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| Harper, Carolyn R.. |
| The use of chemical pesticides frequently causes minor pests to become serious problems by disturbing the natural controls that keep them in check. As a result, it is possible to suffer heavier crop losses after pesticides are introduced than before their introduction. Efficient use of pesticides requires complete biological modeling that takes the appropriate predator-prey relationships into account. A bioeconomic model is introduced involving three key species: a primary target pest, a secondary pest, and a natural enemy of the secondary pest. Optimal decision rules are derived and contrasted with myopic decision making, which treats the predator-prey system as an externality. The issue of resistance in the secondary pest is examined briefly. |
| Tipo: Journal Article |
Palavras-chave: Crop Production/Industries. |
| Ano: 1990 |
URL: http://purl.umn.edu/28823 |
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| Sarnat, Carol L.; Willis, Cleve E.; Harper, Carolyn R.. |
| In increasing numbers, communities that rely on groundwater for drinking supplies have discovered contamination from agricultural pesticides and herbicides, road salt, underground fuel storage, and septic systems. A variety of short- and long-run remedies are available with highly uncertain outcomes. An appropriate technique for solving a benefit-cost problem of this type is a sequential decision framework using stochastic dynamic programming procedures for solution. The approach is illustrated here by means of an application to the problem of the recent contamination of the groundwater of Whately, Massachusetts by the agricultural fumigant EDB and the pesticide aldicarb. |
| Tipo: Journal Article |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 1987 |
URL: http://purl.umn.edu/28981 |
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