GFM Network News


Drought stress symptoms in corn leaves where no soil-applied herbicides had been applied and weed control was done with a late post-emergence application.

Pest Patrol: Don’t be cheap with weed control

#PestPatrol with Mike Cowbrough, OMAFRA

“Weed control is an investment into the current and future crops on every field.” The above quote was parting advice from Norfolk and Oxford County farmer Ann Vermeersch at the 2019 FarmSmart Conference in Guelph. In front of 80 farmers and agronomists, I moderated a session with Vermeersch and Steph Kowalski, a certified crop advisor […] Read more

Canada fleabane.

New in herbicides for 2019

The latest products on the market reflect a changing mindset in weed control

As winter gives way to spring, growers prepare for another season of weed management challenges. To help, here are new products for 2019, plus some released too late last spring for full distribution. Bayer Infinity FX Newly registered for 2019, Infinity FX is a combination of Infinity (bromoxynil + pyrasulfotole) and fluroxypyr, providing three active […] Read more


Applicators need relevant and timely information regarding chemical applications for the best performance.

Better labels

This new initiative aims to create crop protection labels producers will actually want to use to make spraying decisions

It’s a familiar spot to find yourself in. You want to spray a new product. Or maybe you want to tank mix two chemistries that you’ve never sprayed together before. The crop is ready, the sprayer is set, but now you see there are label questions about specific rates, ground speeds, buffer zones, clean-out procedures […] Read more

Growers in the U.S. are dealing with the spread of Palmer amaranth, which overcame glyphosate as far back as 2010.

Better herbicide tolerance technologies are on the way

Better technologies are coming, but we’ll need patience and shrewd management until they arrive

Count off the many challenges facing a farmer in any growing season and outside of weather conditions, the biggest impediment has to be weed management, particularly as it relates to herbicide tolerance. In spite of the importance of varietal or hybrid selection and fertility, and the potential for yield losses from insect pests and diseases, […] Read more


The U.S. ‘No. 1 weed problem’ heads north

Other weeds are higher priority for now, but be on the lookout for Palmer amaranth

It can grow two to three inches per day and reach eight feet tall. Each plant can produce more than a million seeds that can emerge right through the growing season. It has reduced yield up to 91 per cent in corn and 79 per cent in soybeans. It’s resistant to glyphosate and multiple other […] Read more



All of the gains farmers have made in no-till are likely in jeopardy if their access to glyphosate is eliminated.

A new attack on glyphosate

Earlier this fall, some food companies were calling for a ban on glyphosate

Already by October 1, 2018, over 200 products sold under 17 different brand names were displaying the Glyphosate Residue Free symbol on their packaging. And another 50 brands representing hundreds more products are in the process of securing Glyphosate Residue Free certification. Farmers can expect increasing backlash over their use of glyphosate because of this […] Read more

Cupping of soybean leaves is a clearly visible symptom of off-target movement of dicamba that resulted from inversion.

Soybeans, dicamba and you

New challenges are arising with new herbicide-resistant technologies and product blends

When new transgenic and herbicide-tolerant technologies arrive, they come with learning curves, some steeper than others. For Bt corn hybrids, for example, the curve was relatively flat, even if there had to be some serious thinking that about refuge planting. And in glyphosate- and glufosinate-tolerant soybean varieties, there may have been initial concerns about having […] Read more


Canada fleabane seedlings that will be treated with glycine and glyphosate combinations in a growth chamber environment.

Pest Patrol: The continuing fight against glyphosate-resistant Canada fleabane

#PestPatrol with Mike Cowbrough, OMAFRA

Glyphosate-resistant Canada fleabane is found in 30 counties across Ontario and can cause yield losses exceeding 50 per cent in both corn and soybeans. Since there are only a few other herbicides that are effective at controlling it, this glyphosate-resistant weed has been one of the most troublesome weeds in Ontario. So, what if you […] Read more

Trying to overcome Canada fleabane via breeding is the target of many researchers and breeders.

Better herbicide tolerance

Better technologies are coming, but we’ll need patience and shrewd management until they arrive

Count off the many challenges facing a farmer in any growing season and outside of weather conditions, the biggest impediment has to be weed management, particularly as it relates to herbicide tolerance. In spite of the importance of varietal or hybrid selection and fertility, and the potential for yield losses from insect pests and diseases, […] Read more