weed killers

November 18, 2024

Despite critics, organic farming thrives in heart of US corn country

By Keith Schneider

WEST BEND, Iowa – People searching for ways to limit the toll industrialized American agriculture takes on communities, land, and water may want to make a visit to Clear Creek Acres in northern Iowa.

With just shy of 800 residents, West Bend, Iowa is barely a blip on a prairie landscape, but it has become home base for an uncommonly large expanse of organically grown crops- operations that have found success in challenging the popular convention that pesticides and other agricultural chemicals are needed to feed the world.

Towering grain bins are surrounded by close to 50,000 acres of corn, soybeans, oats and other crops grown without the use of synthetic chemicals. Farmers fertilize the land with chicken litter and hog manure and weed much of the land by hand, or with non-chemical tools, such as new laser weeders.

What’s occurred here since 1998, when farmer Barry Fehr experimented with raising chemical-free soybeans on 45 acres, is the development of the most expansive and profitable area of organic grain production in Iowa, and possibly the United States. Most of the land is farmed by multiple generations of the Fehr family. The family also manages about 3,000 organic acres in Colorado. Generating millions of dollars annually in a “sustainable income,” the success of the organic operations here in the heart of corn country defies long-held conventions about a need for chemicals in farming.

The agrochemical industry, led by Monsanto-owner Bayer, Syngenta and other global seed and chemical giants, maintains that weed killers, insecticides and other pesticides are essential to robust food production, and that a growing global population requires use of the chemicals in agriculture.

But 71-year-old Dan Fehr, who has been farming more than 50 years, says “that is debatable.”

The Fehr family farms are nearly matching the yields of crops grown conventionally, perhaps seeing only about a 10% yield decline in comparison, Fehr said. Their costs are lower because they’re not buying pesticides and the high-priced genetically modified seeds designed to be used with certain weed killing pesticides.

And the prices they reap are higher because organic crops command premiums in a marketplace where consumer demand for organic foods is climbing. About 25,000 acres of the Fehr farms in Iowa generate approximately $40 million a year in crop sales.

“The premium we got from selling organics is the key reason,” said Fehr. “The demand for organic has definitely grown a lot. That is why we do it.”

And, he added – “Nobody has died of not using pesticides. I don’t think it will hurt anything not to use pesticides.”

October 22, 2024

Bayer’s new Roundup products appear more toxic than prior formulations, new report asserts

By Carey Gillam

New types of Roundup weed killing products marketed to US consumers contain chemicals that pose greater health risks to people than prior formulations suspected of causing cancer, according to an analysis by an environmental health advocacy group.

Friends of the Earth (FOE) reported Tuesday it found four chemicals have recently been added to Roundup products that have been scientifically shown to cause a variety of health problems, including reproductive defects, kidney and liver damage, cancer, and neurotoxicity.

The analysis comes after the agrochemical company Bayer pledged that it would remove glyphosate from its popular Roundup herbicide products sold for residential lawn and garden use starting in 2023.

Bayer, which bought Monsanto in 2018, made the change to try to curtail the filing of future litigation as it battles thousands of lawsuits filed against Monsanto by cancer patients who claim they developed non-Hodgkin lymphoma from using Monsanto’s Roundup and other glyphosate-based herbicides.

But FOE said it found the chemicals used in the new Roundup formulations are, on average, 45 times more toxic to humans experiencing chronic exposure than glyphosate-based Roundup. The chemicals were roughly four times more acutely toxic, the group said.

Notably, all four of the added chemicals pose greater risk of long-term and/or reproductive health problems than does glyphosate, based on the Environmental Protection Agency’s (EPA) evaluation of safety studies, FOE said.

Of the four chemicals found in the products – diquat dibromide, fluazifop-P-butyl, triclopyr, and imazapic – the “worst offender”, according to FOE, is diquat dibromide. It is 200 times more toxic than glyphosate when exposure occurs over a long period of time, the group said, and is banned in the European Union. It is 27 times more toxic in acute exposures, the group said.

Kendra Klein, FOE deputy director for science and an author of the report, said the Environmental Protection Agency (EPA) should be providing stronger oversight.

