First record of <i>Fusarium verticillioides</i> as an entomopathogenic fungus of grasshoppers

Fusarium verticillioides (Saccardo) Nirenberg (Ascomycota: Hypocreales) is the most common fungus reported on infected corn kernels and vegetative tissues, but has not yet been documented as being entomopathogenic for grasshoppers. Grasshoppers and locusts represent a large group of insects that cau...

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Autores principales: Pelizza, Sebastián Alberto, Stenglein, Sebastián Alberto, Cabello, Marta Noemí, Dinolfo, María Inés, Lange, Carlos Ernesto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Botánica
Acrididae
Argentina
Chaco Province
Orthoptera
Ronderosia bergi
Tropidacris collaris
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84169
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84169
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Botánica
Acrididae
Argentina
Chaco Province
Orthoptera
Ronderosia bergi
Tropidacris collaris
spellingShingle Botánica
Acrididae
Argentina
Chaco Province
Orthoptera
Ronderosia bergi
Tropidacris collaris
Pelizza, Sebastián Alberto
Stenglein, Sebastián Alberto
Cabello, Marta Noemí
Dinolfo, María Inés
Lange, Carlos Ernesto
First record of <i>Fusarium verticillioides</i> as an entomopathogenic fungus of grasshoppers
topic_facet Botánica
Acrididae
Argentina
Chaco Province
Orthoptera
Ronderosia bergi
Tropidacris collaris
description Fusarium verticillioides (Saccardo) Nirenberg (Ascomycota: Hypocreales) is the most common fungus reported on infected corn kernels and vegetative tissues, but has not yet been documented as being entomopathogenic for grasshoppers. Grasshoppers and locusts represent a large group of insects that cause economic damage to forage and crops. Tropidacris collaris (Stoll) (Orthoptera: Acridoidea: Romaleidae) is a large and voracious grasshopper that in recent years has become an increasingly recurrent and widespread pest in progressively more greatly extended areas of some of in Argentina's northern provinces, with chemical insecticides being currently the only means of control. During February and March of 2008-09, nymphs and adults of T. collaris were collected with sweep nets in dense woodland vegetation at a site near Tres Estacas in western Chaco Province, Argentina, and kept in screened cages. F. verticillioides was isolated from insects that died within 10 days and was cultured in PGA medium. Pathogenicity tests were conducted and positive results recorded. Using traditional and molecular-biological methods, an isolate of F. verticillioides was obtained from T. collaris, and its pathogenecity in the laboratory was shown against another harmful grasshopper, Ronderosia bergi (Stål) (Acridoidea: Acrididae: Melanoplinae). The mortality caused by F. verticillioides on R. bergi reached 58 ± 6.53% by 10 days after inoculation. This is the first record of natural infection caused by F. verticillioides in grasshoppers.
format Articulo
Articulo
author Pelizza, Sebastián Alberto
Stenglein, Sebastián Alberto
Cabello, Marta Noemí
Dinolfo, María Inés
Lange, Carlos Ernesto
author_facet Pelizza, Sebastián Alberto
Stenglein, Sebastián Alberto
Cabello, Marta Noemí
Dinolfo, María Inés
Lange, Carlos Ernesto
author_sort Pelizza, Sebastián Alberto
title First record of <i>Fusarium verticillioides</i> as an entomopathogenic fungus of grasshoppers
title_short First record of <i>Fusarium verticillioides</i> as an entomopathogenic fungus of grasshoppers
title_full First record of <i>Fusarium verticillioides</i> as an entomopathogenic fungus of grasshoppers
title_fullStr First record of <i>Fusarium verticillioides</i> as an entomopathogenic fungus of grasshoppers
title_full_unstemmed First record of <i>Fusarium verticillioides</i> as an entomopathogenic fungus of grasshoppers
title_sort first record of <i>fusarium verticillioides</i> as an entomopathogenic fungus of grasshoppers
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/84169
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