Resistance to glyphosate has not officially been confirmed in Canada fleabane populations in Western Canada, but the weed, sometimes called horseweed or marestail, should be on the radar when it comes to herbicide resistance on the Prairies, according to Manitoba Agriculture’s weed specialist. Canada fleabane that’s resistant to glyphosate and other chemistries is already established… Read More

It’s mid-May, but you almost wouldn’t know it by looking at seeding progress in Manitoba and parts of Saskatchewan. Super-dry Alberta and suddenly-warm Ontario bookend the seeding and planting progress and average things out (what does average really tell us, anyway?). On this episode of Wheat Pete’s Word, host Peter Johnson brings us up to… Read More

The annual Ontario field crop diagnostic days held at Ridgetown, Elora, and Winchester will again go virtual in 2021. The organizing committees of these three highly successful in-field education and learning events are again partnering with crop researchers and extension, along with support from RealAgriculture and a host of sponsors to bring you a series… Read More

It’s time for Day 3 of the virtual Ontario Diagnostic Days! This week, we’re joined by Dr. Peter Sikkema with the University of Guelph, and Mike Cowbrough, weed specialist with the Ontario Ministry of Agriculture, Food and Rural Affairs. This episode focuses on weed management, specifically on glyphosate resistant Canada fleabane and waterhemp, and the… Read More

From microwave ovens, to X-rays, and even potato chips, many important discoveries have been stumbled upon by accident. The same may to be true when it comes to weed control and the continuing fight to control glyphosate-resistant Canada fleabane. On this episode of RealAgriculture’s Soybean School, Mike Cowbrough, Ontario Ministry of Agriculture, Food and Rural… Read More

If you’ve ever adopted a new way of doing things after attending a field day or conference, do you let the researcher or extension staff know? Sometimes, research can be a rather thankless job, and many researchers don’t hear back on their work being applied on-farm. Peter “Wheat Pete” Johnson came across just such an… Read More

There’s a new tool available for growers in the fight against herbicide-resistant weeds, such as Canada fleabane. Corteva Agriscience has launched Elevore, a Group 4 herbicide option for pre-plant burndown of broadleaf weeds, including glyphosate-resistant Canada fleabane, in both field corn and soybeans. Last week at Canada’s Outdoor Farm Show, Dave Kloppenburg, Corteva’s Canadian category leader… Read More

Herbicide resistance is nothing new to Ontario farmers. It all started in 1973 when triazine-resistant lamb’s-quarters were found on a farm near Ripley, Ontario. Group 2 herbicide-resistant weeds were first documented in 1996. Fast forward to 2018, and we find that the province is now home to a host of glyphosate-resistant weeds including Canada fleabane, giant… Read More

 

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