Entomopathogenic fungi of the genus Beauveria and their pathogenicity to Ips typographus (Coleoptera: Curculionidae) in the Vitosha National Park, Bulgaria

Ips typographus is a serious pest for forestry in Eurasia. Effective control is difficult due to its cryptic habits and insect pathogenic microorganisms, including entomopathogenic fungi that are believed to be a promising alternative to the traditional control measures of this pest. In 2018, divers...

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Main Authors: Marek Barta, Danail Takov, Daniela Pilarska, Danail Doychev, Miriam Kádasi Horáková
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2020-10-01
Series:Journal of Forest Science
Subjects:
Online Access:https://jfs.agriculturejournals.cz/artkey/jfs-202010-0003_entomopathogenic-fungi-of-the-genus-beauveria-and-their-pathogenicity-to-ips-typographus-coleoptera-curculion.php
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author Marek Barta
Danail Takov
Daniela Pilarska
Danail Doychev
Miriam Kádasi Horáková
author_facet Marek Barta
Danail Takov
Daniela Pilarska
Danail Doychev
Miriam Kádasi Horáková
author_sort Marek Barta
collection DOAJ
description Ips typographus is a serious pest for forestry in Eurasia. Effective control is difficult due to its cryptic habits and insect pathogenic microorganisms, including entomopathogenic fungi that are believed to be a promising alternative to the traditional control measures of this pest. In 2018, diversity of entomopathogenic fungi of the genus Beauveria was studied in populations of I. typographus in the Vitosha National Park, Bulgaria. Two species, B. bassiana and B. caledonica, were identified and 33 in vitro strains were obtained. Phylogenetic positions of the strains were evaluated according to phylogenetic inferences based on ITS and TEF-1α. Pathogenicity of the strains against bark beetles was tested in laboratory. All strains were pathogenic, although there was some variability in the efficacy of B. bassiana strains. Virulence of the five most pathogenic strains (four B. bassiana strains and one B. caledonica strain) was compared with the commercial mycoinsecticide Boverol® and highly-virulent B. bassiana strain ARSEF 12957 isolated from I. typographus in Slovakia. The strain from Boverol® was least virulent and the Slovak strain ARSEF 12957 was more efficient than the Bulgarian strains, but the difference was not significant. The laboratory experiments suggest that the Bulgarian strains have a potential for the control of bark beetle adults.
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spelling doaj.art-1bc3a5e274784119af33e84819534d792023-02-23T03:43:05ZengCzech Academy of Agricultural SciencesJournal of Forest Science1212-48341805-935X2020-10-01661042043510.17221/123/2020-JFSjfs-202010-0003Entomopathogenic fungi of the genus Beauveria and their pathogenicity to Ips typographus (Coleoptera: Curculionidae) in the Vitosha National Park, BulgariaMarek Barta0Danail Takov1Daniela Pilarska2Danail Doychev3Miriam Kádasi Horáková4Institute of Forest Ecology, Slovak Academy of Sciences, Nitra, Slovak RepublicInstitute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, BulgariaInstitute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, BulgariaUniversity of Forestry, Sofia, BulgariaInstitute of Forest Ecology, Slovak Academy of Sciences, Nitra, Slovak RepublicIps typographus is a serious pest for forestry in Eurasia. Effective control is difficult due to its cryptic habits and insect pathogenic microorganisms, including entomopathogenic fungi that are believed to be a promising alternative to the traditional control measures of this pest. In 2018, diversity of entomopathogenic fungi of the genus Beauveria was studied in populations of I. typographus in the Vitosha National Park, Bulgaria. Two species, B. bassiana and B. caledonica, were identified and 33 in vitro strains were obtained. Phylogenetic positions of the strains were evaluated according to phylogenetic inferences based on ITS and TEF-1α. Pathogenicity of the strains against bark beetles was tested in laboratory. All strains were pathogenic, although there was some variability in the efficacy of B. bassiana strains. Virulence of the five most pathogenic strains (four B. bassiana strains and one B. caledonica strain) was compared with the commercial mycoinsecticide Boverol® and highly-virulent B. bassiana strain ARSEF 12957 isolated from I. typographus in Slovakia. The strain from Boverol® was least virulent and the Slovak strain ARSEF 12957 was more efficient than the Bulgarian strains, but the difference was not significant. The laboratory experiments suggest that the Bulgarian strains have a potential for the control of bark beetle adults.https://jfs.agriculturejournals.cz/artkey/jfs-202010-0003_entomopathogenic-fungi-of-the-genus-beauveria-and-their-pathogenicity-to-ips-typographus-coleoptera-curculion.phpbeauveriabark beetlesnatural fungal infectionspruce forestsvirulence
spellingShingle Marek Barta
Danail Takov
Daniela Pilarska
Danail Doychev
Miriam Kádasi Horáková
Entomopathogenic fungi of the genus Beauveria and their pathogenicity to Ips typographus (Coleoptera: Curculionidae) in the Vitosha National Park, Bulgaria
Journal of Forest Science
beauveria
bark beetles
natural fungal infection
spruce forests
virulence
title Entomopathogenic fungi of the genus Beauveria and their pathogenicity to Ips typographus (Coleoptera: Curculionidae) in the Vitosha National Park, Bulgaria
title_full Entomopathogenic fungi of the genus Beauveria and their pathogenicity to Ips typographus (Coleoptera: Curculionidae) in the Vitosha National Park, Bulgaria
title_fullStr Entomopathogenic fungi of the genus Beauveria and their pathogenicity to Ips typographus (Coleoptera: Curculionidae) in the Vitosha National Park, Bulgaria
title_full_unstemmed Entomopathogenic fungi of the genus Beauveria and their pathogenicity to Ips typographus (Coleoptera: Curculionidae) in the Vitosha National Park, Bulgaria
title_short Entomopathogenic fungi of the genus Beauveria and their pathogenicity to Ips typographus (Coleoptera: Curculionidae) in the Vitosha National Park, Bulgaria
title_sort entomopathogenic fungi of the genus beauveria and their pathogenicity to ips typographus coleoptera curculionidae in the vitosha national park bulgaria
topic beauveria
bark beetles
natural fungal infection
spruce forests
virulence
url https://jfs.agriculturejournals.cz/artkey/jfs-202010-0003_entomopathogenic-fungi-of-the-genus-beauveria-and-their-pathogenicity-to-ips-typographus-coleoptera-curculion.php
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