GFM Network News


Management interference flagged in Environmental Protection Agency’s dicamba decision

Management interference flagged in Environmental Protection Agency’s dicamba decision

Office of inspector general says decision ran counter to EPA’s Scientific Integrity Policy

Three senior United States Environmental Protection Agency (EPA) managers altered scientific documents to support the EPA’s decision to extend the registration of the herbicide dicamba in 2018, contrary to EPA’s Scientific Integrity Policy. That’s the conclusion of the EPA’s office of inspector general (OIG) in its report released May 24. The EPA’s decision to extend

Soybean fields are inspected in a University of Wisconsin research trial on dicamba drift at Arlington, Wisc. on Aug. 2, 2018. (File photo: Reuters/Tom Polansek)

Bayer, Corteva in ‘two-dog battle’ over U.S. soy market

Companies' GM soybeans jockey for market share

Chicago | Reuters — Bayer is launching a new genetically modified soybean in the United States, striking back against rival Corteva in a bid to retain its dominant position supplying seeds to the $40 billion U.S. soy industry. Billions of dollars are on the table for companies producing a growing variety of seeds for soybeans,


(Sakakawea7/iStock/Getty Images)

U.S. EPA approves XtendiMax use for five years

Court ruling had blocked dicamba sales

Chicago | Reuters — The U.S. Environmental Protection Agency will allow farmers for the next five years to spray crops with a Bayer herbicide whose sales were blocked by a U.S. appeals court in June, EPA administrator Andrew Wheeler said Tuesday. XtendiMax, a dicamba-based herbicide that is sprayed on soybeans and cotton genetically engineered to


Dicamba-resistant Palmer amaranth is showing up in Tennessee. Farmers there are already in a battle with glyphosate-resistant Palmer amaranth.

Dicamba-resistant Palmer amaranth found in U.S.

Farmers there started growing dicamba-tolerant soybeans in 2016

The list of herbicide-resistant weeds continues to grow. Dicamba-resistant Palmer amaranth weeds have been found in parts of Tennessee, University of Tennessee Extension weed specialist Larry Steckel wrote in a July blog. “Results from some of the greenhouse experiments this winter and spring, as well as in-field research this growing season, would suggest that our


(Bayer.com)

Bayer books second-quarter loss after settlement

Frankfurt | Reuters — German drugs and pesticides group Bayer reported a 9.5 billion-euro (C$14.86 billion) net loss for its second quarter, following a US$10.9 billion settlement of U.S. lawsuits claiming that its Roundup herbicide caused cancer. The charges stemmed mainly from agreements which attempted to wrap up legal disputes inherited with its US$63 billion

Weather conditions that can volatilize dicamba herbicide

Weather conditions that can volatilize dicamba herbicide

Avoid applying all herbicides during temperature inversions too

In addition to drift caused by wind the herbicide dicamba can end up off target due to volatilization, also referred to as vapour drift, and temperature inversions. Last week’s stories on dicamba (see ‘Related Articles’ below) prompted a reader to ask about the weather conditions for both. The University Minnesota explains it on its website

A dicamba-damaged soybean plant.

Canadian, U.S. farmers diverge on dicamba spray issues

While U.S. farmers have been devastated by dicamba drift, it’s been a non-issue in Canada

Canadian farmers haven’t experienced the same dicamba drift debacle their U.S. neighbours have — but that doesn’t mean they won’t also pay a price for this high-profile failure. Spray expert Tom Wolf says a cooler climate and differences in the way the product is used here have spared Canada the worst immediate effects. The bill


Dicamba spray drift declining in Canada

The climate and how the herbicide is used here both are factors

There haven’t been many dicamba drift complaints in Canada since Monsanto commercialized dicamba-resistant soybeans in 2016. In 2019 Health Canada received just “16 reports of dicamba-related environment incidents in Canada related to drift and over-the-top application of dicamba to soybean,” a Health Canada official wrote in an email June 10. Health Canada, which regulates pesticides in Canada through the

Precautions to take when applying dicamba

Precautions to take when applying dicamba

The best way to avoid dicamba drift is to follow label directions. Although dicamba can be applied to Xtend soybeans from pre-emergence to early flowering, applying pre-emergence has advantages. One is if your crop isn’t up, your neighbour’s might not be either and can’t be damaged by drift. “Dicamba provides residual control for a short