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Mostrando ítems 1-8 de 8
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Bidirectional movement of aphid parasitoids (Braconidae: Aphidiinae) between crops and non-crop plants in agroecosystems of central Argentina
Zumoffen, Leticia; Signorini Porchiett, Marcelo Lisandro; Salvo, Silvia Adriana (2018-02)The movement of predators and parasitoids between natural and cultivated habitats is a common process in agroecosystems, which may be affected by different biotic and abiotic factors, mostly related to the availability of ... -
Diversidad y grupos funcionales de insectos en cultivos de arroz y sus bordes bajo manejo convencional y agroecológico en Santa Fe, Argentina
Ghiglione, Carla; Zumoffen, Leticia; Dalmazzo, Maria de los Milagros; Strasser, Ruth; Attademo, Andres M. (Asociación Argentina de Ecología, 2021-08)El arroz es el cereal de mayor producción considerado el alimento base para el 50% de la población mundial. Los objetivos del trabajo fueron i) conocer la diversidad de insectos que presentan los cultivos de arroz y sus ... -
Diversity and biological traits of bees visiting flowers of Cucurbita maxima var. zapallito differ between biodiversity-based and conventional management practices
Dalmazzo, Maria de los Milagros; Zumoffen, Leticia; Ghiglione, Carla; Roig-Alsina, Arturo; Chacoff, Natacha Paola (Springer Nature, 2024-01)Low diversity of pollinators and the modified composition of functional groups of bees have been proposed as the causes of pollination deficiency in cultivated Cucurbitaceae species. Functional groups of bees are determined ... -
Laboratory and field studies to evaluate the potential of an open rearing system of Lysiphlebus testaceipes for the control of Aphis craccivora in Argentina
Zumoffen, Leticia; Tavella, Julia Rita; Signorini, Marcelo; Salvo, Silvia Adriana (2016-02)The aim of this work was to examine, both in the field and in the laboratory, ecological aspects of selected plant–aphid–parasitoid interactions to evaluate their potential for the open rearing of the parasitoid Lysiphlebus ... -
Movimiento de parasitoides (Aphidiinae) para el biocontrol de áfidos plagas de afido en brasicaceas = Movement of parasitoids (Aphidiinae) for the biocontrol of aphids aphid pests in brasicaceas
Zumoffen, Leticia; Pacini, Adriana Cecilia; Merke, Julieta; Gatti, Mariano Adrián; Dalmazzo, Maria de los Milagros (Asociación Argentina de Horticultura, 2017)El objetivo de este estudio fue evaluar si los márgenes de vegetación espontánea aportan un ingreso de parasitoides (Aphidiinae) en los cultivos hortícolas y que factores afectan dicho movimiento. En la localidad de Ángel ... -
Natural occurrence of entomophthoroid fungi of aphid pests on Medicago sativa L. in Argentina = Ocurrencia natural de hongos entomophthorales de áfidos plaga de Medicago sativa L. en Argentina
Manfrino, Romina Guadalupe; Zumoffen, Leticia; Salto, Cesar Eduardo; Lopez Lastra, Claudia Cristina (2014-03)Four species of entomophthoroid fungi, Pandora neoaphidis (Entomophthorales: Entomophthoraceae), Zoophthora radicans (Entomophthorales: Entomophthoraceae), Entomophthora planchoniana (Entomophthorales: Entomophthoraceae) ... -
Preliminary study on parasitism of aphids (Hemiptera: Aphididae) in relation to characteristics of alfalfa fields (Medicago sativa L.) in the Argentine Pampas
Zumoffen, Leticia; Salto, Cesar Eduardo; Salvo, Silvia Adriana (Elsevier, 2012-09-12)Alfalfa is a perennial crop and is one of the most relevant forage resources for cattle in the Argentine Pampas, with aphids (Hemiptera Aphididae), one of the main pest insects in alfalfa, being frequently attacked by a ... -
Use of plants by Myzus persicae in agroecosystems: Potential applications in conservation biological control
Zumoffen, Leticia; Ghiglione, Carla; Signorini Porchiett, Marcelo Lisandro; Salvo, Silvia Adriana (Wiley, 2021-04)Myzus persicae (Sulzer) is a highly polyphagous aphid species that attacks several economically important crop plants. Here, trophic webs involving M. persicae, its host plants and its parasitoids were described and ...