GFM Network News


Mike Cowbrough is the weed management lead, field crops, with OMAFRA and co-curator of sprayers101.com. In the photo, Cowbrough shows his audience how mixing order can affect product compatibility in tank mixes.

Two more reasons to consider a jar test before tank mixing

It’s better to be safe than sorry when you combine multiple modes of action or include micronutrients in the tank

When tank mixing goes well, farmers can reduce the number of passes through their fields, saving equipment operating time and man-hours, reducing compaction and optimizing application timing. When tank mixing goes badly, however, the results can be disastrous. Because chemical companies won’t and, in fact, can’t test their products with every possible mixing option, making […] Read more

Figuring out all the angles on rotation can be a complex challenge for farmers.

Rotation, rotation, rotation are a farmer’s best friend in the field

Not rotating crops and chemistries might just be the opportunity crop pests were waiting for

[UPDATED: April 1, 2021] Rotation isn’t a new word, but applying it to all aspects of annual crop production might be a newer concept for western Canadian farmers looking to keep a step ahead of various crop pests, say specialists with Corteva Agriscience. A proper crop rotation, a proper variety rotation, a proper herbicide rotation, […] Read more


Illustration of the degeneration of dopaminergic neurons, a key stage of development of Parkinson’s disease. (Dr_Microbe/iStock/Getty Images)

Quebec to reduce onus for farm workers seeking workers’ comp for Parkinson’s

Amended rule would grant 'presumption' for pesticide exposure

Some Quebec farmers and farm workers with Parkinson’s disease may soon have an easier path to seek workers’ compensation — if they can show at least a certain amount of exposure to pesticides. Provincial Labour Minister Jean Boulet on Tuesday tabled an amendment to bill 59, draft legislation that includes updates to Quebec’s workplace health […] Read more

Tips for the safe use of crop protection products

Tips for the safe use of crop protection products

Q & A with an expert

Q: How do I use crop protection products safely? A: Agricultural field pesticides are valuable tools to help growers control weeds, certain insects and crop disease. It is imperative that pesticides be used safely to protect both the applicator and the local environment. Each pesticide will have details as to its safe use on the […] Read more



Monarch butterflies hibernating in Mexico on fir trees.

Glyphosate gets off the butterfly hook

An example of a blatant effort to find a pesticide scapegoat

When I lived in Ontario in the early seventies, monarch butterflies were a common sight in the Guelph area, especially in late September. I would be coaching rugby on the University of Guelph rugby field late in the day and I would see hundreds of monarch butterflies heading south over the playing field at a […] Read more


Using a product on a crop that is not registered could cause major trade consequences and the producer could be held responsible.

What you need to know about maximum residue limits

Q & A with an expert

Q: Maximum residue limits: what are they and why are they important?  A: In the agricultural industry, we hear the term maximum residue limit (MRL) referred to on numerous occasions. The term refers to the maximum amount of pesticide residue expected to remain in food products when a crop protection product is used according to […] Read more

(File photo by Lisa Guenther)

Corteva posts weak revenue, disappointing outlook

Reuters — Corteva Inc. on Wednesday missed analysts’ expectations for second-quarter revenue and its reinstated full-year forecast came in below estimates, sending the seed and pesticide producer’s shares down as much as nine per cent in extended trade. Good weather and higher planted area shifted corn volumes in North America to the first quarter, while […] Read more


Adjuvants help keep pesticide ingredients suspended in spray water and improve adherence to what you are targeting.

What to do – and what not to do – when using adjuvants

How to get the most out of your crop protection products

Most pesticide labels include a section indicating what type of adjuvants will help you get the most out of your crop protection applications. These labels feature language such as “required,” “recommended” or “can be used” to help you understand which adjuvants are essential to your mix and which ones are optional. But it’s not as […] Read more

How to maximize the efficacy of your crop protection products

How to maximize the efficacy of your crop protection products

For starters, ensure you have adequate water quality

No farmers want to unintentionally alter the efficacy of their crop protection products because of water quality pumped into the tank. However, farmers may do just that if they do not have their farm water source tested every year and take the appropriate actions based on the results of those tests. There are several factors […] Read more