Paraquat Parkinson's Lawsuit in Ohio

What Ohio residents should know

Ohio residents are not necessarily limited to filing only in Ohio state court. Many mass tort claims may be evaluated by national firms, filed in federal court, coordinated through MDL proceedings, or handled through another legal process.

State law may still matter for deadlines, damages, claim evaluation, and certain procedural issues.

What stands out about Paraquat litigation in Ohio?

Ohio is a major paraquat-use state in the Corn Belt. The USDA NASS 2018 chemical-use surveys placed Ohio among the larger corn (about 3.5 million planted acres) and soybean (about 5.0 million planted acres) states; paraquat is used in both crops as a burndown herbicide.

Federal paraquat cases filed by Ohio residents in the Northern or Southern District of Ohio are transferred by the JPML into MDL-3004 (S.D. Illinois, Chief Judge Nancy J. Rosenstengel) for coordinated pretrial proceedings.

Restricted-use pesticide applicators in Ohio are governed by Ohio Administrative Code Chapter 901:5-11, administered by the Ohio Department of Agriculture. As of mid-2026, the CSG Midwest legislative tracker indicates paraquat-related bills have been introduced in Ohio but had not passed as of late March 2026 (verify current status before relying on it). Ohio's personal injury statute of limitations is generally two years (Ohio Rev. Code § 2305.10(A)), with a 10-year repose for many product liability claims (§ 2305.10(C)).

Sources: USDA NASS 2018 Corn Chemical Use Highlights (Ohio ~3.5M acres); USDA NASS 2018 Soybean Chemical Use Highlights (Ohio ~5.0M acres); Ohio Administrative Code Ch. 901:5-11 — restricted-use pesticide applicator rules; CSG Midwest — state paraquat legislative tracker (March 2026).

Possible eligibility factors

Ohio residents may want to speak with a lawyer if they used or were exposed to Paraquat herbicide products and later experienced Parkinson's disease.

• Use, prescription, employment, service, or exposure history.
• Medical diagnosis and treatment records.
• Approximate dates of use, exposure, diagnosis, and treatment.
• Information about prior conditions, alternative exposures, or other facts a lawyer may need to evaluate.

What records support Paraquat claims in Ohio?

• Farm, applicator, co-op, employer, crop, purchase, spray-log, or pesticide-license records showing paraquat exposure.
• Records showing mixing, loading, spraying, equipment cleaning, drift exposure, or work near treated fields.
• Neurology records, movement-disorder specialist notes, medication history, and Parkinson's diagnosis records.
• Co-worker names, witness statements, photos, calendars, safety training, and documents tying exposure to a product and season.

What exposure and legal context matter in Ohio?

State residents may have encountered paraquat through farms, crop handling, pesticide application, agricultural work, mixing, loading, or nearby work activities.

Where are Ohio Paraquat cases handled?

Living in Ohio does not necessarily mean the case will be filed only in Ohio. Claims may be evaluated by national firms, filed in federal court, coordinated through MDL proceedings, or handled through another legal process.

Federal courts in Ohio

• Northern District of Ohio
• Southern District of Ohio

What is the filing deadline for Paraquat lawsuits in Ohio?

For a Ohio resident researching Paraquat claims, the starting point is usually Ohio's general personal injury period: 2 years under Ohio Rev. Code § 2305.10. That is only a starting point, not a final legal deadline for every person.

The real filing deadline can depend on diagnosis date, when the injury and possible cause were discovered, exposure location, wrongful-death issues, prior claim paperwork, and whether the case is filed directly, transferred to an MDL, or handled through another process.

Discovery-rule note: Ohio's statute includes discovery-based accrual provisions for certain exposure-related claims.

How long do Ohio residents have to file?

Ohio's personal injury statute of limitations applicable to product liability claims is 2 years (Ohio Rev. Code § 2305.10). Accrual timing, tolling, and repose periods can still change the real deadline in an individual case.

• Filing period: 2 years — Ohio Rev. Code § 2305.10.
• Discovery rule: Ohio's statute includes discovery-based accrual provisions for certain exposure-related claims.
• Statute of repose: Ohio applies a 10-year statute of repose to many product liability claims (§ 2305.10(C)).

Because the controlling deadline depends on diagnosis date, discovery facts, exposure history, wrongful-death rules, and how the claim is filed, only a licensed attorney can confirm the deadline that applies to a specific situation. This page is general legal information, not legal advice.

What should Ohio residents ask a lawyer?

• What proof do you need to connect my farm, applicator, or bystander exposure specifically to paraquat?
• How do Parkinson's diagnosis date, symptom history, and neurology records affect review?
• Does the confidential settlement program affect whether my claim can be evaluated?
• How do state filing deadlines affect my exposure and diagnosis timeline?
• Would my claim be handled locally, nationally, or through the MDL?
• Are there upfront costs?