Contribution to knowledge of Hylesinus fraxini (Panzer, 1779) (Coleoptera: Scolytidae) natural enemies from Northern Moravia (Czech Republic)

O. Nakládal and M. Turčáni
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O. Nakládal: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic
M. Turčáni: Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic

Journal of Forest Science, 2007, vol. 53, issue SpecialIssue, 53-56

Abstract: Predation by natural enemies was studied as mortality factors of Hylesinus fraxini in 2006-2007. Predation by birds was not recorded and predation rate by insect reached 0.1%. Only one insect predator was reared - Thanasimus formicarius (Linnaeus, 1758). The total rate of parasitism was 54.0%. At least 8 species of parasitoids from the order Hymenoptera were recorded. The most abundant parasitoid was Eurytoma morio Boheman, 1836 (44.1% from the total number of all reared parasitoids; 23.8% of the total mortality), subsequently Eurytoma arctica Thomson, 1876 (31.7%; 17.1%), Cheiropachus quadrum (Fabricius, 1787) (12.8%; 6.9%), Braconidae (6.3%; 3.4%), Rhaphitelus maculatus Walker, 1834 (3.9%; 2.1%), Mesopolobus sp. (0.5%; 0.3%), were not identified Pteromalidae (0.5%; 0.3%) and Tetrastichus sp. (0.2%; 0.1%).

Keywords: predators; parasitoids; natural enemies; bark beetles; Hylesinus fraxini; Thanasimus formicarius; Cheiro- pachus quadrum; Eurytoma morio; Eurytoma arctica; Czech Republic; Central Europe (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:53:y:2007:i:specialissue:id:2158-jfs

DOI: 10.17221/2158-JFS

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