Glyphosate resistance has been confirmed in lamb farms in Quebec.
This discovery from the CÉROM Cereals Research Center is the world’s first confirmation of glyphosate resistance in annual weeds. Dr. Peter Sikkema, a research scientist at the University of Guelph, shared the news with attendees at the Agribusiness Breakfast in Ridgetown, Ont., on Tuesday.
CÉROM reports that resistance has been found in a lamb pen population in the Montérégie region of Quebec. Resistance was detected by spraying weeds in a greenhouse under controlled conditions. It is the sixth weed species to be found to be resistant to glyphosate in Quebec since 2017. Resistance has also been confirmed by Agriculture and Agri-Food Canada Researcher Martin Laforest.
Sikkema has not yet seen the research report, but called the news “quite important” because CÉROM chose to make it public.
Sikkema reports that he has seen some evidence of glyphosate resistance in Ontario since 2010. However, he notes that he did not report the resistance levels he observed because the resistance coefficient of the Ontario biotype was so low that it could have been easily killed and killed. . controlled the field.
Lambsquarter is considered one of the most competitive annual broadleaf weeds in Ontario. According to the Ontario Ministry of Agriculture, Food and Rural Affairs: Agronomic guide to field cropsOne lamb’s quarter plant per square meter can result in yield losses of 12 percent for corn and 13 percent for soybeans. If there are five plants per square meter, losses can increase to 35 percent for corn and 38 percent for soybeans. cent (soybean).
“I think the biggest culprit for the weed problem is flea springs in Canada. But lamb meat stores are all over the province. So I think this is a big deal,” Sikkema said. To tell.
