Insect Population Dynamics, Pesticide Use, and Farmworker Health
研究旨在减少农药对农民和农业工人中毒的法规影响，重点分析收获前间隔期规定，通过动态随机模型量化农药使用激励与工人中毒的关系，并以加州萨利纳斯谷的案例验证。
Abstract We address the impacts of regulations designed to reduce pesticide poisoning of farmers and farm laborers. Attention is concentratedon pre‐harvest interval regulations that impose a time interval between pesticide application and harvest. The incidence of poisoning is determined by aggregate pesticide use, worker exposure, and toxicity. A dynamic, stochastic model of insect population growth is developed and used to measure the incentives for pesticide use. Increasing the pre‐harvest interval has an ambiguous effect on the number of harvest worker poisonings. Pesticide taxation unambiguously reduces the number of worker poisonings. Theoretical results are quantified in a case study of mevinphos application on leaf lettuce in California's Salinas Valley.