Legislators on one Hawaiian island recently passed their own bill restricting pesticide use by companies developing genetically modified plants. Because of its location, Kauai has become a hot spot for new genetically modified crops, particularly corn, which is grown by companies including DuPont, Syngenta and Dow. But residents say pesticides from the fields are making them sick. Last week the Kauai County Council passed a measure that requires the companies to disclose which pesticides they use and establishes buffer zones around medical facilities, schools and homes.