<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This study focused on bionomics of the ash bark beetle <italic>Hylesinus fraxin</italic>i (Panzer 1779). The study area was at Jílové u Prahy in the Central Bohemian Region of the Czech Republic. In February 2014, three common ash (<italic>Fraxinus excelsior</italic>) trees were felled and <italic>Hylesinus fraxini</italic> infestation was subsequently observed from March. Beetles were collected from 20 debarked logs and dissected under stereomicroscope, and their sex was determined. Five logs with bark beetles were placed into photoeclectors. Beetles that emerged were collected and put into the second photoeclector with fresh ash wood to determine whether they would establish the second generation. The analysis showed that each gallery system with a pair of bark beetles contained one male with only one female. If one adult of <italic>H. fraxini</italic> was found in the gallery system, it was usually female. Therefore, possible polygamy of <italic>Hylesinus fraxini</italic> was not confirmed in Central Bohemia. Maternal gallery length significantly correlated with the number of eggs laid per female. Offspring beetles did not establish the second generation, as only maturation feeding occurred in fresh wood.</p>
</abstract>

This study focused on bionomics of the ash bark beetle Hylesinus fraxini (Panzer 1779). The study area was at Jílové u Prahy in the Central Bohemian Region of the Czech Republic. In February 2014, three common ash (Fraxinus excelsior) trees were felled and Hylesinus fraxini infestation was subsequently observed from March. Beetles were collected from 20 debarked logs and dissected under stereomicroscope, and their sex was determined. Five logs with bark beetles were placed into photoeclectors. Beetles that emerged were collected and put into the second photoeclector with fresh ash wood to determine whether they would establish the second generation. The analysis showed that each gallery system with a pair of bark beetles contained one male with only one female. If one adult of H. fraxini was found in the gallery system, it was usually female. Therefore, possible polygamy of Hylesinus fraxini was not confirmed in Central Bohemia. Maternal gallery length significantly correlated with the number of eggs laid per female. Offspring beetles did not establish the second generation, as only maturation feeding occurred in fresh wood.

Contribution to bionomy of <italic>Hylesinus fraxini</italic> (Coleoptera: Curculionidae: Scolytinae) and its monogamy in the Czech Republic

Czech University of Life Sciences, Faculty of Forestry and Wood Sciences, Kamýcká 129, CZ – 165 21 Prague 6 - Suchdol, Czech Republic

Central European Forestry Journal

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Contribution to bionomy of  (Coleoptera: Curculionidae: Scolytinae) and its monogamy in the Czech Republic

This study focused on bionomics of the ash bark beetle Hylesinus fraxini (Panzer 1779). The study area was at Jílové u Prahy in the Central Bohemian Region of...

Contribution to bionomy of Hylesinus fraxini (Coleoptera: Curculionidae: Scolytinae) and its monogamy in the Czech Republic

Published Online: Feb 29, 2016

Page range: 240 - 245

DOI: https://doi.org/10.1515/forj-2015-0032

Keywords
common ash bark beetle, bionomics, polygamy, voltinism, Central Bohemia

© 2015 Karolina Lukášová et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Contribution to bionomy of Hylesinus fraxini (Coleoptera: Curculionidae: Scolytinae) and its monogamy in the Czech Republic

Published Online: Feb 29, 2016

Page range: 240 - 245

DOI: https://doi.org/10.1515/forj-2015-0032

Keywordscommon ash bark beetle, bionomics, polygamy, voltinism, Central Bohemia

© 2015 Karolina Lukášová et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
common ash bark beetle, bionomics, polygamy, voltinism, Central Bohemia