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Parasitic wasps (Hymenoptera) of the European oak bark beetle larvae (Scolytus intricatus Ratz., Coleoptera: Scolytidae)

The purpose of the paper was to determine the species composition of parasitic wasps (parasitoids) and to find out the percentage of parasitization of the European oak bark beetle (Scolytus intricatus Ratz.) larvae. Parasitoids were gathered by means of photoeclectors from 96 samples of Quercus dale...

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Published in:Central European forestry journal 2009-01, Vol.55 (1), p.1-12
Main Authors: Galko, Juraj (Národné lesnícke centrum-Lesnícky výskumný ústav Zvolen, Stredisko lesníckej ochranárskej služby, Lesnícka 11, SK-969 23 Banská Štiavnica), Pavlík, Štefan (Technická univerzita vo Zvolene, Lesnícka fakulta, T. G. Masaryka 20, SK-960 53 Zvolen)
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creator Galko, Juraj (Národné lesnícke centrum-Lesnícky výskumný ústav Zvolen, Stredisko lesníckej ochranárskej služby, Lesnícka 11, SK-969 23 Banská Štiavnica)
Pavlík, Štefan (Technická univerzita vo Zvolene, Lesnícka fakulta, T. G. Masaryka 20, SK-960 53 Zvolen)
description The purpose of the paper was to determine the species composition of parasitic wasps (parasitoids) and to find out the percentage of parasitization of the European oak bark beetle (Scolytus intricatus Ratz.) larvae. Parasitoids were gathered by means of photoeclectors from 96 samples of Quercus dalechampii Ten. and from 96 samples of Quercus cerris L. Logs were sampled in eight forest stands in the surroundings of Tren _ín and Bánovce nad Bebravou (western Slovakia) during two years (2006 and 2007). Altogether we determined 14 species of parasitoids belonging to four families (Braconidae, Eurytomidae, Pteromalidae, Eulophidae). The Eulophidae chalcidoid wasps predominated whereas of them the chalcidoid wasp Entodon leucogramma was the most important natural enemy of the European oak bark beetle (dominance 45.7% in 2006 and 54.1% in 2007 of all parasitoids emerged). The braconid Dendrosoter protuberans was the second most dominant species (dominance 13.7% in 2006 and 24.2% in 2007 of all parasitoids emerged). Larvae of the European oak bark beetle developing in the logs of Quercus dalechampii were parasitized more heavily than those in the logs of Quercus cerris (average parasitization rate 25.7-32.7% vs. 18.4-24.5%, respectively). Larvae were more parasitized in 2006 than in 2007 (27.0-33.4% vs. 17.2-23.8%, respectively). The paper presents an overview of parasitoids of the European oak bark beetle, which represent one of the most important bioregulative factors in its populations. Cieľom výskumu bolo ur _iť druhé spektrum parazitoidov a ur _iť percento parazitácie na larvách podkôrnika dubového (Scolytus intricatus). Parazitoidy boli získané pomocou fotoeklektorov z 96 vzoriek duba žltkastého (Quercus dalechampii) a z 96 vzoriek duba cerového (Quercus cerris). Vzorky boli odoberané z dubových porastov v okolí Tren _ína a Bánoviec nad Bebravou po _as dvoch rokov (2006 a 2007). Celkovo bolo ur _ených 14 druhov parazitoidov patriacich do štyroch _eľadí (Braconidae, Eurytomidae, Pteromalidae, Eulophidae). Čeľa _ chalcidiek Eulophidae bola predominantná, z nich bola chalcidka Entedon leucogramma najvýznamnejší prirodzený hmyzí nepriateľ podkôrnika dubového (dominancia 45,7% v roku 2006 a 54,1% v roku 2007 zo všetkých odchytených parazitoidov). Lum _ík Dendrosoter protuberans bol druhý najviac dominantný druh (dominancia 13,7% v roku 2006 a 24,2% v roku 2007 zo všetkých parazitoidov). Larvy podkôrnika dubového vyvíjajúce sa vo vzorkách duba žltkastého boli viac
