California rice having low levels fits with sevensor's theory about boll weevil control with arsenates on fields used for cotton and later for rice. This report

California rice having low levels fits with sevensor's theory about boll weevil control with arsenates on fields used for cotton and later for rice. This report [1] says that boll weevils weren't an issue in California cotton fields, and that likely means arsenates wouldn't have been used, so if those fields switch to rice, they won't have high levels of arsenic from previous insecticide application. https://apps1.cdfa.ca.gov/FertilizerResearch/docs/Cotton_Production_CA.pdf https://apps1.cdfa.ca.gov/FertilizerResearch/docs/Cotton_Pro...