title: Development of Anastrepha fraterculus (Diptera: Tephritidae) Related to the Phenology of Blueberry, Blackberry, Strawberry Guava, and Surinam Cherry Fruits.
abstract: Anastrepha fraterculus (Wiedemann, 1830) is the main pest of temperate climate orcharding. The study investigated the development of A. fraterculus related to phenological stage of blueberry, blackberry, strawberry guava, and Surinam cherry trees. The phenological stages I (green fruits), II (intermediate ripening stage of fruits), and III (fruits close to harvesting) were determined, and they are from 8th, 10th, and 11th week; 6th, 8th, and 9th week; 8th, 13th, and 16th week; and 5th, 6th, and 7th week after the first flowering of blueberry, blackberry, strawberry guava, and Surinam cherry trees, respectively. We collected fruits from orchards to determine the infestation index using the formula: number of pupa/fruit weight. To investigate the development of A. fraterculus, we determined the following biological parameters: egg-to-adult period, weight of pupae, oviposition period, fecundity, number of pupae, and number of infested fruits. The infestation index for the fruits collected in the field was greater in strawberry guava and Surinam cherry fruits. In the laboratory, the development of A. fraterculus occurred in stage III of blueberry. In blackberry, besides stage III, we also observed the development in stage II, however, at lower infestation. In strawberry guava, the development of A. fraterulus occurred in stages II and III, and the development in both stages was similar. For Surinam cherry, the development occurred in the three phenological stages with similar values for biological parameters. Overall, of the four hosts studied, the strawberry guava and Surinam cherry fruits allowed a better biological development of A. fraterculus, corroborating its preference for fruits native to Brazil.
authors.affiliation: Departamento de Fitossanidade, Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel, 96010-900 Pelotas, Rio Grande do Sul, Brazil. dori.edson-nava@embrapa.br.
authors.forename: M
authors.initials: M
authors.lastname: Bisognin
authors.affiliation: Laboratorio de Entomologia, Embrapa Clima Temperado, 96010-971 Pelotas, Rio Grande do Sul, Brazil. dori.edson-nava@embrapa.br.
authors.forename: D E
authors.initials: DE
authors.lastname: Nava
authors.affiliation: Laboratorio de Entomologia, Embrapa Clima Temperado, 96010-971 Pelotas, Rio Grande do Sul, Brazil.
authors.forename: G I
authors.initials: GI
authors.lastname: Diez-Rodríguez
authors.affiliation: Laboratorio de Entomologia, Embrapa Clima Temperado, 96010-971 Pelotas, Rio Grande do Sul, Brazil.
authors.forename: R A
authors.initials: RA
authors.lastname: Valgas
authors.affiliation: Departamento de Fitossanidade, Universidade Federal de Pelotas, Faculdade de Agronomia Eliseu Maciel, 96010-900 Pelotas, Rio Grande do Sul, Brazil.
authors.forename: M S
authors.initials: MS
authors.lastname: Garcia
authors.affiliation: Laboratorio de Entomologia, Embrapa Clima Temperado, 96010-971 Pelotas, Rio Grande do Sul, Brazil.
authors.forename: A C R
authors.initials: AC
authors.lastname: Krolow
authors.affiliation: Laboratorio de Entomologia, Embrapa Clima Temperado, 96010-971 Pelotas, Rio Grande do Sul, Brazil.
authors.forename: L E C
authors.initials: LE
authors.lastname: Antunes
mesh_terms: D000818:Animals; D029798:Blueberry Plants / Q000254:growth & development / Q000469:parasitology*; D005260:Female; D005638:Fruit / Q000254:growth & development / Q000469:parasitology*; D006790:Host-Parasite Interactions; D007814:Larva / Q000254:growth & development; D008297:Male; D031647:Psidium / Q000254:growth & development / Q000469:parasitology*; D027824:Rosaceae / Q000254:growth & development / Q000469:parasitology*; D033621:Tephritidae / Q000254:growth & development*
keywords: berry; biology; fruit fly; infestation season; native fruit