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

Planting is just around the corner, and if you’re in full-on crop planning mode you’re likely curious about what’s new, what’s old, what’s repackaged, what’s the best bet for herbicides in 2018. Lucky for you, Ontario Ministry of Agriculture, Food and Rural Affairs weed management specialist Mike Cowbrough faces an avalanche of these questions every… 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? In this episode of the Soybean School, OMAFRA weed control specialist Mike Cowbrough… Read More