GFM Network News


Figure 1: This unsprayed control treatment consists mainly of common ragweed but with green foxtail, common lamb’s-quarters, witchgrass, crabgrass and red-root and green pigweed.

Pest Patrol: Weed control in identity-preserved, non-GMO soybeans

#PestPatrol with Mike Cowbrough, OMAFRA

A decade of public research trials evaluating weed control in non-GMO soybeans at the University of Guelph has demonstrated that the key to success is to start with a soil-applied herbicide program that has three or more different modes of action. In Ontario, there are a number of common weeds (e.g. common ragweed, lamb’s-quarters, foxtail […] Read more

Brazilian court overturns ban on glyphosate

Brasilia | Reuters — A Brazilian court on Monday overturned an injunction banning products containing the herbicide glyphosate, knocking down a previous ruling that had been set to disrupt the soy planting season set to begin this month. A Brazilian judge ruled last month to halt the registration of new glyphosate-based products in the country […] Read more


Brazil judge suspends use of glyphosate herbicide

Sao Paulo | Reuters – A Brazilian judge has suspended the use of products containing the agrochemical glyphosate, a herbicide widely employed for soybeans and other crops in the country. A federal judge in Brasilia ruled on Friday that new products containing the chemical could not be registered in the country and existing registrations would […] Read more

UPL to buy crop chem firm Arysta

Indian chemical manufacturer UPL has raised the financial backing for an all-cash deal to become what’s expected to be the world’s fifth biggest crop chemical firm. UPL on July 20 announced it will pay $4.2 billion to buy 100 per cent of Arysta LifeScience — the maker of Everest and Inferno herbicides, among other products […] Read more


Figure 1. A robotic weeder being tested as part of an engineering design project at the University of Guelph.

Pest Patrol: New herbicide names may not mean new chemistry

#PestPatrol with Mike Cowbrough, OMAFRA

Q: Do I have new opportunities in weed control in 2018? A: This is the question I’ve been asked a lot this past winter meeting season, and one I always struggle to answer. There are some legitimately promising concepts being tested such as robotic weeders (Figure 1 at top) and weed seed destruction tools, but […] Read more

More than the cost of herbicide, growers need to consider how the cost of yield losses will affect future cropping plans.

Rotation refresher

More than crops, more than herbicides, it comes down to planning for success — with everything

The past two to three years have seen some encouraging signs of change for the better across Eastern Canada. Commodity prices are cyclically low yet corn, soybean and wheat yields have been trending upwards. There’s renewed interest in cover crops, and more growers have a renewed appreciation for soil health too, including a keener sense […] Read more


Germany plans to toughen conditions for insecticide use

Berlin | Reuters — Germany plans to make it more difficult for farmers to use crop insecticides in a bid to preserve biodiversity, an environment ministry document showed. “Insect biomass has fallen by more than 75 per cent in the last 27 years in Germany,” according to the paper seen by Reuters on Wednesday, saying […] Read more

Rotary hoe and inter-row cultivation reduced weed biomass by 75 to 85 per cent in field pea and lentil, as seen in this photo of lentils after inter-row cultivation. When seeding rate was boosted, weed biomass in lentils was reduced an extra 16 per cent.

If you can’t beat ’em, clip ’em

New methods of mechanical weed control show promise, but don’t expect a yield increase the first year

With the high and growing percentage of Prairie cropland infested with herbicide-resistant weeds, researchers are turning their attention back to mechanical control, but that doesn’t necessarily mean tillage. The Alberta Wheat Commission and Saskatchewan Pulse Growers are partnering on a three-year research project at the University of Saskatchewan which is evaluating in-crop weed clipping as […] Read more


Hemp dogbane in Roundup Ready soybean prior to the spot application of glyphosate.

PHOTOS: Pest Patrol: Dealing with hemp dogbane

#PestPatrol with Mike Cowbrough, OMAFRA

Q: I’ve been battling hemp dogbane in my soybean fields. It produces a milky juice that can stain my beans. What can I do to knock back the top growth so it won’t affect crop quality? A: It’s good that your expectations are for top growth control of hemp dogbane (see figure 1), since it’s […] Read more

Tom Wolf says “stronger, faster, higher” may not be the right approach for sprayers to provide maximum efficiency.

Agrimetrix takes aim at exploding sprayer myths

Farmers today need to spray several times a year, and two former AAFC researchers have formed a company to help them get the product to the right place at the right time

If Tom Wolf is the face of agricultural spraying in Western Canada, then Brian Caldwell is the hands. The two co-owners of Agrimetrix, an agricultural spray research and training company based in Saskatoon, share an overlapping skillset, but they have carved distinctive individual niches. Wolf spends much of his time talking about spraying in a […] Read more