Host tree preference and performance of the Eurasian spruce bark beetle (Ips typographus) on Scots pine
Burchards, Jana Gabriele LU
; Kandasamy, Dineshkumar
LU
and Andersson, Martin N
LU
(2026)
In Pest Management Science
82(6).
p.5850-5860
- Abstract
- BACKGROUND
The Eurasian spruce bark beetle, Ips typographus, is one of the most serious pests of Norway spruce (NS, Picea abies), with the ability to infest and kill vigorous trees through pheromone-mediated mass attacks. During outbreaks, I. typographus has been observed to occasionally attack Scots pine (SP, Pinus sylvestris). We investigated in the laboratory whether I. typographus is attracted to SP bark and logs, which semiochemicals mediate this potential attraction, and how beetle fitness is affected by the host tree species.
RESULTS
Ips typographus was attracted to the odors from SP bark plugs in short-range walking bioassays, and did not prefer the bark odors from NS over SP. In two-choice bioassays with... (More) - BACKGROUND
The Eurasian spruce bark beetle, Ips typographus, is one of the most serious pests of Norway spruce (NS, Picea abies), with the ability to infest and kill vigorous trees through pheromone-mediated mass attacks. During outbreaks, I. typographus has been observed to occasionally attack Scots pine (SP, Pinus sylvestris). We investigated in the laboratory whether I. typographus is attracted to SP bark and logs, which semiochemicals mediate this potential attraction, and how beetle fitness is affected by the host tree species.
RESULTS
Ips typographus was attracted to the odors from SP bark plugs in short-range walking bioassays, and did not prefer the bark odors from NS over SP. In two-choice bioassays with logs, the beetles also did not discriminate significantly between the tree species. Analysis of NS and SP bark volatiles revealed quantitative differences in abundant monoterpenes and their enantiomers; however, none of the monoterpenes elicited a behavioral response when tested individually. Furthermore, we showed that I. typographus can reproduce in SP logs but with reduced offspring weight and numbers. Finally, males emitted less of the aggregation pheromone component cis-verbenol when colonizing SP compared with NS.
CONCLUSION
Our results suggest that I. typographus is attracted to SP bark odors at short-range and can reproduce in SP logs under laboratory conditions but with a reduced fitness. The reduced release of cis-verbenol may suggest a reduced likelihood of pheromone-induced mass attacks on SP. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5808b548-40a8-422f-8daf-e995c1774d67
- author
- Burchards, Jana Gabriele
LU
; Kandasamy, Dineshkumar
LU
and Andersson, Martin N
LU
- organization
- publishing date
- 2026-02-22
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Pest Management Science
- volume
- 82
- issue
- 6
- pages
- 11 pages
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:105030705215
- pmid:41724720
- ISSN
- 1526-498X
- DOI
- 10.1002/ps.70687
- language
- English
- LU publication?
- yes
- id
- 5808b548-40a8-422f-8daf-e995c1774d67
- date added to LUP
- 2026-03-04 13:56:00
- date last changed
- 2026-06-10 09:12:10
@article{5808b548-40a8-422f-8daf-e995c1774d67,
abstract = {{BACKGROUND<br/><br/>The Eurasian spruce bark beetle, Ips typographus, is one of the most serious pests of Norway spruce (NS, Picea abies), with the ability to infest and kill vigorous trees through pheromone-mediated mass attacks. During outbreaks, I. typographus has been observed to occasionally attack Scots pine (SP, Pinus sylvestris). We investigated in the laboratory whether I. typographus is attracted to SP bark and logs, which semiochemicals mediate this potential attraction, and how beetle fitness is affected by the host tree species.<br/><br/>RESULTS<br/><br/>Ips typographus was attracted to the odors from SP bark plugs in short-range walking bioassays, and did not prefer the bark odors from NS over SP. In two-choice bioassays with logs, the beetles also did not discriminate significantly between the tree species. Analysis of NS and SP bark volatiles revealed quantitative differences in abundant monoterpenes and their enantiomers; however, none of the monoterpenes elicited a behavioral response when tested individually. Furthermore, we showed that I. typographus can reproduce in SP logs but with reduced offspring weight and numbers. Finally, males emitted less of the aggregation pheromone component cis-verbenol when colonizing SP compared with NS.<br/><br/>CONCLUSION<br/><br/>Our results suggest that I. typographus is attracted to SP bark odors at short-range and can reproduce in SP logs under laboratory conditions but with a reduced fitness. The reduced release of cis-verbenol may suggest a reduced likelihood of pheromone-induced mass attacks on SP.}},
author = {{Burchards, Jana Gabriele and Kandasamy, Dineshkumar and Andersson, Martin N}},
issn = {{1526-498X}},
language = {{eng}},
month = {{02}},
number = {{6}},
pages = {{5850--5860}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Pest Management Science}},
title = {{Host tree preference and performance of the Eurasian spruce bark beetle (Ips typographus) on Scots pine}},
url = {{http://dx.doi.org/10.1002/ps.70687}},
doi = {{10.1002/ps.70687}},
volume = {{82}},
year = {{2026}},
}