Each waterhemp plant can produce one million seeds, with some producing up to five million.

Glyphosate resistant waterhemp moving across Ontario

With its method of pollination and resistance abilities, the weed is becoming harder to control

Glyphosate-resistant waterhemp is now present in seven counties across Ontario. Huron, Wentworth and Haldimand are the three most recent counties where it was found, in addition to the previous Essex, Lambton, Chatham-Kent and Middlesex counties. Seeds were harvested harvested in fields in these counties last fall, planted in a greenhouse to overwinter and tested once […] Read more

Glyphosate is used as a burn down, but also in glyphosate-resistant crops.

Canada, France head in different directions on glyphosate

Health Canada says it stands by its earlier re-evaluation of the herbicide, finding it safe for labelled use

The Canadian federal health department says it continues to have no concerns about the safety of the glyphosate herbicide after it reviewed eight notices of objection received after it released its final re-evaluation decision on glyphosate in April 2017. The objections were filed with Health Canada in June and July that year by individuals and […] Read more

Peter Sikkema told edible bean growers that 2,4-D is a glyphosate-resistant Canada fleabane control option, if the treatment is registered.

Edible bean growers could get more weed control options

Ridgetown College research shows that older chemistries can help control glyphosate-resistant weeds in strip till

When the Weed Society of America challenged its members to evaluate weed pressure on field crops, Peter Sikkema found that in Ontario edible beans were most challenged by weed pressure. “The crop I work on that is most affected by weed interference is dry beans,” the professor at University of Guelph’s Ridgetown campus said at […] Read more

Over 30 years, the active ingredient volume of herbicide applied on crops has declined in Ontario, mostly because glyphosate 
is applied at lower rates than the herbicides it replaces.

Glyphosate drives long-term herbicide changes

Ontario keeps track of detailed herbicide use every five years, which shows how the use of active ingredient has declined

A study of glyphosate use in Ontario shows the herbicide has created significant change in crop management. It shows that while corn and soybean acreage and yield have increased in the province since 1983, the impact of herbicide use per acre has declined, in large part because glyphosate has displaced other herbicide chemistries. Why it […] Read more

Kris McNaughton, right, is a research associate at the University of Guelph’s Ridgetown Campus.

Cover crops can be tricky to kill

Cover crops can be important tools to improve soils, but there’s no single control solution

Cover crops can do a lot for the soil, but keeping them from becoming covering weeds requires the right herbicides applied at the right rate — to kill them at the right time. What cover crop is used, too, should be appropriate for the job the farmer wants to accomplish. Why it matters: Cover crops […] Read more


Remember to clean the outside of the tanks and all equipment for residue.

Taking the dicamba cleanse

Experts remind growers to take an active approach to sprayer cleaning, and of the importance of ammonia in removing dicamba residues

The sensitivity of soybeans and other plants to dicamba — a volatile auxin-based herbicide employed in various forms since the 1960s — is extreme. Even trace amounts can cause significant damage to susceptible crops, meaning proper equipment cleaning is critical to avoiding unintended problems. Why it matters: Use of the herbicide will increase with the […] Read more


FMC deal for DuPont assets wins clearances

The chemical company set to take up a significant chunk of DuPont’s crop protection work in Canada has picked up the last of the regulatory clearances it needs to close the deal. Philadelphia-based FMC Corp. announced Thursday it received the final approval needed, from the Competition Commission of India, to close the deal the company […] Read more


Herbicide supplier Albaugh said to be exploring sale

Reuters — Albaugh LLC is exploring a sale that could value the privately held U.S. producer of agricultural crop protection chemicals at more than US$1.5 billion, including debt, according to people familiar with the matter. Albaugh, controlled by its 67-year-old founder Dennis Albaugh, is working with investment bank JPMorgan Chase and Co. to discuss a […] Read more