New records of two species of Toxotrypana (Diptera: Tephritidae) in Argentina

En este estudio se dan a conocer nuevos registros y se extiende la distribución geográfica de Toxotrypana australis Blanchard y T. nigra Blanchard en la Argentina.In this study are disclosed new records that extend the geographical distribution of Toxotrypana australis Blanchard and T. nigra Blanchard, in Argentina.Fil: Bertolaccini, Isabel. Universidad Nacional del LitoralFil: Castro, Damian. Universidad Nacional del LitoralFil: Curis, María Cecilia. Universidad Nacional del LitoralFil: Zucchi, Roberto A.. Escola Superior de Agricultura Luiz de Queiroz (Sao Paulo, Brasil). Departamento de Entomologia e Acarologi

A new genus and species of Eucoilinae (Hymenoptera, Cynipoidea, Figitidae) parasitoid of Euxesta eluta Loew (Diptera, Otitidae) attacked Bt sweet corn in Argentina

Euxestophaga Gallardo, a new genus of Eucoilinae (Hymenoptera, Cynipoidea, Figitidae) and Euxestophaga argentinensis Gallardo, sp. n. from Argentina, are described and illustrated. This new genus belongs to the Ganaspini and morphologically resembles Epicoela Borgmeier and Striatovertex Schick, Forshage and Nordlander. A key to differentiate these genera is given. Specimens were reared from pupae of Euxesta eluta Loew (Diptera: Otitidae), attacked Bt sweet corn in Santa Fe province and other in Tucumán province (Argentina).El material suplementario de este artículo puede accederse haciendo clic en "Documentos relacionados".Facultad de Ciencias Naturales y Muse

A new genus and species of Eucoilinae (Hymenoptera, Cynipoidea, Figitidae) parasitoid of Euxesta eluta Loew (Diptera, Otitidae) attacked Bt sweet corn in Argentina

Euxestophaga Gallardo, a new genus of Eucoilinae (Hymenoptera, Cynipoidea, Figitidae) and Euxestophaga argentinensis Gallardo, sp. n. from Argentina, are described and illustrated. This new genus belongs to the Ganaspini and morphologically resembles Epicoela Borgmeier and Striatovertex Schick, Forshage and Nordlander. A key to differentiate these genera is given. Specimens were reared from pupae of Euxesta eluta Loew (Diptera: Otitidae), attacked Bt sweet corn in Santa Fe province and other in Tucumán province (Argentina).El material suplementario de este artículo puede accederse haciendo clic en "Documentos relacionados".Facultad de Ciencias Naturales y Muse

A new genus and species of Eucoilinae (Hymenoptera, Cynipoidea, Figitidae) parasitoid of Euxesta eluta Loew (Diptera, Otitidae) attacked Bt sweet corn in Argentina

Euxestophaga Gallardo, a new genus of Eucoilinae (Hymenoptera, Cynipoidea, Figitidae) and Euxestophaga argentinensis Gallardo, sp. n. from Argentina, are described and illustrated. This new genus belongs to the Ganaspini and morphologically resembles Epicoela Borgmeier and Striatovertex Schick, Forshage and Nordlander. A key to differentiate these genera is given. Specimens were reared from pupae of Euxesta eluta Loew (Diptera: Otitidae), attacked Bt sweet corn in Santa Fe province and other in Tucumán province (Argentina)

A new genus and species of Eucoilinae (Hymenoptera, Cynipoidea, Figitidae) parasitoid of Euxesta eluta Loew (Diptera, Otitidae) attacked Bt sweet corn in Argentina

Fil: Gallardo, Fabiana Edith. División Entomología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Reche, Vanina Anadina. Universidad Nacional del Litoral. Esperanza; ArgentinaFil: Bertolaccini, Isabel. Universidad Nacional del Litoral. Esperanza; ArgentinaFil: Zárate, Brenda. División Entomología. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Curis, María Cecilia. Universidad Nacional del Litoral. Esperanza; Argentin

Diversity of carabids (order: coleoptera) and spiders (class: arachnida) in bt and conventional corn crops in the center of the province of Santa Fé, Argentina

El objetivo de este estudio fue cuantificar y comparar la diversidad de artrópodos benéficos de suelo de Coleopteros carabidae y del Orden Araneae, en cultivos de maíces Bt y convencionales. Anualmente se sembraron dos lotes de 1 ha, uno con maíz Bt y otro con maíz convencional, en la localidad de Pujato Norte, departamento Las Colonias, Santa Fe, Argentina, durante cinco campañas agrícolas (2005-2010). Para la captura de los artrópodos se utilizaron trampas de caída Pitfall, a razón de cuatro por lote. Los recuentos fueron semanales, desde la siembra hasta la cosecha. Se estimaron los siguientes índices ecológicos: abundancia relativa, diversidad de especies, equidad de Shannon, y se calculó el índice de Bray y Curtis para comparar las poblaciones de los dos cultivos. Las comparaciones se evaluaron mediante test no paramétrico de Mann-Whitney para datos apareados. No se hallaron diferencias en la diversidad ni en la abundancia de las especies de Carabidae y Araneae, ni en otras familias de artrópodos benéficos de suelo.The objective of this study was to quantify and compare the diversity of beneficial soil arthropods of Coleopteros carabidae and of the Araneae order, in conventional and Bt corn crops. Two plots of 1 ha were planted annually, one with Bt corn and another with conventional corn, in the town of Pujato Norte, department Las Colonias, Santa Fe, Argentina, between 2005 and 2010. Pitfall traps were used to capture arthropods at a capture rate of four per batch. Counts were conducted on weekly basis from sowing to harvest. The following ecological indices were estimated: relative abundance, species diversity and Shannon equity, while the Bray and Curtis index was calculated to compare the populations of the two crops. The comparisons were evaluated by a non-parametric Mann-Whitney test for paired data. No differences were found in the diversity or abundance of the Carabidae and Araneae species, or in other families of beneficial soil arthropods.Fil: Curis, Maria Cecilia. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; ArgentinaFil: Bertolaccini, Isabel. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; ArgentinaFil: Lutz, Alejandra. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; ArgentinaFil: Trod, María Amalia. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe; Argentin

