Entomopathogenic fungi in cornfields and their potential to manage larval western corn rootworm Diabrotica virgifera virgifera

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Date
2013-11-01
Authors
Rudeen, Melissa
Jaronski, Stefan
Gassmann, Aaron
Petzold-Maxwell, Jennifer
Gassmann, Aaron
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Entomology
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Entomology
Abstract

Entomopathogenic ascomycete fungi are ubiquitous in soil and on phylloplanes, and are important natural enemies of many soil-borne arthropods including larval western corn rootworm, Diabrotica virgifera virgifera, which is a major pest of corn. We measured the prevalence of Beauveria bassiana andMetarhizium anisopliae sensu lato in ten cornfields in Iowa, USA by baiting with larval insects. B. bassianaand M. anisopliae s.l. were present in 60% ± 6.3% and 55% ± 6.4% of soil samples, respectively. Subsequent laboratory bioassays found that some M. anisopliae s.l. strains collected from cornfields killed a greater proportion of D.v. virgifera larvae than a standard commercial strain.

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This article is from Journal of Invertebrate Pathology 114 (2013): 329, doi:10.1016/j.jip.2013.09.009.

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