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Invasive Alien Species in the Dominican Republic: Their Impact and Strategies to Manage Introduced Pests

Author

Listed:
  • Serra, C.A.
  • Jorge, P.E.
  • Abud-Antun, A.J.
  • Alvarez, P.
  • Perguero, B.

Abstract

The increased exchange of agricultural goods and people has unleashed the spread of alien species in the Caribbean. The Dominican Republic, as well, has been burdened with the introduction of dozens of alien species, including a substantial number with high invasive potential. Some of these have caused significant economic losses to affected crops within intensive agro-ecosystems, and others have displaced native species, and/or interfered with the functioning of susceptible ecosystems. Herein we list about 50 cases of introduced agricultural pests including arthropods, molluscs, and plant pathogens causing fungal, bacterial, viral or other diseases. We briefly review selected examples with respect to their detection, impact and countermeasures taken. In most cases involving introduced alien arthropods, the lack of specialized antagonists, and/or the ineffectiveness of native antagonists have permitted rapid dispersal of the introduced pests. This has occurred in the cases of vectors of plant pathogens (aphids, and whiteflies), mealybugs, thrips, fruit flies, the coffee-berry borer, and recently the pigeon pea pod fly. Thus far, no introduced pests have been eradicated from the Dominican Republic. On the other hand, intentional or accidental introductions of antagonists of some introduced insect pests have resulted in dramatic population decreases of these alien species, often to levels well below economic-damage levels. This decrease has been achieved in the cases of the citrus blackfly, the citrus leafminer, the brown rice bug, and the papaya mealybug. Regarding the pink hibiscus mealybug, the combination of parasitoid species, probably introduced together with the pest, and the predacious mealybug destroyer already present since the 1930s, and the implementation of classical biocontrol have not permitted damage at levels comparable to those caused by this pest in the Lesser Antilles during the last decade.

Suggested Citation

  • Serra, C.A. & Jorge, P.E. & Abud-Antun, A.J. & Alvarez, P. & Perguero, B., 2003. "Invasive Alien Species in the Dominican Republic: Their Impact and Strategies to Manage Introduced Pests," 39th Annual Meeting, July 13-18, 2003, Grenada, West Indies 256720, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs03:256720
    DOI: 10.22004/ag.econ.256720
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    References listed on IDEAS

    as
    1. Meyerdirk, Dale E. & De Chi, Lionel Wayne, 2003. "Models for Minimizing Risks of Dangerous Pests: The Pink Hibiscus Mealybug and Papaya Mealybug," 39th Annual Meeting, July 13-18, 2003, Grenada, West Indies 256589, Caribbean Food Crops Society.
    2. Serra, Colmar A. & Garcia, Socorro & Segura, Yony & Arias, Juan, 2003. "Dramatic Impact of the Recently Introduced Asian Pigeon Pea Pod Fly, Melanagromyza Obtusa (Malloch) (Diptera: Agromyzidea), In the Dominican Republic," 39th Annual Meeting, July 13-18, 2003, Grenada, West Indies 256725, Caribbean Food Crops Society.
    3. Pegram, Rupert G. & Indar, Lisa & Holmes, Rupert J. & Eddi, Carlos, 2003. "Models for Minimizing or Eliminating Risks of Dangerous Pests: the Caribbean AMBLYOMMA Program," 39th Annual Meeting, July 13-18, 2003, Grenada, West Indies 256588, Caribbean Food Crops Society.
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    Cited by:

    1. Valentine, Modesto Reyes & Alvarez, Caridad Nolasco & Mercedes, Leandro, 2009. "The Caribbean Regional Diagnostic Network: Status And Prospects For Expansion Towards Coordinated Regional Safeguarding," 45th Annual Meeting, July 12-17, 2009, Frigate Bay, St. Kitts and Nevis 256439, Caribbean Food Crops Society.
    2. Serra, C. A., 2005. "Update On Invasive Species Initiatives In The Dominican Republic," 41st Annual Meeting, July 10-16, 2005, Guadeloupe, French Caribbean 256162, Caribbean Food Crops Society.

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