• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
FinanceBayer

Bayer is going all in to create legal shields in Missouri, Iowa and Idaho against 170,000 Roundup weedkiller lawsuits it faces

By
David A. Lieb
David A. Lieb
and
The Associated Press
The Associated Press
Down Arrow Button Icon
By
David A. Lieb
David A. Lieb
and
The Associated Press
The Associated Press
Down Arrow Button Icon
May 22, 2024, 4:50 AM ET
Plastic containers Roundup
Maker of popular weedkiller Roundup amplifies fight against cancer-related lawsuits Geography Photos/Education Images/Universal Images Group via Getty Images

After failing in several U.S. states this year, global chemical manufacturer Bayer said Tuesday that it plans to amplify efforts to create a legal shield against a proliferation of lawsuits alleging it failed to warn that its popular weedkiller could cause cancer.

Bayer, which disputes the cancer claims, has been hit with about 170,000 lawsuits involving its Roundup weedkiller and has set aside $16 billion to settle cases. But the company contends the legal fight “is not sustainable” and is looking to state lawmakers for relief.

Bayer lobbied for legislation that could have blocked a central legal argument this year in Missouri, Iowa and Idaho — home, respectively, to its North America crop science division, a Roundup manufacturing facility and the mines from which its key ingredient is derived. Though bills passed at least one chamber in Iowa and Missouri, they ultimately failed in all three states.

But Bayer plans a renewed push during next year’s legislative sessions and may expand efforts elsewhere.

“This is bigger than just those states, and it’s bigger than just Bayer,” said Jess Christiansen, head of Bayer’s crop science and sustainability communications. “This is really about the crop protection tools that farmers need to secure production.”

Many U.S. farmers rely on Roundup, which was introduced 50 years ago as a more efficient way to control weeds and reduce tilling and soil erosion. For crops including corn, soybeans and cotton, it’s designed to work with genetically modified seeds that resist Roundup’s deadly effect.

The lawsuits allege Roundup’s key ingredient, glyphosate, causes a cancer called non-Hodgkin lymphoma. Though some studies associate glyphosate with cancer, the U.S. Environmental Protection Agency has said it is not likely to be carcinogenic to humans when used as directed.

The legislation backed by Bayer would protect pesticide companies from claims they failed to warn their products could cause cancer if their labels otherwise comply with EPA regulations.

Some lawmakers have raised concerns that if the lawsuits persist, Bayer could pull Roundup from the U.S. market, forcing famers to turn to alternatives from China.

Christiansen said Bayer has made no decisions about Roundup’s future but “will eventually have to do something different if we can’t get some consistency and some path forward around the litigation industry.”

Bayer’s most recent quarterly report shows that it shed more than 1,500 employees, reducing its worldwide employment to about 98,000. Bayer submitted a notice to Iowa that 28 people would be laid off starting Wednesday at its facility in Muscatine.

The Iowa layoffs are not a direct result of the failure of the protective legislation, Christiansen said, but are part of a global restructuring amid “multiple headwinds,” which include litigation.

Bayer has bankrolled a new coalition of agriculture groups that has run TV, radio, newspaper and billboard ads backing protective legislation for pesticide producers. The campaign has especially targeted Missouri, where most of the roughly 57,000 still active legal claims are pending. Missouri was the headquarters of Roundup’s original manufacturer, Monsanto, which Bayer acquired in 2018.

Legal experts say protective legislation is unlikely to affect existing lawsuits. But it could limit future claims.

The annual deadline to pass legislation in Missouri expired last Friday. Though a Bayer-backed bill cleared the Republican-led House and a Senate committee, it never got debated by the full GOP-led Senate, which was mired in unrelated tensions.

If the legislation is revived next year, it could face resistance from senators concerned about limiting people’s constitutional right to a jury trial to resolve disputes.

“I support farmers, but I also think they need due process,” said Republican state Sen. Jill Carter, who voted against the legislation this year in the Senate agriculture committee.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Authors
By David A. Lieb
See full bioRight Arrow Button Icon
By The Associated Press
See full bioRight Arrow Button Icon

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Finance

Bill Powers smiles at the camera
AIInsurance
Exclusive: Cambridge Mobile Telematics secures $350 million from TPG, Allianz to make driving safer
By Lily Mae LazarusMarch 24, 2026
1 hour ago
Personal FinanceSavings accounts
Today’s top high-yield savings rates: Up to 5.00% on March 24, 2026
By Glen Luke FlanaganMarch 24, 2026
2 hours ago
Personal FinanceBanks
Top CD rates today, March 24, 2026: Lock in up to up to 4.20%
By Glen Luke FlanaganMarch 24, 2026
2 hours ago
homes
Real EstateHousing
Nearly three in five Americans think AI will push homeownership even further out of reach
By Jake AngeloMarch 24, 2026
3 hours ago
stephany
Commentarydisruption
AI’s disruption is a choice, not a forecast
By Alex StephanyMarch 24, 2026
4 hours ago
Personal Financemortgages
Mortgage rates today, March 24, 2026
By Glen Luke FlanaganMarch 24, 2026
5 hours ago

Most Popular

Commentary
The Treasury just declared the U.S. insolvent. The media missed it
By Fortune EditorsMarch 23, 2026
21 hours ago
Personal Finance
Current price of gold as of March 23, 2026
By Fortune EditorsMarch 23, 2026
23 hours ago
Economy
It took 200 years for national debt to hit $1 trillion. Annual interest alone now exceeds that—a 'crushing legacy we must reverse,' says budget chair
By Fortune EditorsMarch 23, 2026
1 day ago
Personal Finance
Current price of oil as of March 23, 2026
By Fortune EditorsMarch 23, 2026
23 hours ago
Health
Trump has TACO'd again, this time in Iran, sparking a $1.7 trillion stock market rally in minutes, even as peace talks are in question
By Fortune EditorsMarch 23, 2026
21 hours ago
Success
Dairy Queen CEO says he learned from Warren Buffett being the 'smartest person in the world' isn't the most important attribute for success
By Fortune EditorsMarch 21, 2026
3 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.