Natural occurrence of entomophthoroid fungi of aphid pests on Medicago sativa L. in Argentina

Abstract

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.

Morphological and Molecular Characterization of Entomophthorales (Entomophthoromycota: Entomophthoromycotina) from Argentina

“…It has been collected worldwide from hosts in the insect orders Lepidoptera, Diptera, Coleoptera, Orthoptera, Thysanoptera, Hemiptera, and Hymenoptera (Glare & Milner, 1991;Keller, 1991;Milner & Soper, 1981;Papierok et al, 1984;Soper & Ward, 1981). In Argentina, Z. radicans has been reported as a pathogen of several insect species (Manfrino, Hatting, et al, 2014;Manfrino et al, 2013;Manfrino, Zumoffen, et al, 2014;Scorsetti et al, 2006), but there were no records of dipteran hosts until this study. Milner and Mahon (1985) identified Z. radicans in other species of Diptera (Damaromyia sp., Sciaridae, Psychodidae) in Australia.…”

Southernmost records of Entomophtoromycotina. Updated review of Entomophthoralean fungal insect pathogens of Argentina

“…Scorsetti, R.G. Manfrino (LPSC 47466,LPSC47459,LPSC 47460) References: , 2012, Manfrino et al 2013, 2014a Reference: (Toledo et al 2008b). Description.…”

“…Batko Entomophthoralean fungi infecting insects have been studied and reported from all over the world (Eilenberg et al 1987, Keller 1987, Feng et al 1990, Eilenberg et al 1992, Bałazy 1993, Santamaría and Girbal 1996, Hatting et al 1999, Nielsen et al 2001, Pell et al 2001, Steinkraus and Boys 2005, Jensen et al 2009, Hajek et al 2012, Humber 2012, while this fungal group was poorly studied in South America (Aruta et al 1974, 1984, Delalibera et al 1992, Alzugaray et al 1999. The first Argentinean reference was published by Fresa (1979) but in the last decade, the number of publications about this fungal group has increased (Méndez-Sánchez et al 2001, 2002a, b, 2009, Delalibera et al 2004, Toledo et al 2007, 2008a, b, Jensen et al 2009, Alzugaray et al 2010, Scorsetti et al 2010, 2012, Sosa Gómez et al 2010, Manfrino et al 2013, 2014a, b, c, Montalva et al 2016a. The overall goal of this work is to follow this endeavor and further update the knowledge of Argentinean Entomophthoralean fungal species with new records that expanded their insect host range and their geographical distribution.…”

Species Diversity of Entomopathogenic Fungi Infecting the Sugarcane Aphid <i>Melanaphis sacchari</i>: A Recently Introduced Pest in Mexico

“…Worldwide, L. longisporum and L. lecanii have been reported causing epizooties in SCA populations [15] [19]. Other genera such as Beauveria, Isaria and several species of Entomophthorales can infect other species of aphids [16] [20]. Given the recent introduction of this pest in Mexico, it is important to look for species of fungi that are infecting this pest in the most important sorghum producing areas, in order to look for (in future works) candidates for their microbial control.…”