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Davis, Rex; Tisdell, Clement A.. |
Outlines economic threshold models developed by various authors as an aid to decision-making about pest management. Particular attention is given to the models proposed by Stern et al. (1959) and by Headley (1972) and the major differences in their concepts of the economic threshold. Limitations and scope for applying these models is discussed as well as differences in the extent of their applications are reviewed. After considering general issues in this respect, particular matters are given attention such as difficulties raised by complexities in the nature of yield loss function due to uncertainty in pest densities, the presence of multiple-pests, and the occurrence of pesticide resistance. An extension is provided for multiple species pest models to... |
Tipo: Working or Discussion Paper |
Palavras-chave: Pest control; Pest management; Livestock; Livestock Production/Industries. |
Ano: 2001 |
URL: http://purl.umn.edu/48381 |
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Davis, Rex; Harrison, Stephen R.. |
Several authors have recognised pests as a negative common property resource. As a common property issue, there are often benefits to be gained in regional coordination of pest control activities. Entomologists have also recognised the potential benefits from regional coordination programs and have encouraged areawide Integrated Pest Management (IPM) strategies. However, despite the acknowledgment of differences between individual and regional economic thresholds, studies have not been conducted into the conditions that ensure or prevent collective action in pest control. This is surprising given the vast amount of literature on collective action theory and practice that has accumulated since the work of Mancur Olson. This paper discusses pest control and... |
Tipo: Presentation |
Palavras-chave: Crop Production/Industries. |
Ano: 1999 |
URL: http://purl.umn.edu/123800 |
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