Factory Tsetse Flies Must Behave Like Wild Flies: A Prerequisite for the Sterile Insect Technique
| Autor: | Jérémy Bouyer, Khalfan M. Saleh, Marc J. B. Vreysen, Renaud Lancelot |
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| Rok vydání: | 2011 |
| Předmět: |
Male
Integrated pest management L73 - Maladies des animaux Population density Sterile insect technique Radiation Ionizing Dynamique des populations education.field_of_study biology Ecology lcsh:Public aspects of medicine Lâcher d'insectes stériles Viewpoints Infectious Diseases Ecology/Population Ecology Forêt Female Livestock L72 - Organismes nuisibles des animaux lcsh:Arctic medicine. Tropical medicine Glossina Tsetse Flies lcsh:RC955-962 Distribution géographique Organisme indigène Population Zoology Insect Control Animals Ecology/Behavioral Ecology education Africa South of the Sahara Infertility Male business.industry fungi Public Health Environmental and Occupational Health Pest control Tsetse fly lcsh:RA1-1270 Stérilisation biology.organism_classification Glossinidae Lutte biologique Infectious Diseases/Neglected Tropical Diseases Vector (epidemiology) business |
| Zdroj: | PLoS Neglected Tropical Diseases PLoS Neglected Tropical Diseases, Vol 5, Iss 2, p e907 (2011) |
| ISSN: | 1935-2735 |
| DOI: | 10.1371/journal.pntd.0000907 |
| Popis: | Tsetse flies are the vectors of human and animal African trypanosomoses, the former a major neglected disease, and the latter considered among the greatest constraints to livestock production in sub-Saharan Africa. To date, the disease is mainly contained through the prophylactic and curative treatment of livestock with trypanocidal drugs, which is not sustainable. The removal of the vector, the tsetse fly, would be the most efficient way of managing these diseases. A number of efficient tsetse control tactics are available that can be combined and applied following area-wide integrated pest management (AW-IPM) principles [1]. The concept entails (1) the integration of various control tactics, preferably combining those methods that are effective at high population densities with those that are effective at low population densities to obtain maximal efficiency, and (2) the control effort is directed against an entire tsetse population within a delimited area. This is particularly relevant in case eradication is the strategy of choice. Genetic control tactics such as the sterile insect technique (SIT) show great potential for integration in such AW-IPM programmes because they are very efficient for controlling low-density populations, which is not the case for most other techniques. Sterile male insects are reared and, after sterilization with ionizing radiation, sequentially released in large quantities to outnumber the wild male flies. A mating of a sterile male with a virgin wild female fly results in no offspring. Recently, transgenic and paratransgenic techniques have been proposed to sterilize male insects or to make strains refractory to disease parasites in the case of vectors [2]–[4]. However, to ensure the success of these control methods, factory-reared tsetse flies must be competitive with their wild counterparts and must exhibit a similar behaviour in a natural environment. |
| Databáze: | OpenAIRE |
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