First record of Steinernema diaprepesi (Steinernematidae) in Argentina

LAX, P.; DEL VALLE, E.; RONDAN DUEÑAS, J.; CACCIA, M.G.; GARDENAL, C. N.; DOUCET, M. E.

Coimbra

Congreso; XLIII Reunión Anual de la Organización de Nematólogos de los Trópicos Americanos (ONTA).; 2011

ONTA

To date, six Steinernema spp. have been reported in Argentina: S. carpocapsae, S. feltiae, S. glaseri, S. rarum, S. ritteri, and S. scapterisci. In a recent study, soil samples were collected from a carrot field in the locality of Santa Rosa de Calchines (Department of Garay, Santa Fe province). The insect- -baiting technique was used to recover entomopathogenic nematodes. One Steinernema isolate was recovered. This isolate was first diagnosed by morphological traits and was placed in the ?glaseri group?. Morphological and morphometric studies were supplemented with the molecular methods. Specifically sequence data of the ITS and 28S r DNA genes was considered. Generated sequences were compared with those known for other species of the glaseri-group. This is the first report of S. diaprepesi in Argentina.