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G. Masaryka 20, SK-960 53 Zvolen)</creator><creatorcontrib>Galko, Juraj (Národné lesnícke centrum-Lesnícky výskumný ústav Zvolen, Stredisko lesníckej ochranárskej služby, Lesnícka 11, SK-969 23 Banská Štiavnica) ; Pavlík, Štefan (Technická univerzita vo Zvolene, Lesnícka fakulta, T. G. Masaryka 20, SK-960 53 Zvolen)</creatorcontrib><description>The purpose of the paper was to determine the species composition of parasitic wasps (parasitoids) and to find out the percentage of parasitization of the European oak bark beetle (Scolytus intricatus Ratz.) larvae. Parasitoids were gathered by means of photoeclectors from 96 samples of Quercus dalechampii Ten. and from 96 samples of Quercus cerris L. Logs were sampled in eight forest stands in the surroundings of Tren _ín and Bánovce nad Bebravou (western Slovakia) during two years (2006 and 2007). Altogether we determined 14 species of parasitoids belonging to four families (Braconidae, Eurytomidae, Pteromalidae, Eulophidae). The Eulophidae chalcidoid wasps predominated whereas of them the chalcidoid wasp Entodon leucogramma was the most important natural enemy of the European oak bark beetle (dominance 45.7% in 2006 and 54.1% in 2007 of all parasitoids emerged). The braconid Dendrosoter protuberans was the second most dominant species (dominance 13.7% in 2006 and 24.2% in 2007 of all parasitoids emerged). Larvae of the European oak bark beetle developing in the logs of Quercus dalechampii were parasitized more heavily than those in the logs of Quercus cerris (average parasitization rate 25.7-32.7% vs. 18.4-24.5%, respectively). Larvae were more parasitized in 2006 than in 2007 (27.0-33.4% vs. 17.2-23.8%, respectively). The paper presents an overview of parasitoids of the European oak bark beetle, which represent one of the most important bioregulative factors in its populations. Cieľom výskumu bolo ur _iť druhé spektrum parazitoidov a ur _iť percento parazitácie na larvách podkôrnika dubového (Scolytus intricatus). Parazitoidy boli získané pomocou fotoeklektorov z 96 vzoriek duba žltkastého (Quercus dalechampii) a z 96 vzoriek duba cerového (Quercus cerris). Vzorky boli odoberané z dubových porastov v okolí Tren _ína a Bánoviec nad Bebravou po _as dvoch rokov (2006 a 2007). Celkovo bolo ur _ených 14 druhov parazitoidov patriacich do štyroch _eľadí (Braconidae, Eurytomidae, Pteromalidae, Eulophidae). Čeľa _ chalcidiek Eulophidae bola predominantná, z nich bola chalcidka Entedon leucogramma najvýznamnejší prirodzený hmyzí nepriateľ podkôrnika dubového (dominancia 45,7% v roku 2006 a 54,1% v roku 2007 zo všetkých odchytených parazitoidov). Lum _ík Dendrosoter protuberans bol druhý najviac dominantný druh (dominancia 13,7% v roku 2006 a 24,2% v roku 2007 zo všetkých parazitoidov). Larvy podkôrnika dubového vyvíjajúce sa vo vzorkách duba žltkastého boli viac parazitované ako vo vzorkách duba cerového (priemerný stupeň parazitácie 25,7-32,7% vs 18,4-24,5%). Larvy boli viac parazitované v roku 2006 ako v roku 2007 (27,0-33,4% vs 17,2-23,8%). Článok uvádza prehľad druhového spektra parazitoidov podkôrnika dubového, ktoré sú najdôležitejší bioregula _ný faktor v jeho populácií.</description><identifier>ISSN: 0323-1046</identifier><identifier>ISSN: 2454-034X</identifier><identifier>EISSN: 1338-4295</identifier><identifier>EISSN: 2454-0358</identifier><identifier>DOI: 10.2478/v10114-009-0001-8</identifier><language>eng ; slo</language><publisher>Bratislava: Versita</publisher><subject>dub ; European oak bark beetle (Scolytus intricatus) ; oak ; parasitization ; parasitoids ; parazitoidy ; parazitácia ; podkôrnik dubový (Scolytus intricatus)</subject><ispartof>Central European forestry journal, 2009-01, Vol.55 (1), p.1-12</ispartof><rights>Copyright Versita Jan 2009</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c306t-23dd5444aa0f45b7dc65dfc601af7769cc7ddd9eb676d78aab663a8921ad60b23</citedby><cites>FETCH-LOGICAL-c306t-23dd5444aa0f45b7dc65dfc601af7769cc7ddd9eb676d78aab663a8921ad60b23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/1322349092?