Natural occurrence of entomophthoroid fungi of aphid pests on Medicago sativa L. in Argentina.
Four species of entomophthoroid fungi, Pandora neoaphidis (Entomophthorales: Entomophthoraceae), Zoophthora radicans (Entomophthorales: Entomophthoraceae), Entomophthora planchoniana (Entomophthorales: Entomophthoraceae) and Neozygites fresenii (Neozygitales: Neozygitaceae) were found to infect Aphis craccivora, Therioaphis trifolii, and Acyrthosiphon pisum and unidentified species of Acyrthosiphon on lucerne in Argentina. Samples were collected from five sites (Ceres, Rafaela, Sarmiento, Monte Vera and Bernardo de Irigoyen) in the province of Santa Fe. In this study, Zoophthora radicans was the most important pathogen and was recorded mainly on Acyrthosiphon sp. Zoophthora radicans was successfully isolated and maintained in pure cultures. This study is the first report of entomophthoroid fungi infecting lucerne (Medicago sativa L.) aphids in Argentina.
Instituto Nacional de Tecnología Agropecuaria (INTA), Área Investigación Agronomía, Protección Vegetal, Rafaela, Santa Fe, Argentina; CONICET, INTA, Rafaela, Santa Fe, Argentina. Electronic address: manfrino.romina@inta.gob.ar.
Romina G
RG
Manfrino
Instituto Nacional de Tecnología Agropecuaria (INTA), Área Investigación Agronomía, Protección Vegetal, Rafaela, Santa Fe, Argentina; CONICET, INTA, Rafaela, Santa Fe, Argentina.
Leticia
L
Zumoffen
Instituto Nacional de Tecnología Agropecuaria (INTA), Área Investigación Agronomía, Protección Vegetal, Rafaela, Santa Fe, Argentina.
César E
CE
Salto
Centro de Estudios Parasitológicos y de Vectores (CEPAVE), UNLP-CONICET, La Plata, Buenos Aires, Argentina.
Claudia C López
CC
Lastra
D000818:Animals; D001042:Aphids / Q000382:microbiology*; D001118:Argentina; D004773:Entomophthora / Q000302:isolation & purification; D020091:Entomophthorales / Q000302:isolation & purification*; D000455:Medicago sativa / Q000469:parasitology*; D009172:Mycology / Q000379:methods; D013045:Species Specificity
Alfalfa; Aphids; Entomopathogenic fungi; Hongos entomopatógenos; Lucerne; Áfidos