Susceptibility of Gyropsylla spegazziniana (Lizer & Trelles) (Hemiptera: Psyllidae) to Beauveria bassiana (Bals.) Vuill

Gyropsylla spegazziniana is one of the most prominent pest insects of yerba mate culture in all production regions in Brazil, Argentina and Paraguay. Natural enemies have been recorded on G. spegazziniana nymphs and adults, including the Zoophthora radicans entomopathogenic fungus. Since there are n...

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Detalles Bibliográficos
Autores principales: Alves, Luis Francisco, Formentini, Marina Andresa, Fanti, André Luis, Schapovaloff, María Elena, Barzotto, Ionete
Formato: Articulo Comunicacion
Lenguaje:Inglés
Publicado: 2013
Materias:
Biología
Ilex paraguariensis
Entomopathogenic fungi
Biological control
Fungos entomopatogênicos;
Controle biológico
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100960
https://ri.conicet.gov.ar/11336/27892
http://ref.scielo.org/sc34s9
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-100960
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Ilex paraguariensis
Entomopathogenic fungi
Biological control
Fungos entomopatogênicos;
Controle biológico
spellingShingle Biología
Ilex paraguariensis
Entomopathogenic fungi
Biological control
Fungos entomopatogênicos;
Controle biológico
Alves, Luis Francisco
Formentini, Marina Andresa
Fanti, André Luis
Schapovaloff, María Elena
Barzotto, Ionete
Susceptibility of Gyropsylla spegazziniana (Lizer & Trelles) (Hemiptera: Psyllidae) to Beauveria bassiana (Bals.) Vuill
topic_facet Biología
Ilex paraguariensis
Entomopathogenic fungi
Biological control
Fungos entomopatogênicos;
Controle biológico
description Gyropsylla spegazziniana is one of the most prominent pest insects of yerba mate culture in all production regions in Brazil, Argentina and Paraguay. Natural enemies have been recorded on G. spegazziniana nymphs and adults, including the Zoophthora radicans entomopathogenic fungus. Since there are no reports of Beauveria bassiana, the aim of this study was to register its pathogenicity with respect to this insect in a laboratory setting. Yerba mate branches were kept in glass flasks with water and we infested each leaf with 20 newly-emerged nymphs. We prepared three replicates per treatment. We sprayed conidia suspensions (1 × 10<sup>9</sup> conidia/mL) onto the branches, which we transferred to cages and kept in an acclimatized room (26 ± 1°C, 70 ± 10% of relative humidity (R.H.) with a photophase of 14 hours). We evaluated insect mortality daily, and after five days we observed a high level of pathogenicity due to the presence of the fungus, that could be visually observed on the cadaver. The total mortality varied from 25 to 70% (respectively for Unioeste 4 and CG 716) and the confirmed mortality was 30% for Unioeste 52, revealing the fungus’ potential. However, more studies are necessary in order to evaluate the strains of this fungus, as well as other species.
format Articulo
Comunicacion
author Alves, Luis Francisco
Formentini, Marina Andresa
Fanti, André Luis
Schapovaloff, María Elena
Barzotto, Ionete
author_facet Alves, Luis Francisco
Formentini, Marina Andresa
Fanti, André Luis
Schapovaloff, María Elena
Barzotto, Ionete
author_sort Alves, Luis Francisco
title Susceptibility of Gyropsylla spegazziniana (Lizer & Trelles) (Hemiptera: Psyllidae) to Beauveria bassiana (Bals.) Vuill
title_short Susceptibility of Gyropsylla spegazziniana (Lizer & Trelles) (Hemiptera: Psyllidae) to Beauveria bassiana (Bals.) Vuill
title_full Susceptibility of Gyropsylla spegazziniana (Lizer & Trelles) (Hemiptera: Psyllidae) to Beauveria bassiana (Bals.) Vuill
title_fullStr Susceptibility of Gyropsylla spegazziniana (Lizer & Trelles) (Hemiptera: Psyllidae) to Beauveria bassiana (Bals.) Vuill
title_full_unstemmed Susceptibility of Gyropsylla spegazziniana (Lizer & Trelles) (Hemiptera: Psyllidae) to Beauveria bassiana (Bals.) Vuill
title_sort susceptibility of gyropsylla spegazziniana (lizer & trelles) (hemiptera: psyllidae) to beauveria bassiana (bals.) vuill
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/100960
https://ri.conicet.gov.ar/11336/27892
http://ref.scielo.org/sc34s9
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