US Supreme Court hears pesticide warning preemption case
Updated
Updated · The Conversation · Apr 30
US Supreme Court hears pesticide warning preemption case
8 articles · Updated · The Conversation · Apr 30
The dispute centres on Monsanto's Roundup and a Missouri jury's $1.25m award to John Durnell, whose non-Hodgkin lymphoma claim was upheld on appeal in 2025.
Monsanto, backed by the Trump administration, says EPA-approved labels under federal pesticide law block state failure-to-warn suits; Durnell argues EPA registration does not erase civil liability.
The ruling could shape tens of thousands of pending glyphosate cases after Bayer paid over $10bn to settle about 100,000 claims, amid wider federal and state moves to curb such lawsuits.
After billions in settlements, could a Supreme Court ruling end future Roundup cancer claims for good?
With science divided on Roundup's cancer link, should federal approval shield companies from all lawsuits?
Does a federal agency's safety approval overrule a state's right to protect its own citizens?
Monsanto v. Durnell: Will FIFRA Preempt State Failure-to-Warn Claims on Glyphosate?
Overview
The Supreme Court's April 2026 hearing in Monsanto v. Durnell centers on whether state failure-to-warn lawsuits against pesticide makers are blocked by federal law under FIFRA. John Durnell's 2019 lawsuit claims Monsanto failed to warn about cancer risks from Roundup, despite EPA-approved labels. The case highlights a clash between federal regulatory uniformity and states' power to protect consumers through tort law. The Court's ruling, expected by July 2026, could dismiss thousands of lawsuits if broad preemption is affirmed, benefiting Bayer and the pesticide industry, or allow claims to proceed, preserving state legal recourse. This decision will shape the balance of power in pesticide safety and consumer protection.