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Entomophaga

, Volume 33, Issue 1, pp 3–6 | Cite as

Economics of the cassava mealybug [Phaenacoccus Manihoti; Hom.: Pseudococcidae] biological control program in Africa

  • Richard B. Norgaard
Opinions

Abstract

Critical analyses of current pest control practices and the role of classical biological control are needed. The costs and benefits of the introduction and release of natural enemies of the cassava mealybug are assessed. A conservative estimate shows that the benefit to cost ratio of this project is extremely high (149∶1).

Keywords

Plant Pathology Biological Control Control Program Natural Enemy Critical Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

II est devenu impératif de chiffrer de manière précise le coût économique des mesures courantes de protection prises contre les ravageurs de plantes cultivées. Une attention particulière doit être consacrée aux résultats de la lutte biologique dite classique. La présente étude porte sur l'introduction d'ennemis naturels dans le cadre de la lutte contre la cochenille du manioc en Afrique. Il s'avère que ce programme couronné de succès procure un bénéfice de 149 dollars US pour tout dollar US investi.

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References

  1. Marsden, J. S. et al. — 1980. Returns on Australian agricultural research. —Joint Industries Assistance Commission. Canberra. CSIRO print., Melbourne, 107 pp.Google Scholar
  2. Norgaard, R. B. — 1988. The biological control of cassava mealybug in Africa. —Am. J. Agric. Econ., forthcoming.Google Scholar
  3. Winrock International. — 1987. Midterm review of the Africa-wide biological control program of the Int. Inst. Trop. Agric. Prepared for the International Fund for Agricultural Development. Petit Jean Mountain, Morrilton, Arkansas. 90+XVI pp.Google Scholar

Copyright information

© Lavoisier Abonnements 1988

Authors and Affiliations

  • Richard B. Norgaard
    • 1
  1. 1.Energy and Resources Program and Department of Agricultural and Resource EconomicsUniversity of CaliforniaBerkeleyUSA

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