The Canadian Agricultural Hall of Fame has announced the names of six agricultural ambassadors who will join the ranks as the organization’s 2025 inductees. John Anderson, Dori Gingera-Beauchemin, Gaétan Desroches, Joe Hudson, Dennis Laycraft and Dr. Peter Sikkema will be formally inducted on Saturday, November 8 at a ceremony in Victoria, British Columbia. “Every year… Read More
Tag: Dr. Peter Sikkema
How does weather impact the type of weeds farmers see in their fields each spring? ‘Every year is different’ is a phrase that’s often applied to agriculture and warm versus cool spring conditions can certainly impact weed pressure and weed control challenges, says recently retired University of Guelph weed scientist Dr. Peter Sikkema. At a Ridgetown… Read More
After a stretch of cool, wet weather many corn fields across Ontario have turned yellow, and growers are asking whether it’s safe to spray the stressed plants. Retired University of Guelph weed scientist Dr. Peter Sikkema says the reason that corn is tolerant to many herbicides is its ability to rapidly metabolize those herbicides. However,… Read More
When it comes to weed control, should growers plant soybeans later in fields where high levels of waterhemp are anticipated? Over the last decade, soybean planting dates have moved up considerably as new research has shown the oilseed can handle cooler soils and deliver more bushels when planted earlier. But during that same period, the… Read More
There are plenty of weedy corn fields across Ontario as a planting season with weather-induced stops and starts has some growers struggling to get crop in the ground and also stay ahead of the weeds. Getting the jump on those weeds, especially in fields relying on post-emergent herbicide programs is critical, says University of Guelph… Read More
Glyphosate resistance has been confirmed in lamb’s-quarters in Quebec. The finding, which comes from the CÉROM grain research centre, is the first confirmation of glyphosate resistance in the annual weed anywhere in the world. University of Guelph research scientist Dr. Peter Sikkema shared the news with those attending the Ag Business Breakfast Meeting at Ridgetown,… Read More
Weeds can cause up to 58 per cent yield loss in edible beans compared to 50 per cent in corn and 35 in soybeans.That’s just one brick in a wall of weed control insights University of Guelph weed science researcher Dr. Peter Sikkema has accumulated over a 30-year career that includes induction into the Ontario… Read More
Common ragweed’s ability to resist the control efforts of different herbicide groups continues to grow across Ontario. Last winter, University of Guelph weed scientist Dr. Peter Sikkema confirmed the presence of Group 14 resistance in common ragweed, making the broadleaf pest resistant to enzyme inhibitors, including branded weed control products such as Reflex and Blazer,… Read More
A widespread rain sweeping across Ontario this past weekend provided plenty of moisture to activate soil-applied, pre-plant herbicides in crop fields throughout the province. With the timely rain, many growers are now asking: after activation do these herbicides have the capability to ‘reach back’ and control already-emerged weeds and grasses such as foxtail? University of… Read More
Glyphosate-resistant Canada fleabane was first confirmed in Ontario in 2010. Fast-forward thirteen years and the weed now has developed resistance to multiple herbicide groups and can be found in Essex County, bordering Michigan, all the way east to Glengarry County, adjacent to the Quebec border. University of Guelph weed scientist Dr. Peter Sikkema has been… Read More