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Annals of Forest Science
Article . 2015 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
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Hal-Diderot
Article . 2015
Data sources: Hal-Diderot
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The pine shoot beetle Tomicus piniperda as a plausible vector of Fusarium circinatum in northern Spain

Authors: Bezos, Diana; Martínez-Álvarez, Pablo; Diez, Julio J.; Fernández, Mercedes M.;

The pine shoot beetle Tomicus piniperda as a plausible vector of Fusarium circinatum in northern Spain

Abstract

International audience; AbstractKey messageThe pine shoot beetle, Tomicus piniperda, is a potential vector of the pitch canker disease pathogen. The insect could transmit the pathogenic fungus during its maturation or regeneration feeding on the shoots of healthy pine crowns.ContextFusarium circinatum, the causal agent of pitch canker disease, currently affects Pinus radiata in northern Spain, causing pitch-soaked cankers and tree death. Although several species of the family Scolytinae have been reported as vectors of this pathogen, the role of the pine shoot beetle T. piniperda remains unclear.AimsThe general objective of this study was to determine whether T. piniperda is a vector for the pitch canker pathogen F. circinatum. For this purpose, Leach’s postulates (1) an association between T. piniperda and trees affected by pitch canker disease; (2) regular visits by T. piniperda to healthy P. radiata trees; (3) presence of the pathogen on the insect in nature; and (4) transmission of the pathogen to disease-free host material under controlled conditions.MethodsFresh green shoots with feeding galleries were collected from the ground, breeding galleries were collected from diseased trunks and insects were collected during their dispersion flights. A laboratory experiment was conducted in which specimens of T. piniperda were inoculated with the pathogen prior to feeding on shoots.ResultsIn the field, T. piniperda was found to be associated with both diseased and healthy P. radiata trees, and F. circinatum was found to be present, at low rates, on the exoskeleton of T. piniperda. In the laboratory experiment, evidence of the ability of T. piniperda to transfer the pathogen to healthy shoots was found.ConclusionsThe study findings indicate T. piniperda as a plausible vector of this pathogen. We postulate for the first time a potential relationship between the life cycles of T. piniperda and F. circinatum.

Country
France
Related Organizations
Subjects by Vocabulary

Microsoft Academic Graph classification: Radiata Fusarium circinatum Tomicus piniperda Botany medicine Canker biology Pinus radiata biology.organism_classification medicine.disease Vector (epidemiology) Shoot Woody plant

Keywords

Forest disease, [SDV]Life Sciences [q-bio], Pitch canker, Pinus radiata, Ecology, Forestry, Pine shoot beetle

42 references, page 1 of 5

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Bezos D, Martínez-Álvarez P, Diez JJ, Fernandez M (2013) Bark beetles and fungi associated to pitch canker disease caused by Fusarium circinatum. Valsaín, Segovia (Spain)

Bouhot L, Lieutier F, Debouzie D (1988) Spatial and temporal distribution of attacks by Tomicus piniperda L. and Ips sexdentatus Boern. (Col., Scolytidae) on Pinus sylvestris. J Appl Entomol 106:356-371 [OpenAIRE]

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Faccoli M (2006) Morphological separation of Tomicus piniperda and T. destruens (Coleoptera: Curculionidae: Scolytinae): new and old characters. Eur. J Entomol 103:433 [OpenAIRE]

Fernández M, Alonso J, Costas J (1999) Shoot feeding and overwintering in the lesser pine shoot beetle Tomicus minor (Col., Scolytidae) in north-west Spain. J Appl Entomol 123:321-327

Gallego D, Galian J (2001) The internal transcribed spacers (ITS1 and ITS2) of the rDNA differentiates the bark beetle forest pests Tomicus destruens and T. piniperda. Insect Mol Biol 10:415-420. doi:10. 1046/j.0962-1075.2001.00279.x

Gallego D, Canovas F, Esteve M, Galián J (2004) Descriptive biogeography of Tomicus (Coleoptera: Scolytidae) species in Spain. J Biogeogr 31:2011-2024

Gallego D, Galián J, Diez J, Pajares J (2008) Kairomonal responses of Tomicus destruens (Col., Scolytidae) to host volatiles α-pinene and ethanol. J Appl Entomol 132:654-662

Jacobs K, Bergdahl DR, Wingfield MJ, Halik S, Seifert KA, Bright DE, Wingfield BD (2004) Leptographium wingfieldii introduced into North America and found associated with exotic Tomicus piniperda and native bark beetles. Mycol Res 108:411-418 [OpenAIRE]

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
19
Average
Average
Top 10%
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