Although the Great Depression affected Chula Vista significantly, agriculture still provided considerable income for the residents. In 1931, the lemon orchards produced $1 million in revenue and the celery fields contributed $600,000. Japanese American farms played a significant roll in developing new crops outside of lemons, especially celery. In the 1930s, led by Chris Mensalvas, Filipino and Mexican farm workers went on strike against the celery farms. To the east, on land that use to be Rancho Janal, dairy farming and cattle farming was done on over 4,000 acres. By the end of the 1930s, the city's population of over 4,000 residents were mostly Caucasians, with small populations of Japanese and Mexican Americans. Prior to World War II, anti-Japanese sentiment had existed in Chula Vista, due to competition between Japanese farmers and White farmers, however an association was formed which decreased those sentiments.