Comparative Responses of Anastrepha ludens And Anastrepha obliqua (Diptera: Tephritidae) to the Synthetic Attractant BioLure
Periodo de realización: 1900/01/01 al 2016/06/01
Tipo: Artículo científico
Lugar(es) de estudio: Tapachula de Córdova y Ordoñez, Chis., México
Resumen: "The responses of wild and sterile Anastrepha ludens (Loew) and Anastrepha obliqua (Mcquart) fruit flies to thesynthetic attractant BioLure were determined by electroantennography (EAG), in field cage tests usingMultiLure traps, and by release–recapture field experiments using sterile flies. In EAG bioassays, no differenceswere found between species, sexes, sterile and wild flies. There were only specific differences and interactionsin dose responses. More A. ludens than A. obliqua individuals were captured in multilure traps in field cagetest. In A. ludens, there was not significant difference between the number of females and males captured,whereas in A. obliqua more females than males were caught. Age showed a bimodal response in both speciesand both sexes, with peaks at 4 and 14 d old. In the release–recapture experiments, there were significant differencesbetween species, sexes, and orchards and among the days after release. More individuals of A. ludensthan A. obliqua were recaptured. Only in A. obliqua the difference between the sexes was significant, with a3.60:1 female:male ratio. Orchard conditions affected the recapture rate, but in both orchards the largest numberof flies recaptured occurred during the first day after release (46 and 88% in each orchard). Our results showthat the response to this synthetic lure is species-specific and contribute to better interpret trapping data.Key words: Mexican fruit fly, West Indian fruit fly, food attractant, electroantennography, trapping"