Chlorpyrifos Lawsuit

The chlorpyrifos lawsuit is about individuals and families who were exposed to the organophosphate insecticide chlorpyrifos and later developed serious neurological conditions. Plaintiffs allege that manufacturer Corteva (formerly Dow AgroSciences) knew or should have known about the chemical’s neurotoxic effects but failed to provide adequate warnings to farmworkers, pregnant women, and communities living near treated fields.

You or your child may qualify for the chlorpyrifos lawsuit if you were exposed to the pesticide and later developed Parkinson’s disease (in adults) or neurological conditions such as autism, ADHD, developmental delays, low IQ, learning disabilities, or motor deficits (in children). This includes prenatal exposure, occupational exposure as a farmworker or applicator, or residential exposure near agricultural areas.

Health conditions linked to chlorpyrifos exposure include Parkinson’s disease in adults with long-term exposure and neurodevelopmental disorders in children such as autism, ADHD, developmental delays, low IQ, learning disabilities, motor deficits, and brain damage. These injuries have been associated with prenatal or early-childhood exposure through drift, contaminated water, or direct contact.

Corteva is accused of contributing to these injuries by failing to warn users about the neurodevelopmental risks to children and the increased risk of Parkinson’s in adults, by continuing to manufacture and market the pesticide despite known dangers, and by prioritizing profits over public safety.

As of May 2026, no large-scale jury verdicts or global settlements have been reported in the chlorpyrifos litigation. However, the number of individual lawsuits is growing rapidly, particularly following the 2026 UCLA study that strengthened the scientific link to Parkinson’s disease. Early cases are moving forward in state courts.

Thousands of chlorpyrifos lawsuits are being filed because plaintiffs claim that Corteva knew or should have known about the dangers of the pesticide but failed to warn farmworkers, pregnant women, and nearby communities. The recent UCLA study linking chlorpyrifos to a more than 2.5-fold increased risk of Parkinson’s has accelerated new claims for both adult neurological harm and childhood developmental injuries.

Yes. New cases continue to be filed as awareness grows and new scientific evidence emerges. Time limits vary by state and depend on the specific facts of your case, so it is important to speak with an attorney as soon as possible to protect your rights and determine your eligibility.

Plaintiffs use a variety of evidence including medical records showing diagnosis, exposure history (work records, residency near treated fields, or pesticide application logs), communications or records from employers, and supporting scientific studies. Even without direct documentation of exposure, medical records combined with residential or occupational history can help support a claim.

Yes. If your claim is successful, you could receive compensation for medical expenses, therapy costs, lost wages, long-term care needs, pain and suffering, and other damages. Although no global settlements have been reached yet, attorneys are actively evaluating cases and working on a contingency fee basis, meaning you pay nothing upfront and only pay if you win.