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Mostrando ítems 1-17 de 17
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Analysis of the gut bacterial community of wild larvae of Anastrepha fraterculus sp. 1: effect of host fruit, environment, and prominent stable associations of the genera Wolbachia, Tatumella, and Enterobacter
Salgueiro, Julieta; Nussenbaum, Ana Laura; Milla, Fabian Horacio; Asimakis, Elias D.; Goane, Lucía; Ruiz, María Josefina; Bachmann, Guillermo Enrique; Vera, María Teresa; Stathopoulou, Panagiota; Bourtzis, Kostas; Deutscher, Ania T.; Lanzavecchia, Silvia Beatriz; Tsiamis, George; Segura, Diego Fernando (Frontiers Media, 2022-03)The genus Anastrepha (Diptera Tephritidae) includes some of the most important fruit fly pests in the Americas. Here, we studied the gut bacterial community of 3rd instar larvae of Anastrepha fraterculus sp. 1 through Next ... -
Associative learning of visual cues in the fruit fly parasitoid Diachasmimorpha longicaudata : temporal dynamics and potential consequences on females' fitness
Nussenbaum, Ana Laura; Devescovi, Francisco; Bachmann, Guillermo Enrique; Pacelli, Franco; Garbalena, Micaela Soledad; Segura, Diego Fernando (Wiley, 2024-01)Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae) is a generalist larval-prepupal parasitoid of true fruit flies (Diptera: Tephritidae). During host-seeking, females use visual information to locate the ... -
Claves olfativas implicadas en la orientación del parasitoide Diachasmimorpha longicaudata hacia sus hospedadores
Devescovi, Francisco; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Fernández, Patricia; Segura, Diego Fernando (Sociedad Entomológica del Perú, 2022-11)Objetivos: Evaluar el comportamiento de anemotaxis de Diachasmimorpha longicaudata hacia fuentes con presencia potencial de hospedadores. Identificar compuestos orgánicos volátiles provenientes de dichas fuentes que actúen ... -
Direct and indirect host-related volatile compounds attract a fruit fly parasitoid, Diachasmimorpha longicaudata
Devescovi, Francisco; Fernández, Patricia; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Segura, Diego Fernando (Wiley, 2024-02)Fruit fly pests (Diptera: Tephritidae) are a serious problem for fruit production and for local and international trade. Biological control is increasingly included as a pest control tool within integrated pest management ... -
Effect of Fruit Volatiles from Native Host Plants on the Sexual Performance of Anastrepha fraterculus sp. 1 Males
Bachmann, Guillermo Enrique; Belliard, Silvina Ahnahi; Devescovi, Francisco; Nussenbaum, Ana Laura; Fernández, Patricia Carina; Vera, María Teresa; Ruiz, María Josefina; Segura, Diego Fernando (MDPI, 2023-02)Anastrepha fraterculus sp.1 males are sexually stimulated by the aroma of fruit of its native host Psidium guajava (guava). Other hosts, which are exotic to A. fraterculus, do not enhance male sexual behavior. Here we ... -
Effects of superparasitism on immature and adult stages of Diachasmimorpha longicaudata Ashmead (Hymenoptera: Braconidae) reared on Ceratitis capitata Wiedemann (Diptera: Tephritidae)
Devescovi, Francisco; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Viscarret, Mariana Mabel; Cladera, Jorge Luis; Segura, Diego Fernando (2017)The optimal use of available host by parasitoid insects should be favoured by natural selection. For solitary parasitoids, superparasitism (i.e. the egg-laying of several eggs/host) may represent a detrimental phenomenon ... -
Evaluating mating compatibility within fruit fly cryptic species complexes and the potential role of sex pheromones in pre-mating isolation
Juárez, María Laura; Devescovi, Francisco; Břízová, Radka; Bachmann, Guillermo Enrique; Segura, Diego Fernando; Kalinová, Blanka; Fernandez, Patricia; Ruiz, María Josefina; Yang, Jianquan; Teal, Peter E. A.; Caceres, Carlos; Vreysen, Marc J. B.; Hendrichs, Jorge; Vera, María Teresa (Pensoft Publishers, 2015-11)The study of sexual behavior and the identification of the signals involved in mate recognition between con-specifics are key components that can shed some light, as part of an integrative taxonomic approach, in delimitating ... -
Fruit infestation patterns by Anastrepha fraterculus and Ceratitis capitata reveal that cross-recognition does not lead to complete avoidance of interspecific competition in nature
Devescovi, Francisco; Liendo, María Clara; Bachmann, Guillermo Enrique; Bouvet, Juan Pedro; Milla, Fabian Horacio; Vera, María Teresa; Cladera, Jorge Luis; Segura, Diego Fernando (Wiley, 2015-08)1. The avoidance of parasitized or infested hosts, which is a common phenomenon in parasitic wasps and phytophagous insects, may act both intra- and interspecifically. Most studies on chemically-mediated avoidance of ... -
Host discrimination in the fruit fly parasitoid Diachasmimorpha longicaudata : evidence from virgin female behaviour and egg distribution patterns
