par Nageleisen, Louis-Michel;Grégoire, Jean-Claude 
Référence Revue forestière française, 73, 4, page (479-498)
Publication Publié, 2021-10-01
Référence Revue forestière française, 73, 4, page (479-498)
Publication Publié, 2021-10-01
Article révisé par les pairs
| Résumé : | The bark beetle (Ips typographus) is a coleopteran (Coleoptera, Scolytinae) whose main host in Europe is common spruce. Several generations can develop throughout the year depending on climate conditions. Proliferations are regularly observed after events that provide large numbers of reproduction sites, e.g., uprooted trees following storms or stands weakened by droughts. A slow co-evolution between the insect and its host has resulted in bark beetles developing a colonisation strategy that allows them to bypass the defence reactions of the trees and colonise healthy trees during proliferation periods. This characteristic makes it the greatest tree killer among insects in Europe. Following unprecedented heat waves and droughts these last years, foresters are faced with severe damage in spruce forests, in such a tense socioeconomic context that it is hard to take efficient measures to counter the ongoing epidemic. |
