A sprayer is parked on the side of a gravel road being loaded by a tanker truck carrying a pesticide tank mix.

Warding off dicamba spray drift

Some experts say dicamba’s drift risk isn’t worth it, while others say it’s a matter of proper management

When it comes to farm weed control, some spraying experts say dicamba’s drift risk isn’t worth it, others say it’s a matter of proper management, smart farmer decisions and chemical product choice.


Environmental activists have objected to dicamba herbicides because they are known to drift away and damage other crops that are not resistant. However, farm groups had warned that the court ruling, if fully enforced by the federal government, could financially hurt growers who will plant their next crops in the spring. | File photo

U.S. OKs existing dicamba supplies

CHICAGO, Ill. (Reuters) — The U.S. Environmental Protection Agency says farmers can use some existing supplies of herbicides based on the chemical dicamba, despite a recent federal court ruling that halted their use. The decision is a win for farmers who planned to use dicamba products sold by Bayer, BASF and Syngenta on genetically modified […] Read more

Earlier this week, a federal court judge "vacated" the U.S. registrations of several dicamba-based herbicides, saying the Environmental Protection Agency "violated procedures mandating public input," Reuters reported. | File photo

U.S. dicamba ruling will not touch Canada: Bayer

Thousands of American farmers who have already bought the herbicide now in a bind after court bans over-the-top use

WINNIPEG — An Arizona court decision that essentially prohibits American farmers from using dicamba for over-the-top spraying on soybeans and cotton will not stop Canadian growers from using the herbicide this year, says Bayer Crop Science Canada. Earlier this week, a federal court judge “vacated” the U.S. registrations of several dicamba-based herbicides, saying the Environmental […] Read more

Some farm groups and agribusinesses said the ruling, if enforced by the federal government, risks hurting farmers financially and reducing options for fighting weeds that are increasingly developing resistance to a limited number of herbicides. | File photo

U.S. court cancels dicamba approval

CHICAGO, Ill. (Reuters) — A U.S. court has nullified the government’s latest approvals of certain agricultural herbicides sold by Bayer, BASF and Syngenta, fueling uncertainty among farmers who spray the products on soybeans and cotton genetically modified to resist them. Environmental activists cheered the court for halting use of the dicamba-based herbicides, which are known […] Read more


A coarse sparyer nozzle reduces the number of fines, along with higher pressures and appropriate application speeds. The dicamba formulation will reduce non-target plant damage, but application systems and strategies are critical to making the best use of the new version for the technology.  |  Michael Raine photo

How many incidents of dicamba drift?

There were 18 reported cases of dicamba drift in Canada in 2016, based on data from Bayer. By 2019, that number dropped to nine. “The number of known off-target incidences has continued to decline steadily since 2016,” Bayer Canada said in an email. Related story: Dicamba drift not a major problem in Canada “In that […] Read more

In Manitoba, which has more than one million acres of soybeans, the number of cases of dicamba drift has been minimal. | File photo

Dicamba drift not a major problem in Canada

Dicamba drift may be a controversial issue in the United States, but it hasn’t been a significant problem in Manitoba, says a weed expert in the province. In Manitoba, which has more than one million acres of soybeans, the number of cases of dicamba drift has been minimal. Related story: How many incidents of dicamba […] Read more