Devescovi, Francisco; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Viscarret, Mariana Mabel; Cladera, Jorge Luis; Segura, Diego Fernando (Cambridge University Press, 2021-04)Many parasitoid species discriminate already parasitized hosts, thus avoiding larval competition. However, females incur in superparasitism under certain circumstances. Superparasitism is commonly observed in the artificial ... -
Identificación de claves químicas utilizadas por el parasitoide Diachasmimorpha longicaudata Hymenoptera : Braconidae ) para el encuentro de su hospedador
Devescovi, Francisco; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Fernández, Patricia; Segura, Diego Fernando (Universidad Nacional de La Plata, 2022-10)Objetivos: Evaluar el comportamiento de anemotaxis de Diachasmimorpha longicaudata hacia fuentes con presencia potencial de hospedadores. Identificar compuestos orgánicos volátiles provenientes de dichas fuentes que actúen ... -
Innate Host Habitat Preference in the Parasitoid Diachasmimorpha longicaudata: Functional Significance and Modifications through Learning
Segura, Diego Fernando; Nussenbaum, Ana Laura; Viscarret, Mariana Mabel; Devescovi, Francisco; Bachmann, Guillermo Enrique; Corley, Juan Carlos; Ovruski Alderete, Sergio Marcelo; Cladera, Jorge Luis (2016)Parasitoids searching for polyphagous herbivores can find their hosts in a variety of habitats. Under this scenario, chemical cues from the host habitat (not related to the host) represent poor indicators of host location. ... -
Lemon and Schinus polygama essential oils enhance male mating success of Anastrepha fraterculus
Ruiz, María Josefina; Suárez, María L.; Jofré Barud, Flavia; Goane, Lucía; Valladares, Gabriela A.; Bachmann, Guillermo Enrique; Belliard, Silvina Ahnahi; Páez Jerez, Paula; Zamora Belli, Ana Lucía; García Méndez, F. Daniela; Segura, Diego Fernando; Lopez, María Liza; Vera, María Teresa (Wiley, 2020-11-27)The sterile insect technique (SIT) is an environmentally friendly pest control method that relies on the introduction of sterility into the pest population by the release of sterile males. Many Tephritidae fruit fly pests ... -
Male Sexual Behavior and Pheromone Emission Is Enhanced by Exposure to Guava Fruit Volatiles in Anastrepha fraterculus
Bachmann, Guillermo Enrique; Segura, Diego Fernando; Devescovi, Francisco; Juárez, María Laura; Ruiz, María Josefina; Vera, María Teresa; Cladera, Jorge Luis; Teal, Peter E.A.; Fernandez, Patricia Carina (Plos One, 2015-04)Background: Plant chemicals can affect reproductive strategies of tephritid fruit flies by influencing sex pheromone communication and increasing male mating competitiveness. Objective and Methodology: We explored whether ... -
Male sexual enhancement after methoprene treatment in Anastrepha fraterculus (Diptera: Tephritidae) : a sustained response that does not fade away after sexual maturation
Bachmann, Guillermo Enrique; Devescovi, Francisco; Nussenbaum, Ana Laura; Cladera, Jorge Luis; Fernandez, Patricia Carina; Vera, María Teresa; Teal, Peter E.A.; Segura, Diego Fernando (2017)The juvenile hormone (JH) of insects triggers physiological changes related to reproduction in adults of both sexes. Methoprene is a sesquiterpene with some effects that are analogous to those of JH. Treatments with ... -
Mate choice confers direct benefits to females of Anastrepha fraterculus (Diptera: Tephritidae)
Bachmann, Guillermo Enrique; Devescovi, Francisco; Nussenbaum, Ana Laura; Milla, Fabian Horacio; Shelly, Todd E.; Cladera, Jorge Luis; Fernandez, Patricia; Vera, María Teresa; Segura, Diego Fernando (Public Library of Science, 2019-06)Exposure to plant compounds and analogues of juvenile hormone (JH) increase male mating success in several species of tephritid fruit flies. Most of these species exhibit a lek mating system, characterized by active female ... -
Plant chemicals and the sexual behavior of male tephritid fruit flies
Segura, Diego Fernando; Belliard, Silvina Ahnahi; Vera, María Teresa; Bachmann, Guillermo Enrique; Ruiz, María Josefina; Jofre-Barud, Flavia; Fernandez, Patricia Carina; Lopez, M. Liza; Shelly, Todd E. (Oxford University Press, 2018-09)Plant compounds affect insects in many different ways. In addition to being a food source, plants also contain secondary metabolites that may have positive and negative impacts on insects. The influence of these compounds ... -
Unravelling chemical cues used by Diachasmimorpha longicaudata (Hymenoptera: Braconidae ) during host search
Devescovi, Francisco; Fernández, Patricia; Bachmann, Guillermo Enrique; Nussenbaum, Ana Laura; Segura, Diego Fernando (FAO-IAEA, 2022-11)Parasitoid wasps are attracted to their hosts using associated volatile compounds. In an static air olfactometer, it was shown that Diachasmimorpha longicaudata females oriented towards oranges with direct or indirect signs ...