Overwintering Migration of the Double-Spined Spruce Bark Beetle <i>Ips duplicatus</i> (Sahlberg, 1836) (Coleoptera; Curculionidae)
The double-spined bark beetle, <i>Ips duplicatus</i>, is an example of a species whose economic importance has increased in many European countries over the past decade. Many aspects of its life cycle remain unknown, complicating its management. <i>I. duplicatus</i> adults ov...
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MDPI AG
2023-01-01
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Series: | Forests |
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Online Access: | https://www.mdpi.com/1999-4907/14/1/131 |
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author | Markéta Davídková Lenka Kleinová Petr Doležal |
author_facet | Markéta Davídková Lenka Kleinová Petr Doležal |
author_sort | Markéta Davídková |
collection | DOAJ |
description | The double-spined bark beetle, <i>Ips duplicatus</i>, is an example of a species whose economic importance has increased in many European countries over the past decade. Many aspects of its life cycle remain unknown, complicating its management. <i>I. duplicatus</i> adults overwinter in forest litter, which makes the removal of infested trees during winter ineffective. Therefore, this study focuses on the mechanisms and timing of <i>I. duplicatus</i> overwintering migration into the forest litter. Only 2.2% of adult <i>I. duplicatus</i> overwintered under the bark of spruce logs stored outdoors from August 2016 to March 2017. In all, 94.4% of the beetles emerged and burrowed in forest litter. Migration began in late August, peaked in mid-September, and lasted until mid-October. At that time, forest litter collected at the base of an infested tree contained an average of 154.7 ± 23.9 <i>I. duplicatus</i>. Catches of migrating adults on glue stripes proved that the beetles walked down the trunk on days when the average daily temperature reached 10–15 °C. Based on the results, we suggest that trees infested with <i>I. duplicatus</i> that have completed their development into adults should be removed no later than September. Sanitation cutting in the following months is not effective against this pest. |
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issn | 1999-4907 |
language | English |
last_indexed | 2024-03-09T12:40:55Z |
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spelling | doaj.art-75c93c290a9a44c882b6d784b10f67522023-11-30T22:18:10ZengMDPI AGForests1999-49072023-01-0114113110.3390/f14010131Overwintering Migration of the Double-Spined Spruce Bark Beetle <i>Ips duplicatus</i> (Sahlberg, 1836) (Coleoptera; Curculionidae)Markéta Davídková0Lenka Kleinová1Petr Doležal2Biology Centre, Institute of Entomology, Czech Academy of Sciences, 37005 České Budějovice, Czech RepublicFaculty of Science, The University of South Bohemia in České Budějovice, 37005 České Budějovice, Czech RepublicBiology Centre, Institute of Entomology, Czech Academy of Sciences, 37005 České Budějovice, Czech RepublicThe double-spined bark beetle, <i>Ips duplicatus</i>, is an example of a species whose economic importance has increased in many European countries over the past decade. Many aspects of its life cycle remain unknown, complicating its management. <i>I. duplicatus</i> adults overwinter in forest litter, which makes the removal of infested trees during winter ineffective. Therefore, this study focuses on the mechanisms and timing of <i>I. duplicatus</i> overwintering migration into the forest litter. Only 2.2% of adult <i>I. duplicatus</i> overwintered under the bark of spruce logs stored outdoors from August 2016 to March 2017. In all, 94.4% of the beetles emerged and burrowed in forest litter. Migration began in late August, peaked in mid-September, and lasted until mid-October. At that time, forest litter collected at the base of an infested tree contained an average of 154.7 ± 23.9 <i>I. duplicatus</i>. Catches of migrating adults on glue stripes proved that the beetles walked down the trunk on days when the average daily temperature reached 10–15 °C. Based on the results, we suggest that trees infested with <i>I. duplicatus</i> that have completed their development into adults should be removed no later than September. Sanitation cutting in the following months is not effective against this pest.https://www.mdpi.com/1999-4907/14/1/131overwinteringsanitation cuttingbark beetlesforest protection |
spellingShingle | Markéta Davídková Lenka Kleinová Petr Doležal Overwintering Migration of the Double-Spined Spruce Bark Beetle <i>Ips duplicatus</i> (Sahlberg, 1836) (Coleoptera; Curculionidae) Forests overwintering sanitation cutting bark beetles forest protection |
title | Overwintering Migration of the Double-Spined Spruce Bark Beetle <i>Ips duplicatus</i> (Sahlberg, 1836) (Coleoptera; Curculionidae) |
title_full | Overwintering Migration of the Double-Spined Spruce Bark Beetle <i>Ips duplicatus</i> (Sahlberg, 1836) (Coleoptera; Curculionidae) |
title_fullStr | Overwintering Migration of the Double-Spined Spruce Bark Beetle <i>Ips duplicatus</i> (Sahlberg, 1836) (Coleoptera; Curculionidae) |
title_full_unstemmed | Overwintering Migration of the Double-Spined Spruce Bark Beetle <i>Ips duplicatus</i> (Sahlberg, 1836) (Coleoptera; Curculionidae) |
title_short | Overwintering Migration of the Double-Spined Spruce Bark Beetle <i>Ips duplicatus</i> (Sahlberg, 1836) (Coleoptera; Curculionidae) |
title_sort | overwintering migration of the double spined spruce bark beetle i ips duplicatus i sahlberg 1836 coleoptera curculionidae |
topic | overwintering sanitation cutting bark beetles forest protection |
url | https://www.mdpi.com/1999-4907/14/1/131 |
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