Palmer amaranth, the aggressive and highly competitive pigweed species that U.S. farmers have been tussling with for almost 30 years, has been found in Ontario. Ontario Ministry of Agriculture, Food and Rural Affairs weed specialist Mike Cowbrough says DNA testing has confirmed that a plant found in a Wellington County field is palmer amaranth. He… Read More
Category: Weed control
Weed control in organic soybeans can be challenging but new technology is helping Brandon Jantzi and his family keep it clean at Janlan Farms near Baden, Ont. On this episode of The Sharp Edge, Jantzi and Maizex Seeds agronomist Henry Prinzen dig into the farm’s weed control strategy, which is designed to deliver high-yielding organic… Read More
Some herbicides aren’t very effective at controlling a weed like horsetail, but when you combine two poor-performing products, they can deliver a surprising level of control. In weed science terms, this ability of different active ingredients to team up and deliver a knockout blow is called herbicide synergy. On this episode of the RealAgriculture Soybean… Read More
Not without controversy, applying glyphosate prior to harvesting a crop can help with crop and weed dry-down. If done too early, while the plant is still moving nutrients up into the kernels, a pre-harvest pass can cause glyphosate residues in the resulting grain. That’s always a concern when residue is possible, but mounting pressure against… Read More
The University of Guelph’s weeds team were big winners at the Weed Science Society of America’s National Weed Science Contest in Union City, Tennessee this past week The 17-member team of graduate and undergraduate students have been preparing for months to test their weed ID, herbicide symptomology, sprayer calibration and farmer problem solving against students… Read More
What happens when a soil-applied herbicide application is followed by severe weather? For many herbicides it is business as usual, but in some cases a heavy rain can cause a typically safe product to injure the plant. On this episode of RealAgriculture’s Corn School, Ontario Ministry of Agriculture, Food and Rural Affairs weed specialist Mike… Read More
A new report suggests that the removal of glyphosate from the farming toolbox would have negative financial impacts for farmers and cost the environment, as well. The report, “A Future Without Glyphosate,” was authored by Aimpoint Research and funded by Bayer. In it, authors looked at the complexities of glyphosate’s impact on agriculture and outlined… Read More
Volunteer corn or canola aren’t just a plant out of place — both can eat yield and quality, depending on the following crop. Managing volunteers benefits from several layers of cultural practices, such as harvest settings and row spacing, and a well thought-out herbicide strategy. To delve into the challenge of volunteers, this episode of… Read More
When spraying post-emerge herbicides in conventional soybeans, getting good coverage is key to controlling weeds such as ragweed and pigweed. On this episode of RealAgriculture Soybean School, Syngenta Canada agronomic sales representative Brad Garlough explores how new sprayer technology can help growers get better herbicide coverage, optimize weed control, and defend the farm against herbicide… 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
As soybeans move through the early vegetative stages, it’s time for growers to tackle those broadleaf weeds and grasses that might have evaded soil-applied herbicides or emerged after burndown. On this episode of the RealAgriculture Soybean School, BASF agronomist Rob Miller and host Bernard Tobin talk strategy in a weedy field of 1st trifoliate soybeans… Read More
Canadian farmers will have access to select quantities of PowerCore Enlist Refuge Advanced corn for 2024. The new Corteva Agriscience seed product delivers integrated refuge plus weed and pest control in a single bag. It provides above-ground pest control and herbicide tolerance, as well as tolerance to 2,4-D choline, glyphosate, glufosinate and FOP herbicides. In… Read More
As edible bean planting wraps up across Ontario, grower focus shifts to controlling post-emergent weeds and grasses. When seed is planted to moisture, in warm soils, growers and agronomists will need to get out and scout to determine what competition, including small and actively growing weeds, the emerging crop will encounter. On this episode of… Read More
As planting of corn and soybeans nears the finish line across Ontario, farmers and agronomists are turning their attention to weed control. A stretch of dry weather that fuelled a two-week sprint of planting, with little time for spraying, means many growers are now checking the status of pre-plant applications and trying to determine next… 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