inventory. According to a recent advisory issued by Health Canada (http://healthycanadians.gc.ca/recall-alert-rappel-avis/hc-sc/2017/63150a-eng.php), Malathion products purchased prior to June 2016 should not be used. This advisory applies to all products including agricultural and mosquito control products containing malathion. The advisory was issued because over an extended period of time, malathion can convert into a toxic metabolite called isomalathion. This conversion can be faster if label directions for storage are not followed properly. If you are purchasing malathion products in 2017, be sure to check expiry date on the packaging.
What to do with old/obsolete inventory of malathion products?
- Malathion products older than one year cannot be used and will need to be disposed.
- If agricultural malathion products purchased prior to June 2016 are being used, users must test the product prior to use. Malathion products must be tested at an accredited laboratory and meet the requirements outlined in Health Canada Advisory. Products over a year in storage must be disposed.
- For more information on disposal of old/obsolete products, https://www.gov.mb.ca/sd/eal/pesticide/info_pestwaste.pdf
Steps to consider for safe use of pesticide products
- Before using any product, including malathion products, confirm the registration status and class of the pesticide product on Pest Management Regulatory Agency’s (PMRA) website or mobile application.
- Most restricted class pesticides require a license for purchase and use. Appropriate license must be secured before using a restricted pesticide product. Farmer exemption does not apply for restricted pesticide products.
- Verify that the label recommended storage conditions are met.
- Follow directions on a pesticide product label.
- Obsolete products and empty containers must be disposed properly
Additional questions can be directed to Health Canada (613) 957-2991, 1866-225-0709