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The complex symbiotic relationships of bark beetles with microorganisms: A potential practical approach for biological control in forestry

Popa, Valentin; Déziel, Éric; Lavallée, Robert; Bauce, Éric; Guertin, Claude (2012). The complex symbiotic relationships of bark beetles with microorganisms: A potential practical approach for biological control in forestry Pest Management Science , vol. 68 , nº 7. p. 963-975. DOI: 10.1002/ps.3307.

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Résumé

Bark beetles, especially Dendroctonus species, are considered to be serious pests of the coniferous forests in North America. Bark beetle forest pests undergo population eruptions, causing regionwide economic losses. In order to save forests, finding new and innovative environmentally friendly approaches in wood-boring insect pest management is more important than ever. Several biological control methods have been attempted over time to limit the damage and spreading of bark beetle epidemics. The use of entomopathogenic microorganisms against bark beetle populations is an attractive alternative tool for many biological control programmes in forestry. However, the effectiveness of these biological control agents is strongly affected by environmental factors, as well as by the susceptibility of the insect host. Bark beetle susceptibility to entomopathogens varies greatly between species. According to recent literature, bark beetles are engaged in symbiotic relationships with fungi and bacteria. These types of relationship are very complex and apparently involved in bark beetle defensive mechanisms against pathogens. The latest scientific discoveries in multipartite symbiosis have unravelled unexpected opportunities in bark beetle pest management, which are discussed in this article

Type de document:
Mots-clés libres: Bacteria, Bark beetles, Biological control, Fungi, Microbial, symbiotic complex, Multipartite symbiosis
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 01 mai 2014 20:44
Dernière modification: 01 mai 2014 20:44
URI: http://espace.inrs.ca/id/eprint/2196

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