Insect Population Dynamics, Pesticide Use, and Farmworker Health
Insect Population Dynamics, Pesticide Use, and Farmworker Health
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DOI:
10.1111/0002-9092.00044
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发表时间:
2000-08
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通讯作者:
David L. Sunding;J. Zivin
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文献类型:
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作者:
David L. Sunding;J. Zivin
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. Copyright 2000, Oxford University Press.