Luis, seen at 17, picks strawberries in the Salinas Valley. He started working in the fields when he was 13 years old. He and his mother were fired from his first job, he says, because he was unable to work fast and fill enough boxes with berries. He described working in a strawberry field while a nearby tractor was spraying a grayish fluid that smelled like chemicals. It made his eyes watery, he says.