Vorschaubild nicht verfügbar
Publikationstyp
Wissenschaftlicher Artikel
Erscheinungsjahr
2013
Sustainable control of mosquito larvae in the field by the combined actions of the biological insecticide Bti and natural competitors
Sustainable control of mosquito larvae in the field by the combined actions of the biological insecticide Bti and natural competitors
Autor:innen
Herausgeber
Quelle
Journal of vector ecology
38 (2013), H. 1, Seite 82-89
38 (2013), H. 1, Seite 82-89
Schlagwörter
Biologische Schädlingsbekämpfung, Besiedlung, Insektizid
Finanzierungskennzeichen
standardisiertes Finanzierungskennzeichen
Verbundene Publikation
Zitation
Sustainable control of mosquito larvae in the field by the combined actions of the biological insecticide Bti and natural competitors, 2013. Journal of vector ecology [online]. Bd. 38 (2013), H. 1, Seite 82-89. DOI 10.60810/openumwelt-1154. Verfügbar unter: https://openumwelt.de/handle/123456789/8860
Zusammenfassung englisch
Integrated management of mosquitoes is becoming increasingly important, particularly in relation to avoiding recolonization of ponds after larvicide treatment. We conducted for the first time field experiments that involved exposing natural populations of the mosquito species Culex pipiens to: a) application of the biological insecticide Bacillus thuringiensis israelensis (Bti), b) the introduction of natural competitors (a crustacean community composed mainly of Daphnia spp.), or c) a combined treatment that involved both introduction of a crustacean community and the application of Bti. The treatment that involved only the introduction of crustaceans had no significant effect on mosquito larval populations, while treatment with Bti alone caused only a significant reduction in the abundance of mosquito larvae in the short-term (within 3-10 days after treatment). In contrast, the combined treatment rapidly reduced the abundance of mosquito larvae, which remained low throughout the entire observation period of 28 days. Growth of the introduced crustacean communities was favored by the immediate reduction in the abundance of mosquito larvae following Bti administration, thus preventing recolonization of ponds by mosquito larvae at the late period (days 14-28 after treatment). Both competition and the temporal order of establishment of different species are hence important mechanisms for efficient and sustainable mosquito control.Quelle: http://www.ncbi.nlm.nih.gov