Weeds are growing resistant to the herbicides already on the market, and agribusiness companies like Bayer are in a desperate search for new modes of action to help farmers kill them.
Tag Archives herbicide resistance
Bayer looks to AI to combat herbicide resistance faster
Bayer's Icafolin will be its first new mode of action herbicide in some 30 years when it launches in 2028
Crop-killing weeds advance across US farmland as chemicals lose effectiveness
Losing battle with weeds adds pressures to farmers already stressed by inflation, extreme weather
Crop-killing weeds such as kochia are advancing across the U.S. northern plains and Midwest, in the latest sign that weeds are developing resistance to chemicals faster than companies including Bayer BAYGn.DE and Corteva CTVA.N can develop new ones to fight them.
Palmer amaranth pops back up in Ontario
Weed infamous in U.S. for multiple herbicide resistances
A single plant that showed up this summer on the edge of a southwestern Ontario cornfield is cause for concern among Canadian farmers, weed specialists warn. Writing Monday in the ag ministry’s Field Crop News, Ontario provincial weed management specialist Mike Cowbrough said the plant in question, found in Wellington County, is confirmed as palmer […] Read more
At Ag in Motion: Herbicide resistance fight needs integrated seed management
'Those seedlings we don’t manage to kill (are) probably the most herbicide-resistant'
Harvest weed-seed control takes aim at reducing herbicide-resistant weeds that western Canadian farmers find more and more every year. At the Ag in Motion outdoor farm show this week, field residue management manufacturer Redekop won the Innovations Award for Environmental Sustainability for its harvest Seed Control Unit, which destroys more than 95 per cent of […] Read more
At Ag in Motion: Harvest weed control still in the mix
'You’re not going to spray your way out of this'
It’s a relatively new solution to the age-old problem of trying to get rid of weeds without broadcasting the seed or using increasingly less effective herbicides — mechanical separation and pulverization of weed seed. Harvest weed seed control might not be a golden bullet to tackle glyphosate-, fluroxypyr- and dicamba-resistant weeds, but according to Agriculture […] Read more
Group 27 herbicide resistance arrives in Canada
Mesotrione-resistant waterhemp confirmed in Quebec
A persistent and fiercely competitive weed that has developed resistance to several herbicide groups since its arrival in Canada is now the first in the country to fight off a Group 27 product. Quebec’s Reseau d’avertissement phytosanitaire (RAP) last Friday reported a patch of waterhemp with resistance to mesotrione herbicide in the Haut-Richelieu municipality, in […] Read more
Minnesota probes Palmer amaranth’s sudden appearance
Chicago | Reuters — Minnesota has launched an investigation to find the source of seed mixes contaminated with weed seeds after the aggressive, herbicide-resistant Palmer amaranth weed was found on 30 areas planted in a federal conservation program. The weed grows very fast, reaching up to eight feet in height and can hold back commercial […] Read more
EPA approves Monsanto’s dicamba weed killer
U.S. seeds and agrochemicals maker Monsanto Co. has secured approval from the U.S. Environmental Protection Agency for a new dicamba-based weed killer designed for its next generation biotech soy and cotton varieties, the company said on Wednesday. While approval had been expected, it is seen as a major step forward for the company’s newest herbicide […] Read more
No time like now to scout for resistance: CCC
Grain and oilseed growers making weekend plans are advised that herbicide-resistant weeds have way fewer places to hide right now. Any weeds that lived through pre-seeding burnoff or post-emergent spraying — where other weeds have clearly died — are best caught early, the Canola Council of Canada said in a release Friday. “It takes 14-21 […] Read more
U.S. EPA to require weed-resistance restrictions on glyphosate
Reuters — U.S. regulators will put new restrictions on the world’s most widely used herbicide to help address the rapid expansion of weeds resistant to the chemical, Reuters has learned. The U.S. Environmental Protection Agency (EPA) confirmed it will require a weed resistance management plan for glyphosate, the key ingredient in Monsanto’s immensely popular Roundup […] Read more
