Seasonal and annual trends in field populations of Mediterranean fruit fly, Ceratitis capitata, in Mediterranean citrus groves: comparison of two geographic areas in eastern Spain
2010
Martinez Ferrer, Maria Teresa | Navarro, C. | Campos Rivela, Jose Miguel | Marzal, C. | FIBLA QUERALT, JOSE MIGUEL | Bargues, L. | Garcia-Marí, F. | Producció Vegetal | Protecció Vegetal Sostenible
Seasonal and annual trends in Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) populations were analyzed to determine the factors that influence population fluctuations in the field. Adult flies were monitored along 2003-07 in two citrus areas in eastern Spain with similar climate, Valencia and Tarragona. Adults were present throughout the study period, even in winter. The initial annual population increase was related to previous winter and spring temperatures. Captures started to increase in April-May and usually reached a peak in July. This peak corresponded to the maximum capture period in Valencia, but not in Tarragona, where there was usually a second peak in autumn, with capture levels similar to the first peak. Gravid females were found throughout the year, even in overwintering populations of medfly. The availability of other host fruit species in the vicinity of the citrus groves may explain the differences in annual abundance and distribution of captures between the two areas studied.
Mostrar más [+] Menos [-]We would like to thank Rafel Monfort for his help with the field work. This research was funded by a project from the Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), of Spain’s Ministerio de Educación y Ciencia (Project RTA03- 103-C6). We thank also Alejandro Tena for useful comments on early drafts of the manuscript.
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