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,25753,27924,27925,37012,44590</link.rule.ids></links><search><creatorcontrib>Galko, Juraj (Národné lesnícke centrum-Lesnícky výskumný ústav Zvolen, Stredisko lesníckej ochranárskej služby, Lesnícka 11, SK-969 23 Banská Štiavnica)</creatorcontrib><creatorcontrib>Pavlík, Štefan (Technická univerzita vo Zvolene, Lesnícka fakulta, T. G. Masaryka 20, SK-960 53 Zvolen)</creatorcontrib><title>Parasitic wasps (Hymenoptera) of the European oak bark beetle larvae (Scolytus intricatus Ratz., Coleoptera: Scolytidae)</title><title>Central European forestry journal</title><description>The purpose of the paper was to determine the species composition of parasitic wasps (parasitoids) and to find out the percentage of parasitization of the European oak bark beetle (Scolytus intricatus Ratz.) larvae. Parasitoids were gathered by means of photoeclectors from 96 samples of Quercus dalechampii Ten. and from 96 samples of Quercus cerris L. Logs were sampled in eight forest stands in the surroundings of Tren _ín and Bánovce nad Bebravou (western Slovakia) during two years (2006 and 2007). Altogether we determined 14 species of parasitoids belonging to four families (Braconidae, Eurytomidae, Pteromalidae, Eulophidae). The Eulophidae chalcidoid wasps predominated whereas of them the chalcidoid wasp Entodon leucogramma was the most important natural enemy of the European oak bark beetle (dominance 45.7% in 2006 and 54.1% in 2007 of all parasitoids emerged). The braconid Dendrosoter protuberans was the second most dominant species (dominance 13.7% in 2006 and 24.2% in 2007 of all parasitoids emerged). Larvae of the European oak bark beetle developing in the logs of Quercus dalechampii were parasitized more heavily than those in the logs of Quercus cerris (average parasitization rate 25.7-32.7% vs. 18.4-24.5%, respectively). Larvae were more parasitized in 2006 than in 2007 (27.0-33.4% vs. 17.2-23.8%, respectively). The paper presents an overview of parasitoids of the European oak bark beetle, which represent one of the most important bioregulative factors in its populations. Cieľom výskumu bolo ur _iť druhé spektrum parazitoidov a ur _iť percento parazitácie na larvách podkôrnika dubového (Scolytus intricatus). Parazitoidy boli získané pomocou fotoeklektorov z 96 vzoriek duba žltkastého (Quercus dalechampii) a z 96 vzoriek duba cerového (Quercus cerris). Vzorky boli odoberané z dubových porastov v okolí Tren _ína a Bánoviec nad Bebravou po _as dvoch rokov (2006 a 2007). Celkovo bolo ur _ených 14 druhov parazitoidov patriacich do štyroch _eľadí (Braconidae, Eurytomidae, Pteromalidae, Eulophidae). Čeľa _ chalcidiek Eulophidae bola predominantná, z nich bola chalcidka Entedon leucogramma najvýznamnejší prirodzený hmyzí nepriateľ podkôrnika dubového (dominancia 45,7% v roku 2006 a 54,1% v roku 2007 zo všetkých odchytených parazitoidov). Lum _ík Dendrosoter protuberans bol druhý najviac dominantný druh (dominancia 13,7% v roku 2006 a 24,2% v roku 2007 zo všetkých parazitoidov). Larvy podkôrnika dubového vyvíjajúce sa vo vzorkách duba žltkastého boli viac parazitované ako vo vzorkách duba cerového (priemerný stupeň parazitácie 25,7-32,7% vs 18,4-24,5%). Larvy boli viac parazitované v roku 2006 ako v roku 2007 (27,0-33,4% vs 17,2-23,8%). Článok uvádza prehľad druhového spektra parazitoidov podkôrnika dubového, ktoré sú najdôležitejší bioregula _ný faktor v jeho populácií.</description><subject>dub</subject><subject>European oak bark beetle (Scolytus intricatus)</subject><subject>oak</subject><subject>parasitization</subject><subject>parasitoids</subject><subject>parazitoidy</subject><subject>parazitácia</subject><subject>podkôrnik dubový (Scolytus intricatus)</subject><issn>0323-1046</issn><issn>2454-034X</issn><issn>1338-4295</issn><issn>2454-0358</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><recordid>eNo9kE1v1DAQhi0EEkvLD-CAZIlLK5F2_BE75lZW_RKLKFAEN2sSO5CSroPtLV1-fb1KxWE8PjzvO9JDyCsGR1zq5viOAWOyAjBlgFXNE7JgQjSV5KZ-ShYguKgYSPWcvEjpBkADyGZB7q8wYhry0NG_mKZEDy62t34dpuwjHtLQ0_zL09NNDJPHNQ34m7YYy-N9Hj0dMd6hpwdfuzBu8ybRYZ3j0OHu-wXzv6O3dBlGP9e9ozM2OPSH--RZj2PyLx_3Hvl2dnq9vKhWn84vlyerqhOgcsWFc7WUEhF6Wbfadap2faeAYa-1Ml2nnXPGt0orpxvEVimBjeEMnYKWiz3yZu6dYviz8Snbm7CJ63LSMsG5kAbMjmIz1cWQUvS9neJwi3FrGdidYDsLtkWw3Qm2TclUc2ZI2d__DxQ7Vmmha_v5Wtr3H8zHH2ffwZrCv575HoPFn3FI9mrFS-FJ6QMpHgBZQ4bs</recordid><startdate>20090101</startdate><enddate>20090101</enddate><creator>Galko, Juraj (Národné lesnícke centrum-Lesnícky výskumný ústav Zvolen, Stredisko lesníckej ochranárskej služby, Lesnícka 11, SK-969 23 Banská Štiavnica)</creator><creator>Pavlík, Štefan (Technická univerzita vo Zvolene, Lesnícka fakulta, T. 