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|Title:||Development of Novel Management Tools for Phortica variegata (Diptera: Drosophilidae), Vector of the Oriental Eyeworm, Thelazia callipaeda (Spirurida: Thelaziidae), in Europe||Autores:||González, Mikel A.
Alarcón-Elbal, Pedro María
Álvarez-Calero, J. M.
|Researchers (UNIBE):||González, Mikel A.||Affiliations:||Instituto de Medicina Tropical y Salud Global (IMTSAG)||Research area:||Ciencias de la Vida||Keywords:||Zoophilic fruit fly; Field test; Color; Netting; Bait||Issue Date:||2022||Publisher:||Oxford University Press||Source:||Journal of medical entomology, 59(1), 328-336||Journal:||Journal of Medical Entomology||Volume:||59||Issue:||1||Start page:||328||End page:||336||Abstract:||
Lachryphagous males of Phortica variegata (Fallén, 1823) are gaining increasing attention in Europe, as they act as vectors of the nematode Thelazia callipaeda Railliet & Henry, 1910, causal agent of thelaziosis, an emergent zoonotic disease. Currently, there are no effective control strategies against the vector, and surveillance and monitoring rely on time-consuming and nonselective sampling methods. Our aim was to improve the knowledge about the population dynamics and the chemical ecology of the species. A total of 5,726 P. variegata flies (96.4% males and 3.6% females, mostly gravid) were collected in field experiments during June–September of 2020 in an oak forest in northern Spain. Our results indicate that 1) by means of sweep netting a significantly higher number of captures were found both around the collector´s body and in the air than at ground level; 2) a positive relationship was detected between the abundance of Phortica flies and temperature, with two significant peaks of abundance at 24 and 33°C; 3) the blend of red wine and cider vinegar was the most attractive bait; 4) yellow traps captured fewer flies compared to black and transparent traps; and 5) a significant reduction toward vinegar and wine was detected in presence of the phenolic monoterpenoid carvacrol. In addition, all the males (n = 690) analyzed by both molecular detection and dissection resulted negative for the presence of T. callipaeda larvae. Overall, these findings provide a better understanding of the vector in terms of monitoring and management strategies.
|Appears in Collections:||Publicaciones del IMTSAG-UNIBE|
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