title: Escape of Mexican Fruit Flies from Traps Baited with CeraTrap and Effect of Lure Feeding on Reproduction and Survival.
abstract: McPhail type traps are commonly used to catch tephritid pests using liquid baits as attractants. Unfortunately, these traps allow that some flies escape after feeding on the bait. Recently, a long-lasting and nontoxic enzymatic-hydrolyzed protein, known commercially as CeraTrap, has been introduced as a novel liquid bait. Because feeding on hydrolyzed proteins can improve reproduction in many tephritids, questions remain as to whether CeraTrap could provide a nutritious meal to flies that ingest the bait but escape the trap. In this study, we analyzed the efficacy of CeraTrap baited traps in capturing Anastrepha ludens flies of two different physiological states and two different diets. We also explored the effect of feeding on CeraTrap on the mating performance of males, ovarian development and fecundity of females and fly survival. Results demonstrated that CeraTrap attracted more protein-deprived and immature flies of both sexes and 2-30% of flies that entered the trap managed to escape. However, after feeding on the bait for 24 h, males exhibited lower mating success, longer latency to mate and longer copula durations than males fed on either sugar or sugar+ protein. Interestingly, females fed CeraTrap for 24 h developed ovaries as large as those females fed on sugar+ protein, however, they laid no eggs. When feeding continuously on CeraTrap, flies exhibited shorter lifespans and females laid no eggs. These findings indicate that, although some flies can ingest the bait and escape from the trap, their reproductive traits are negatively affected.
authors.affiliation: INBIOTECA, Universidad Veracruzana, Av. De las Culturas Veracruzanas 101, Col. Emiliano Zapata, Xalapa, Veracruz, C.P. 91090, Mexico.
authors.forename: Cruz
authors.initials: C
authors.lastname: Perea-Castellanos
authors.affiliation: INBIOTECA, Universidad Veracruzana, Av. De las Culturas Veracruzanas 101, Col. Emiliano Zapata, Xalapa, Veracruz, C.P. 91090, Mexico.
authors.forename: Diana
authors.initials: D
authors.lastname: Pérez-Staples
authors.affiliation: El Colegio de la Frontera Sur. Carretera Antiguo Aeropuerto Km 2.5, Tapachula, Chiapas, 30700 Mexico.
authors.forename: Pablo
authors.initials: P
authors.lastname: Liedo
authors.affiliation: INBIOTECA, Universidad Veracruzana, Av. De las Culturas Veracruzanas 101, Col. Emiliano Zapata, Xalapa, Veracruz, C.P. 91090, Mexico. fdiazfleischer@gmail.com.
authors.forename: Francisco
authors.initials: F
authors.lastname: Díaz-Fleischer
mesh_terms: D000818:Animals; D005260:Female; D008136:Longevity / Q000187:drug effects; D008297:Male; D008800:Mexico; D010572:Pest Control, Biological; D010675:Pheromones / Q000494:pharmacology*; D012098:Reproduction / Q000187:drug effects; D033621:Tephritidae / Q000187:drug effects* / Q000502:physiology*
chemical_list: D010675:Pheromones; C010411:insect attractants
keywords: Anastrepha ludens; attraction; bait; feeding; tephritidae