“People need to realize that the EPA has long put the profits of companies like Bayer ahead of their health when it comes to pesticides,” Klein said. “And now, they’ve allowed Bayer to quietly swap out the chemicals in Roundup, making it far more toxic to people’s health, without changing the packaging or warning consumers of the increased risks.”

July 10, 2024

In bid to slash chemical use, robots take on farm fields

By Carey Gillam

Cheney, Kan. – On a sweltering summer day in central Kansas, farm fields shimmer in the heat as Clint Brauer watches a team of bright yellow robots churn up and down the rows, tirelessly slicing away any weeds that stand in their way while avoiding the growing crops.

The battery-powered machines, four feet long and two feet wide, pick their way through the fields with precision. Programmed with myriad data points about the field, the artificial intelligence (AI)-driven bots run without any human hand to guide them.

Brauer, a former California-based tech executive who moved back to his family farm in central Kansas after his father developed Parkinson’s disease, sees the robots as critical tools to help farmers reduce their reliance on chemicals and be more protective of their health and the environment.

His Greenfield agricultural technology company now builds and programs its robots in a shed behind an old farmhouse where his grandmother once lived. Farmers who hire the robots are charged a flat rate per acre weeded. Twenty farmers are signed up for the robotic services this season, and the company hopes to weed 10,000 acres this year.

“The answer is here,” he said. “This solves a lot of problems for farmers.”

Greenfield is one of many agricultural robotic companies springing up amid a confluence of concerns over the future of farming. Fears about the harmful impacts of farm chemicals on the environment and on public health are key drivers, as is the need to deal with the diminishing effectiveness of overused weed killing chemicals, labor shortages, and the high costs that farmers face with conventional farming practices.

Financial backing is flowing to these companies from venture capital funds, private investors and large food and agricultural companies eager to make bets on the bots as a means to promote more sustainable food production – a notion increasingly finding favor with consumers.

The investment arm of Chipotle Mexican Grill, a global restaurant chain, is among Greenfield’s investors. Christian Gammill, who leads Chipotles venture fund, said Greenfield’s work is “important and impactful.” Greenfield has raised about $12 million in capital, and is seeking more, according to Brauer.

ReGen Ventures, a venture capital fund operating in Australia and the US, has so far sunk $6 million – with more planned – into North Dakota-based Aigen Robotics, which uses AI and camera vision to sense plants and remove weeds while avoiding crops. Aigen declares on its website to be “building a future with no harmful chemicals in our food.” The compact robots are powered via solar panels fixed to the top of each machine and are designed to work autonomously, sleeping and waking up on farms fields.

“They are well on their way to displacing chemicals from ag and enabling a new, regenerative food production system,” said ReGen founder Dan Fitzgerald.

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March 7, 2023

Guest Column: Paraquat and the deliberate production of ignorance

By E. Ray Dorsey, M.D., and Amit Ray, Ph.D

Nearly 60 years ago, a chemical company found that skin exposure to very high doses of its weedkiller paraquat caused “weakness and incoordination” in rabbits. Large amounts of the herbicide, which is used on corn, cotton, and vineyards, caused some mice and rats in its labs to develop a stiff gait or tremors. A decade later, an autopsy of a farm worker exposed to paraquat showed “degenerative change” in the “cells of the substantia nigra,” a pathological hallmark of Parkinson’s disease.

Rather than remove this dangerous chemical from the market or develop a safer alternative, the company doubled down on its “blockbuster” product and sought to expand its use. Along the way, the company appeared to use techniques to underestimate the toxic effects of the chemical, hide the results of its own research from regulatory authorities, and discredit the research of an academic investigator and prevent her from serving on a U.S. Environmental Protection Agency (EPA) advisory panel.

The company’s alleged efforts seem to have worked brilliantly. Despite numerous animal and epidemiological studies linking the environmental toxicant to Parkinson’s disease, paraquat’s use in the United States from 2013 to 2018 more than doubled. As pesticides can contaminate drinking water and pollute the air their harmful effects are not limited to farmers but extend (at least) to other rural residents who also have a higher risk of developing Parkinson’s disease. Because of its health risks, over 30 countries—including China—have banned paraquat. Yet in 2021 the EPA reauthorized its use even though its own website says, “One Sip Can Kill.”