Can California Farm Workers File Workers' Comp Claims for Pesticide Exposure?

 Posted on May 31, 2026 in Workers' Compensation

Farm workers in California are exposed to pesticides year-round. If you have developed a rash, a breathing problem, or another health condition tied to these chemicals, you may be able to file a workers' compensation claim. A Gilroy, CA workers' compensation attorney can help you understand what you are owed in 2026.

Does California Workers' Comp Law Cover Pesticide Illness?

California Labor Code Section 3208 defines "injury" to include diseases and illnesses caused by your job, and pesticide exposure falls under that definition. You do not need to prove a single large incident occurred to qualify. If repeated contact with pesticides over weeks or months caused your condition, that counts.

Labor Code Section 3700 requires every farm employer in California to carry workers' compensation insurance, regardless of how many workers they have. That coverage applies to full-time, part-time, and seasonal workers. Your immigration status does not affect your right to file, and workers paid in cash or hired through informal arrangements may still be covered if they are legally treated as employees and were exposed to pesticides while doing their job.

How Often Are California Farm Workers Made Sick by Pesticides?

In 2022, the California Department of Pesticide Regulation reported 311 illnesses or injuries tied to agricultural pesticide use through its Pesticide Illness Surveillance Program. In that same year, a single pesticide exposure episode affected 163 field workers at once. 

Now consider that those numbers only reflect reported incidents and many workers never report symptoms. Some workers do not know their illness is connected to pesticides, while others do not know they have the right to file a claim. The true scope of pesticide illness among California farm workers is almost certainly much larger than any report can capture.

How Do Farm Workers Come Into Contact With Pesticides on the Job?

Exposure to pesticides on work sites does not always happen in obvious ways. Pesticide drift, where chemicals sprayed on a nearby field travel through the air and reach workers who aren't near the application, is one of the most common causes. Workers who re-enter a treated field too soon face exposure, as do those who mix, load, or apply pesticides directly, especially when the right protective gear is not provided or is defective.

Not all exposure to pesticides causes immediate harm. Symptoms from a single heavy exposure usually appear within hours, but low-level contact over many months can cause damage that takes much longer to show up.

What Symptoms Can Signal a Pesticide Injury at Work?

Symptoms that appear soon after heavy exposure to pesticides include headaches, dizziness, nausea, skin rashes, eye irritation, and trouble breathing. These are easier to tie to a specific event.

Other conditions related to pesticide exposure take longer to develop. Long-term exposure can lead to lung disease, nerve damage, and certain cancers. California Labor Code Section 3208.1 covers these as well. Under that law, injuries that build up over time through repeated exposure are treated as compensable work injuries. You may still be able to file a claim even if years have passed since the exposure occurred.

What Should Santa Clara County Farm Workers Do After Pesticide Exposure?

Taking the right steps after exposure to pesticides at work can affect your claim. Many workers wait too long to report, which gives insurers grounds to question whether the illness is work-related.

• Tell your employer about your symptoms as soon as possible. California law requires you to report within 30 days of learning about the injury or illness. A separate deadline may also apply to filing the workers’ comp claim itself, so do not wait after giving notice.

• See a doctor. Tell them clearly what your job involves and which chemicals you have been around. Good medical records are central to a successful claim.

• Write down dates, locations, and what you were doing at the time. Do this while the details are still fresh.

• Do not assume your case is too hard to prove. Insurers often push back on pesticide claims, but solid documentation makes a claim much harder to dismiss.

Keeping a written record of your symptoms as they develop is also helpful. Note when symptoms started, whether they got worse after certain workdays, and any time you asked your employer for protective equipment. 

Schedule a Free Consultation with a Gilroy, CA Workers' Comp Attorney 

If you work on farms or in agricultural settings and have developed symptoms you believe are tied to pesticide exposure, speaking with a lawyer is a good first step. The Santa Clara County, CA farm injury lawyer at Raul Martinez Injury Law Firm has over 15 years of experience handling workers' comp claims throughout the region. We offer free consultations, so call 408-848-1113 today.