PRIMER REPORTE DE Spodoptera eridania (Stoll) (Lepidoptera: Noctuidae) EN EL CENTRO DE LA PROVINCIA DE SANTA FE

espanolEste trabajo reporta por primera vez la presencia de Spodoptera eridania (Stoll) en el centro de la Provincia de Santa Fe. Larvas del genero Spodoptera fueron recolectadas en un lote de soja Bt y trasladadas a la camara de cria (FCA-UNL), donde se obtuvo la primera generacion. Mediante claves taxonomicas se corroboro que la especie recolectada era S. eridania, plaga de origen tropical presente en el noroeste de Argentina, de habito polifago que ocasiona danos al alimentarse de hojas y frutos en formacion en varios cultivos de importancia economica. Ademas esta especie es tolerante a la proteina Bt y resistente a insecticidas de uso convencional. Al alimentar las larvas con hojas de soja Bt, completaron su ciclo biologico de manera exitosa. No existe informacion acerca del comportamiento de esta especie en el centro de la provincia de Santa Fe. EnglishThis work reports for the first time the presence of Spodoptera eridania (Stoll) in the central area of the Santa Fe province. Spodoptera larvae were collected from Bt soybean fields and were transferred to growth chambers (FCA-UNL), where the first generation was obtained. By larvae morphological analysis was confirmed that the species collected was S. eridania, pest of tropical origin and present in Argentina northwest. Is a polyphagous defoliator that feeds on several species of economic importance, with a high tolerance to the Cry1Ac protein, which is expressed in some Bt crops and is resistant to conventional insecticides. When the larvae were fed with Bt soybeans, they successfully completed their biological cycle. There is not information about the behavior of this species in the central area of the Santa Fe province.