Susceptibility of Adult Aethina tumida (Coleoptera: Nitidulidae) to Entomopathogenic Fungi

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Abstract:

Aethina tumida Murray (Coleoptera: Nitidulidae) is an invasive parasite species in populations of honey bees, Apis mellifera L. Aiming toward substitution of chemical control, we here identified a naturally occurring fungal pathogen of adult A. tumida from its endemic range in South Africa [Metarhizium anisopliae (Metschnikoff) Sorokin variety anisopliae strain FI-203]. The susceptibility of adult beetles (n = 400) to this fungus and to three other generalist entomopathogenic fungal isolates [Metarhizium anisopliae, Beauveria bassiana (Balsamo) Vuillemin, and Hirsutella illustris Minter & Brady] was assessed using spore suspension bioassays. The data revealed significantly increased mortality in the B. bassiana (74.00 ± 8.94%) and M. anisopliae variety anisopliae (28.00 ± 16.43%) tests but not in the H. illustris (2.00 ± 4.47%) and M. anisopliae (12.00 ± 8.37%) groups. The results indicate a potential for entomopathogenic fungi as an alternative control of A. tumida.

Keywords: Aethina tumida; Apis mellifera; biological control; entomopathogenic fungi

Document Type: Research Article

DOI: http://dx.doi.org/10.1603/0022-0493(2006)099[0001:SOAATC]2.0.CO;2

Publication date: February 1, 2006

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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