DBPapers
DOI: 10.5593/SGEM2015/B32/S14.074

THE EFFICIENCY OF CHOSEN ENTOMOPATHOGENIC FUNGI ON MORTALITY OF PINE WEEVIL HYLOBIUS ABIETIS L.

M. Pavlik, J. Kmet, J. Galko, M. Lalik
Thursday 24 September 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-37-7 / ISSN 1314-2704, June 18-24, 2015, Book3 Vol. 2, 551-560 pp

ABSTRACT
European coniferous forests are attacked by various harmful factors in recent decades. The windstorms usually result in destroyed large complexes of spruce, fir or pine stands. After processing of such calamities, large areas for afforestation appear, making very good conditions for pine weevil presence. It is a beetle causing a lot of damage by eating bark of the trunks of young seedlings, thereby causing a weakening or their dieback. Actual research is focused on study of reactions of the pine weevil adult (Hylobius abietis L.) (Coleoptera: Curculionidae) to infection caused by chosen entomopathogenic fungi species (Beauveria bassiana, Metarhizium anisopliae, Isaria fumusorosea).
The aim of our research was to evaluate the biological activity of chosen entomopathogenic fungi on adults of pine weevil and to evaluate survival and food intake by infected imago. Mortality of pine weevil has increased by fungus Beauveria bassiana, and good efficacy in this regard proved fungus Metarhizium anisopliae. Isaria fumusorosea had almost no effect on their mortality rate. Infected adults took significantly less food than uninfected ones. The most significant effect in reducing of food intake has fungus Beauveria bassiana. Metarhizium anisopliae had no effect on food intake.

Keywords: Hylobius abietis, entomopathogenic fungi, Beauveria bassiana

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