Attractiveness and Sexual Competitiveness of Anastrepha obliqua Males (Diptera: Tephritidae) Fed on a Diet Enriched With Providencia rettgeri

Periodo de realización: 1900/01/01 al 2020/01/01

Tipo: Artículo científico

Lugar(es) de estudio: Metapa de Domínguez, Chis., México, Tapachula de Córdova y Ordoñez, Chis., México
Resumen: "The West Indian fruit ?y, Anastrepha obliqua (Macquart), is the second most important tephritid fruit ?y in Mexico, infesting mango, hog plum and guava fruits. To control this pest, the Mexican government has implemented the use of the sterile insect technique (SIT), which involves the mass production, sterilization and release of ?ies. However, the A. obliqua laboratory males used in SIT are selected to a lesser extent by the wild females during competitiveness tests. The objective of this study was to compare the effects of males fed on fruit ?y food enriched with Providencia rettgeri to those in males fed on food alone, assessing male mating competitiveness, capture of females using traps baited with males fed with the enriched diet and sex pheromone components. The results indicated that males fed with the diet enriched with P. rettgeri had increased mating competitiveness and captured more females in the ?eld cage tests. However, no difference was observed in the proportion of volatile sex pheromone components identi?ed during the calling of A. obliqua males. The results suggest the value of incorporating bacteria into the mass rearing technique of A. obliqua adults in order to improve the sexual competitiveness of males from the laboratory compared to wild males."

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