New bioassay method to assess the pathogenicity of Colombian strains of Metarhizium anisopliae (Metsch.) Sorokin and Paecilomyces sp. (Deuteromycotina: Hyphomycetes) against the subterranean burrower bug Cyrtomenus bergi Froeschner (Hemiptera: Cydnidae)

Publication Type

Journal Article

Journal Name

Journal of Invertebrate Pathology

Name of Author

Juliana Jaramillo, Gottfried Wilhelm Leibniz Universität Hannover
Christian Borgemeister, International Centre of Insect Physiology and Ecology Nairobi

Publication Date

1-1-2006

Abstract

Using a new sand bioassay method, the pathogenicity of three Colombian strains of Metarhizium anisopliae (i.e., CIAT 224, 245, and 230) and one strain of Paecilomyces sp. (CIAT 308) were tested against fourth instars of the subterranean burrower bug Cyrtomenus bergi Froeschner (Hem.: Cydnidae) in the laboratory. The proposed bioassay simulates the habitat of C. bergi and at the same time enables the evaluation of a large number of insects in a short period of time and under controlled conditions. All tested fungal species/strains were pathogenic against C. bergi. However, only low levels of mortality were obtained, and never exceeded 55%. In the screening experiment, M. anisopliae strains CIAT 224 and CIAT 245 caused the highest levels of mortality. The use of the bioassay procedure described herein is discussed. © 2005 Elsevier Inc. All rights reserved.

Keywords

Bioassay, Cyrtomenus bergi, Entomopathogenic fungi, Metarhizium anisopliae, Microbial control, Paecilomyces sp., Subterranean burrower bug

PubMed ID

16289545

Recommended Citation

Jaramillo, J., & Borgemeister, C. (2006). New bioassay method to assess the pathogenicity of Colombian strains of Metarhizium anisopliae (Metsch.) Sorokin and Paecilomyces sp. (Deuteromycotina: Hyphomycetes) against the subterranean burrower bug Cyrtomenus bergi Froeschner (Hemiptera: Cydnidae). Journal of Invertebrate Pathology, 91 (1), 57-60. https://doi.org/10.1016/j.jip.2005.09.003