Green groups sue EPA over BASF herbicide

Comparing the herbicide trifludimoxazin to dicamba, two environmental groups asked the U.S. appeals court in San Francisco to set aside the EPA’s unconditional approval in May of the new weedkiller. Trifludimoxazin is sold by BASF under the brand name Tirexor and is the first new “mode of …

Arkansas court changes dicamba deadline

Soybean and cotton growers in Arkansas are free to spray the weedkiller dicamba on their crops until June 30 under an order from the Arkansas Supreme Court on Tuesday. It was the latest turnabout in court for use of the herbicide, which has been embraced by farmers as a tool against invasive weeds but criticized as too likely to evaporate from its target areas and land on nearby fields.

EPA managers intruded on dicamba decision making

Three mid-level EPA officials altered scientific documents to support their 2018 decision to keep the weedkiller dicamba in use, reported the office of inspector general at EPA on Monday. Their decision, to extend registration of the herbicide for two years, was overturned by a federal appeals …

First 100 days: It’s Biden’s EPA now. What does that mean for the agrochemical industry? 

Hours after his inauguration, President Biden issued an executive order to review 48 actions by the Trump-era Environmental Protection Agency, including several controversial decisions on agricultural chemicals. Environmental and food safety groups saw the action as a welcome sign that the Biden EPA will begin to temper what they see as the agency's industry-friendly stance and prioritize the environment, public health, and science. (No paywall)

Lawsuit would overturn EPA approval of dicamba

The EPA failed to ensure that dicamba can be used safely when it issued a five-year approval of the weedkiller, said a lawsuit that asks a federal appeals court in San Francisco to vacate the EPA registration of the herbicide. Foes say dicamba is overly prone to evaporate from where it is …

EPA approves dicamba on GE cotton and soybeans through 2025

The Trump administration approved the use of the weedkiller dicamba on genetically engineered cotton and soybeans for the next five years, saying new safeguards would tame a notoriously volatile herbicide blamed for damaging millions of acres of neighboring lands. Farm groups cheered the continued access to a "critically important weed control tool" and the Center for Food Safety, a skeptic of industrial agriculture, said it "will most certainly challenge these unlawful approvals."

Block dicamba until weedkiller is under control, says report

The herbicide dicamba is too risky to use on row crops such as soybeans and cotton until independent research shows it won't evaporate and harm nearby crops and plants, said a report from three conservation and environmental groups on Wednesday. Dicamba is blamed for "off-target" damage on millions of acres of property, and the EPA is considering possible rules for its use on crops in the future.

Dicamba-resistant weeds established in western Tennessee

The fast-growing weed Palmer amaranth has developed a tolerance for dicamba herbicide in least five counties in western Tennessee and likely several others, said University of Tennessee weed specialist Larry Steckel on Monday. The report was a setback for dicamba, which was introduced a few years ago as a new tool for control of invasive weeds that showed resistance to glyphosate and other weedkillers.

Bayer to pay up to $11.3 billion to resolve glyphosate, dicamba litigation

Under the terms of an agreement announced Wednesday, seed and agribusiness giant Bayer will pay up to $10.9 billion to resolve lawsuits that accuse its Roundup herbicide of causing cancer, and an additional $400 million to settle litigation claiming crop damage caused by its dicamba weedkiller from 2015 to 2020.

Appellate court backs EPA on dicamba phase-out

The Ninth Circuit U.S. Court of Appeals rejected an emergency motion for an immediate cutoff of farmer use of the weedkiller dicamba, a victory for the EPA plan to allow spraying of the herbicide on GE soybeans and cotton through July 31. The court voided EPA approval of versions of dicamba sold by Bayer, BASF and Corteva on June 3; a few days later, the EPA said farmers could use stocks already on the farm through the end of July.