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G. Masaryka 20, SK-960 53 Zvolen)</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Parasitic wasps (Hymenoptera) of the European oak bark beetle larvae (Scolytus intricatus Ratz., Coleoptera: Scolytidae)</atitle><jtitle>Central European forestry journal</jtitle><date>2009-01-01</date><risdate>2009</risdate><volume>55</volume><issue>1</issue><spage>1</spage><epage>12</epage><pages>1-12</pages><issn>0323-1046</issn><issn>2454-034X</issn><eissn>1338-4295</eissn><eissn>2454-0358</eissn><abstract>The purpose of the paper was to determine the species composition of parasitic wasps (parasitoids) and to find out the percentage of parasitization of the European oak bark beetle (Scolytus intricatus Ratz.) larvae. Parasitoids were gathered by means of photoeclectors from 96 samples of Quercus dalechampii Ten. and from 96 samples of Quercus cerris L. Logs were sampled in eight forest stands in the surroundings of Tren _ín and Bánovce nad Bebravou (western Slovakia) during two years (2006 and 2007). Altogether we determined 14 species of parasitoids belonging to four families (Braconidae, Eurytomidae, Pteromalidae, Eulophidae). The Eulophidae chalcidoid wasps predominated whereas of them the chalcidoid wasp Entodon leucogramma was the most important natural enemy of the European oak bark beetle (dominance 45.7% in 2006 and 54.1% in 2007 of all parasitoids emerged). The braconid Dendrosoter protuberans was the second most dominant species (dominance 13.7% in 2006 and 24.2% in 2007 of all parasitoids emerged). Larvae of the European oak bark beetle developing in the logs of Quercus dalechampii were parasitized more heavily than those in the logs of Quercus cerris (average parasitization rate 25.7-32.7% vs. 18.4-24.5%, respectively). Larvae were more parasitized in 2006 than in 2007 (27.0-33.4% vs. 17.2-23.8%, respectively). The paper presents an overview of parasitoids of the European oak bark beetle, which represent one of the most important bioregulative factors in its populations. Cieľom výskumu bolo ur _iť druhé spektrum parazitoidov a ur _iť percento parazitácie na larvách podkôrnika dubového (Scolytus intricatus). Parazitoidy boli získané pomocou fotoeklektorov z 96 vzoriek duba žltkastého (Quercus dalechampii) a z 96 vzoriek duba cerového (Quercus cerris). Vzorky boli odoberané z dubových porastov v okolí Tren _ína a Bánoviec nad Bebravou po _as dvoch rokov (2006 a 2007). Celkovo bolo ur _ených 14 druhov parazitoidov patriacich do štyroch _eľadí (Braconidae, Eurytomidae, Pteromalidae, Eulophidae). Čeľa _ chalcidiek Eulophidae bola predominantná, z nich bola chalcidka Entedon leucogramma najvýznamnejší prirodzený hmyzí nepriateľ podkôrnika dubového (dominancia 45,7% v roku 2006 a 54,1% v roku 2007 zo všetkých odchytených parazitoidov). Lum _ík Dendrosoter protuberans bol druhý najviac dominantný druh (dominancia 13,7% v roku 2006 a 24,2% v roku 2007 zo všetkých parazitoidov). Larvy podkôrnika dubového vyvíjajúce sa vo vzorkách duba žltkastého boli viac parazitované ako vo vzorkách duba cerového (priemerný stupeň parazitácie 25,7-32,7% vs 18,4-24,5%). Larvy boli viac parazitované v roku 2006 ako v roku 2007 (27,0-33,4% vs 17,2-23,8%). Článok uvádza prehľad druhového spektra parazitoidov podkôrnika dubového, ktoré sú najdôležitejší bioregula _ný faktor v jeho populácií.</abstract><cop>Bratislava</cop><pub>Versita</pub><doi>10.2478/v10114-009-0001-8</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record>
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2454-034X
1338-4295
2454-0358
language eng ; slo
recordid cdi_proquest_journals_1322349092
source Publicly Available Content (ProQuest)
subjects dub
European oak bark beetle (Scolytus intricatus)
oak
parasitization
parasitoids
parazitoidy
parazitácia
podkôrnik dubový (Scolytus intricatus)
title Parasitic wasps (Hymenoptera) of the European oak bark beetle larvae (Scolytus intricatus Ratz., Coleoptera: Scolytidae)
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