Oviposição de Ceratitis capitata (Diptera : Tephritidae) em Coffea arabica e Coffea canephora

• Ano de defesa: 2009
• Autor(a) principal: Souza, Silvana Aparecida da Silva
• Orientador(a): Lima, Eraldo Rodrigues de
• Banca de defesa: Bacci, Leandro , Venzon, Madelaine , Picanço, Marcelo Coutinho
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Entomologia
• Departamento: Ciência entomológica; Tecnologia entomológica
• País: BR
• Palavras-chave em Português: Ceratitis capitata; Coffea arabica; Coffea canephora; Oviposição
• Palavras-chave em Inglês: Ceratitis capitata; Coffea arabica; Coffea canephora; Oviposition
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOSSANIDADE::ENTOMOLOGIA AGRICOLA
• Link de acesso: http://locus.ufv.br/handle/123456789/3912

The behavior meeting and selection of host plants is a matter of great importance in the study of insect-plant interactions. The triggering of such conduct takes place through a set of physical and chemical signals emitted by plants. Chemical signals to attract insects and allow them to recognize the host plant, while the physical characteristics are encouraging initiatives to guide the insect to the host fruit. The Mediterranean fruit fly Ceratitis capitata explores a range of host plants and at the time of laying their choices are mediated by physical signs. C. capitata explores a range of host plants and has been reported frequently in cultures of Coffea arabica in different regions of the world. The females appear in the coffee plantations in the early stage of grain maturity, attacking mainly ripe fruits. In Brazil, has assumed great economic importance in coffee plantations of C. arabica of Bahia. However, in coffee plantations of Coffea canephora has not been reported and rejection or acceptance of fruits for oviposition of C. capitata. The objective was to obtain information on laboratory and field conditions on the oviposition of C. capitata in varieties of C. arabica and varieties of C. canephora. We assessed the preference of oviposition C. capitata among varieties of C. arabica and C. canephora, and combinations of varieties of C. arabica with those of C. canephora. Also were assessed effect of diameter and thickness of the shell of the fruits of C. arabica and C. canephora in the oviposition of C. capitata. Females of C. capitata showed no oviposition preference among varieties of C. arabica. Females showed a preference between the varieties of C. canephora, albeit with lower deposition of eggs in the fruit. The combinations of the varieties of C. arabica with varieties C. canephora highest average of eggs were obtained in the varieties of C. arabica. Therefore, one may conclude that the fruits of C. canephora were resistant to attack by C. capitata. The thickness of the peel of fruits of C. arabica and C. canephora influenced the deposition of eggs in the rosettes. With increasing shell thickness decreases the average number of eggs in the rosettes. The thickness of the peel of fruits of C. arabica had greater acceptability for oviposition of C. capitata. The diameter of the fruits of C. arabica and C. canephora influence the number of eggs deposited in rosettes. According, increases the diameter, increases the average number of eggs in the rosettes.