Damage by Neonectria neomacrospora and Adelges piceae in provenance trials of subalpine fir (Abies lasiocarpa) in Denmark

Summary Field trials of Abies lasiocarpa were undertaken with the aim of assessing the potential for Christmas tree production in Denmark. Twenty‐six provenances originating from Alaska to New Mexico were tested. Damage by the insect Adelges piceae and the fungus Neonectria neomacrospora was recorde...

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Bibliographic Details
Published in:Forest pathology = Journal de pathologie forestière = Zeitschrift für Forstpathologie 2017-06, Vol.47 (3), p.n/a
Main Authors: Skulason, B., Hansen, O. K., Thomsen, I. M., Talgø, V., Nielsen, U. B., Kim, M‐S.
Format: Article
Language:English
Subjects:
Abies lasiocarpa
Adelges piceae
Biological damage
Damage
Detaching
Field trials
Fungi
Greenhouse effect
Greenhouses
Humid climates
Infections
Insects
Neonectria neomacrospora
Planting
Shoots
Tree planting
Trees
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Summary:Summary Field trials of Abies lasiocarpa were undertaken with the aim of assessing the potential for Christmas tree production in Denmark. Twenty‐six provenances originating from Alaska to New Mexico were tested. Damage by the insect Adelges piceae and the fungus Neonectria neomacrospora was recorded for the first time 8 and 12 years after the initial planting. Damage from N. neomacrospora increased rapidly in the period 12–15 years after planting. Trees from the northern provenances and humid climates exhibited less damage than those from southern ones. Previous attack by A. piceae had a minor effect on N. neomacrospora infection. Greenhouse tests showed that detached shoots from healthy Abies lasiocarpa can be used to rank provenances for resistance to N. neomacrospora, but results varied according to host subspecies.
ISSN:1437-4781
1439-0329
DOI:10.1111/efp.12326