Analysis of the Inhibitory Effect of two Bacterial Strains on Metarhizium anisopliae Induced Fatality Rates in Protaetia Brevitarsis

Bacterial species, Bacillus amyloliquefaciens and Lactobacillus species (L. sp.5-1), are known to inhibit the growth of pathogenic bacteria and fungi. Metarhizium anisopliae is a pathogenic fungal species which causes fatal damage to P. brevitarsis populations. Therefore, we investigated the inhibit...

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Bibliographic Details
Published in:International Journal of Industrial Entomology 2018-09, Vol.37 (1), p.9-14
Main Authors: Kwak, Kyu-Won, Nam, Sung-Hee, Park, Kwan-Ho, Lee, Heuisam, Han, Myung-Sae
Format: Article
Language:Korean
Subjects:
Bacillus amyloliquefaciens
effective prevention
Lactobacillus sp. 5-1
Metarhizium anisopliae
Protaetia brevitarsis
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Summary:Bacterial species, Bacillus amyloliquefaciens and Lactobacillus species (L. sp.5-1), are known to inhibit the growth of pathogenic bacteria and fungi. Metarhizium anisopliae is a pathogenic fungal species which causes fatal damage to P. brevitarsis populations. Therefore, we investigated the inhibitory effect of B. amyloliquefaciens and L. sp. 5-1 on M. anisopliae induced fatality rates in P. brevitarsis. Samples of M. anisopliae -infected sawdust were treated with strain B. amyloliquefaciens KACC10116, strain L . sp. 5-1 KACC19351, and a combination of the two. P. brevitarsis were fed treated sawdust samples, and their subsequent fatality rate was monitored. The fatality rate fell below 1.5% after 10 days and decreased by approximately 40% after 15 days. On average, the fatality rate decreased by 20%, compared to the control. The difference in the decrease in fatality rate between B. amyloliquefaciens treatment and L . sp. 5-1 treatment was not significant. Results indicate that both strains exhibit high anti-fungal activity, which may be useful in environmental purification efforts. These strains may be used for effective prevention of fungal infection in P. brevitarsis.
ISSN:1598-3579