Nuevos registros de dos especies de Toxotrypana (Diptera: Tephritidae) en la Argentina

In this study are disclosed new records that extend the geographical distribution of Toxotrypana australis Blanchard and T. nigra Blanchard, in Argentina.En este estudio se dan a conocer nuevos registros y se extiende la distribución geográfica de Toxotrypana australis Blanchard y T. nigra Blanchard en la Argentina

Postpartum depression; associated factors and underdiagnosis

Post-partum depression is one of the most severe types of depression and can be developed at any age, no matter of cultural of social status. Objectives. To determine the factors associated with the psychological impact of pregnancy and to emphasize the psychological and psychiatric risks after giving birth for a woman. Materials and Methods. The study enrolled 35 patients diagnosed with postpartum depression that have been hospitalized in a tertiary-care center for psychiatric disorders between 2016 and 2020. Data were collected from patients’ observation charts. Results. The incidence of postpartum depression is higher in the age range 30-45 years old for primiparous women who are from urban areas, unemployed and not integrated in a family (unbalanced families or single parents), with medium level of education (high school) and alcohol addiction. One of 35 patients committed infanticide. Conclusions. Even if the postpartum depression is known worldwide it is still underdiagnosed, with certain factors concurring to that. Postpartum depression requires the identification of risk conditions in pregnant women and individualized therapy in a patient-centered, holistic manner

A new genus and species of Eucoilinae (Hymenoptera, Cynipoidea, Figitidae) parasitoid of Euxesta eluta Loew (Diptera, Otitidae) attacked Bt sweet corn in Argentina

Euxestophaga Gallardo, a new genus of Eucoilinae (Hymenoptera, Cynipoidea, Figitidae) and Euxestophaga argentinensis Gallardo, sp. n. from Argentina, are described and illustrated. This new genus belongs to the Ganaspini and morphologically resembles Epicoela Borgmeier and Striatovertex Schick, Forshage and Nordlander. A key to differentiate these genera is given. Specimens were reared from pupae of Euxesta eluta Loew (Diptera: Otitidae), attacked Bt sweet corn in Santa Fe province and other in Tucumán province (Argentina).El material suplementario de este artículo puede accederse haciendo clic en "Documentos relacionados".Facultad de Ciencias Naturales y Muse

Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting dates

Euxesta sp. (corn-silk fly) is a highly polyphagous insect genus that affects horticultural crops, fruit trees, and industrial crops. It causes huge economic losses in sweet corn (maize). Damage is caused by larvae feeding on corn silk, kernels and the remainder of the cob. Chemical treatments applied to maize crops are often not effective; therefore, efforts to control the fly must focus on finding alternative methods, such as biological control. The aim of this work was to determine the effects of Euxestophaga argentinensis (Hymenoptera, Figitidae) parasitism on corn-silk fly larvae, in two different planting dates: late winter and late summer. Samples were taken during spring and autumn in a commercial Bt sweet corn for two consecutive years. A total of 20 ears of corn per sample were collected at random and were placed in plastic trays, stored at 22 ± 2°C and 70 ± 5% RH and exposed to a 14:10 h photoperiod. Euxesta eluta and Euxesta mazorca pupae were separated, placed in separate plastic vials and periodically checked for emergence of adult flies and parasitoids. E. eluta has greater potential to damage sweet corn crops than E. mazorca. Parasitism was higher in late winter than in late summer, while only E. eluta was parasitized.Euxesta spp. (mosca de la mazorca) es un género de insectos altamente polífagos que afectan los cultivos hortícolas, árboles frutales y cultivos industriales. En el maíz dulce causa altas pérdidas económicas. El daño es causado por la alimentación de la larva sobre los estigmas, granos y restos de la mazorca. Los tratamientos químicos aplicados a los cultivos del maíz frecuentemente no son efectivos, por lo tanto los esfuerzos en el control deben focalizarse en métodos alternativos, como el control biológico. El objetivo de este estudio fue determinar el efecto del parasitoide Euxestophaga argentinensis (Hymenoptera, Figitidae) sobre las larvas de la mosca, en dos épocas de siembra: fin de invierno y fin de verano, en lotes comerciales de maíz dulce Bt, en dos años consecutivos. Un total de 20 mazorcas de maíz por muestreo fueron recolectados al azar y se colocaron en bolsas plásticas herméticas y fueron mantenidos en laboratorio a 22 ± 2°C, 70 ± 5% RH y a 14:10 h de luz:oscuridad. Las pupas de E. eluta y E. mazorca fueron colocadas individualmente en tubos plásticos y revisados periódicamente hasta la emergencia del adulto de la mosca o del parasitoide. E. eluta tiene mayor potencial de daño que E. mazorca en los cultivos de maíz dulce. El parasitismo fue mayor en los cultivos sembrados en verano que en los de invierno tardío y solo E. eluta fue parasitada