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

Crop researchers and agronomists are encouraging Ontario farmers to continue to follow established stewardship recommendations when using dicamba herbicides. Last week, a U.S. court decision to cancel the registration of in-crop use of dicamba herbicides left regulators, product manufacturers, herbicide applicators and farmers scrambling to understand the ramifications of the ruling and the implications for… Read More

Cover crops, tillage and herbicides —they’re all tools growers can use to build an effective, integrated approach to controlling troublesome Canada fleabane. On this episode of RealAgriculture’s Soybean School, Ontario Ministry of Agriculture, Food and Rural Affairs weed specialist Mike Cowbrough looks at the role tillage can play in controlling the weed. He notes mounting… 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

On today’s Family Day/Louis Riel Day-holiday episode of the show: Edible weeds, poisonous weeds, and the ever-evolving challenge of effective extension, with Mike Cowbrough, weed specialist for field crops with the Ontario Ministry of Agriculture, Food and Rural Affairs, in this episode of Agronomy Geeks. Benefits to exercising outside even through the cold, plus tips… Read More

If you’re looking for a little snack and happen to be standing in a patch of weeds, it’s entirely possible the plants at your feet are edible — maybe even tasty. If you’re looking for help on which one to eat, you might be surprised to learn that Ontario’s weed specialist can tell you not… Read More

Retiring alfalfa fields used to be a simple process. Conventional tillage farmers would just drop the mouldboard plow in the fall, while those under a minimum tillage system would rely on a glyphosate burndown before planting a new crop the following spring. With the introduction of glyphosate tolerant (GT) alfalfa, however, glyphosate is no longer… Read More

If you have weeds pop up prior to planting soybeans you can control them with a burndown herbicide application. But what happens when rain and wind conspire to prevent you from applying a burndown and you have to control weeds after planting? That’s the situation many Ontario growers are facing in 2019 as the wet… Read More

On Monday’s show, the week’s host Lyndsey Smith, takes on this Agronomy Monday with a flurry of topics, including: Mike Cowbrough, provincial weed specialist with the Ontario Ministry of Agriculture, Food and Rural Affairs, talking about how to get control on larger-than-ideal weeds ahead of planting; Peter “Wheat Pete” Johnson, on winter wheat decisions, including… Read More

Can Ontario winter wheat growers mix ammonium thiosulphate (ATS) with herbicides and fungicides to address sulphur deficiency symptoms or should they apply it separately with streamer nozzles? That’s a question Mike Cowbrough and Joanna Follings wanted to answer with 2018 research plots. The Ontario Ministry of Agriculture, Food and Rural Affairs weed specialist and cereals… Read More

There are a number of reasons why herbicides sometimes fail to control weeds. Perhaps surprisingly, one of the easier things to rule out is whether the weed is herbicide resistant. Ontario Ministry of Agriculture, Food and Rural Affairs weed specialist Mike Cowbrough says many universities across Canada conduct testing for herbicide resistance, but growers have… Read More

Ontario ministry of agriculture weed specialist Mike Cowbrough says it’s easy to pick on a herbicide when it doesn’t meet your weed control expectations. Unfortunately, he says, most growers don’t often have an opportunity to compare herbicide programs in their own field using check strips or unsprayed areas to test performance. But Cowbrough does have… Read More

 

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