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Susceptibility of three orthopteran species to infection by Metarhizium acridum (Hypocreales: Clavicipitaceae)

Published online by Cambridge University Press:  17 January 2018

Francisco Guilherme Vergolino Schmidt ,
Pâmela de Jesus Conceição ,
Norton Polo Benito  and
Rogerio Biaggioni Lopes
Francisco Guilherme Vergolino Schmidt
Affiliation:
EMBRAPA Genetic Resources and Biotechnology, 70849-970 Brasília, DF, Brazil
Pâmela de Jesus Conceição
Affiliation:
Federal University of Bahia Recôncavo, 44380-000 Cruz das Almas, BA, Brazil
Norton Polo Benito
Affiliation:
EMBRAPA Genetic Resources and Biotechnology, 70849-970 Brasília, DF, Brazil
Rogerio Biaggioni Lopes*
Affiliation:
EMBRAPA Genetic Resources and Biotechnology, 70849-970 Brasília, DF, Brazil
*
*E-mail: rogerio.lopes@embrapa.br
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Abstract

Outbreaks of three orthopteran species—Tropidacris collaris (Stoll), Cornops frenatum frenatum (Marschall) and Parascopas obesus (Giglio-Tos)—occurred in three different regions of Brazil during the summers of 2012 and 2013. Insects were observed causing severe damage in commercial crops and subsistence farming areas. In this study, the three species were shown to be susceptible to infection with an oil-based formulation of the fungus Metarhizium acridum under laboratory conditions. In this article, we briefly discuss insect mortality levels for each species and behavioural response to infection. This is the first report of the pathogenicity of the entomopathogenic fungus M. acridum to P. obesus, C. f. frenatum and T. collaris.

Keywords

Metarhizium acridumTropidacris collarisCornops f. frenatumParascopas obesusbiological control
Type
Short Communication
Information
International Journal of Tropical Insect Science , Volume 38 , Issue 2 , June 2018 , pp. 117 - 121
Copyright
Copyright © icipe 2018 

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