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Eradication and pest management

J H Myers1, A Savoie, E van Randen

  • 1Department of Zoology, University of British Columbia, Vancouver, Canada. myers@zoology.ubc.ca

Annual Review of Entomology
|January 28, 1998
PubMed
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Eradication programs often have biased cost-benefit analyses. This review examines limitations, biological and sociological factors, and contrasts eradication with area-wide control for effective pest management.

Area of Science:

  • Ecology
  • Pest Management
  • Conservation Biology

Background:

  • Eradication is defined as the complete elimination of a species from a specific area, with minimal chance of recolonization.
  • Current cost-benefit analyses for eradication programs are often biased, leading to underestimation of costs and overestimation of benefits.
  • Assessing the feasibility and effectiveness of eradication versus ongoing control strategies is crucial for successful pest management.

Purpose of the Study:

  • To highlight limitations in current cost-benefit analyses used for eradication programs.
  • To evaluate eradication strategies from both biological and sociological viewpoints.
  • To contrast eradication with area-wide control as distinct pest management approaches.

Main Methods:

  • Review of existing literature on eradication programs and cost-benefit analyses.

Related Experiment Videos

  • Analysis of case studies, including successful (e.g., screwworm, cattle ticks) and unsuccessful (e.g., gypsy moth, medfly) eradication efforts.
  • Examination of biological and sociological factors influencing eradication success and failure.

    • Main Results:

    • Cost-benefit analyses frequently contain biases that skew the perceived value of eradication programs.
    • Successful eradications (screwworm, cattle ticks) and failures (gypsy moth, medfly) demonstrate the complexity of achieving complete species elimination.
    • Recolonization or recurring captures are common in areas where eradication efforts have failed.

    Conclusions:

    • In heterogeneous landscapes prone to pest reinvasion, eradication may be less realistic than area-wide suppression.
    • Sociological factors and land-use patterns significantly impact the success of eradication programs.
    • Area-wide control and education may offer more achievable and sustainable pest management goals than eradication in many scenarios.