Short communication, Note

New data on the host specificity of Larssoniella duplicati

KAROLINA LUKÁŠOVÁ ; Department of Forest Protection and Entomology, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Kamýcká 129, 165 21 Prague 6, Czech Republic
JAROSLAV HOLUšA ; 1_Department of Forest Protection and Entomology, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Kamýcká 129, 165 21 Prague 6, Czech Republic; _

Abstract

Background and Purpose: Ips duplicatus and I. typographus are two
serious pests of spruce in Europe. They have similar bionomics and are likely to occur andmeet on the same host trees. One could hypothesize that the two species support similar levels of similar pathogens, but Larssoniella duplicati is species-specific for I. duplicatus.

Materials and Methods: To test this hypothesis, we collected mature
beetles fromtwo felled s pruce trees and determined their pathogen infection levels.

Results and Conclusions: In total, 857mature I. duplicatus beetles and
349 I. typographus were dissected. Two microsporidian pathogens were detected. Chytridiopsis typographi was found in both species of bark beetles, while Larssoniella duplicati was found only in Ips duplicatus. Therefore, itmay still be considered that L. duplicati is species-specific for I. duplicatus. There were no significant differences between sample trees in pathogen infection levels in bark beetles.

Keywords

Larssoniella duplicati; Chytridiopsis typographi; Ips duplicatus; Ips typographus

Hrčak ID:

110966

URI

https://hrcak.srce.hr/110966

Publication date:

30.9.2013.

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