Changing course, Health Canada finds neonicotinoid pesticides ‘not a threat’ to aquatic insects

Credit: Getty Images
Credit: Getty Images

In 2018, Health Canada proposed to phase out all agricultural uses of thiamethoxam, a Syngenta product, and clothianidin, a Bayer insecticide. 

Neonics, as they are known, are widely used in Canadian agriculture. They are applied as a seed treatment to most of the corn and canola seeds in Canada, and a portion of the soybean seeds. They are also applied to fruit, vegetables and berry crops.

In the summer of 2018, department scientists said the insecticides were accumulating in ponds, creeks and other water bodies near agricultural land. The concentrations of neonics were harmful to midges and mayflies and therefore posed a threat to the birds and other animals that rely on the insects for food.


Follow the latest news and policy debates on agricultural biotech and biomedicine? Subscribe to our newsletter.

The Canadian Canola Growers Association and Alberta Agriculture collected and analyzed water samples near canola fields in Western Canada to test the ponds, creeks and water bodies for the presence of neonics.

Both groups found tiny concentrations of neonics at levels below the threshold of risk to aquatic insects.

[Health Canada’s Pest Management Regulatory Agency] incorporated the results into its decision.


“Based on these data it was determined that the risks to aquatic invertebrates resulting from chronic exposure following application of clothianidin under certain currently registered conditions are acceptable.”

Health Canada scientists came to the same conclusion about thiamethoxam.

Read the original post

Related article:  Foods made from gene-edited wheat may contain lower levels of potentially carcinogenic chemical acrylamide
Outbreak Daily Digest
Biotech Facts & Fallacies
GLP Podcasts
Infographic: Deaths from COVID-19 are far higher than reported estimates

Infographic: Deaths from COVID-19 are far higher than reported estimates

More than 2.8 million people have lost their lives due to the pandemic, according to a Wall Street Journal analysis ...
News on human & agricultural genetics and biotechnology delivered to your inbox.
glp menu logo outlined

Newsletter Subscription

Optional. Mail on special occasions.
Send this to a friend