Potential for biological twelve control of dendroctonus and. A recent outbreak destroyed more than 15 million hectares of pine forests, with major environmental effects on forest health, and economic effects on the forest industry. Dendroctonus murrayanae hopkins, 1909 lodgepole pine beetle, dendroctone du pin tordu. Adults and larvae kill the trees by directly feeding on and girdling them.
Exotic wood borer bark beetle dendroctonus micans survey reference. Distribution and spread of the great european spruce bark. Trees attacked by dendroctonus beetles can at first be detected by reddish boring dust caught in bark flakes or crevices and around the base of the tree, or by pitch tubes that form on the bark at the mouth of the entrance tunnels, but in heavily attacked or decadent trees pitch tubes are often either missing or so small that they can be seen. Dendroctonus micans kugelann, 1794 european spruce beetle.
Dendroctonus micans, the great spruce bark beetle, is a species of bark beetle native to the coniferous forests of europe and asia. Some wind a tortuous manner, crossing and recrossing the galleries made by other pairs of beetles, while others are straight and parallel to. The distribution of both host and predator now extends westerly from eastern siberia to france and eng land, south to turkey, and to the northern tip of norway bevan and king 1983. The larger eighttoothed european spruce bark beetle ips typographus is considered a serious pest on spruce in europe and has recently been found in. The great spruce bark beetle, dendroctonus micans kugelann coleoptera. The biology of dendroctonus micans adult and egg stages the adult d. Chromosome number in dendroctonus micans and karyological divergence within the genus dendroctonus coleoptera. Biological control of greater european spruce beetle.
Dendroctonus definition is a genus of small bark beetles that are especially destructive to mature coniferous trees and that have a large prothorax, short clubbed elbowed antennae, serrated tibiae, and spiny elytra. Dendroctonus micans dencmioverview eppo global database. The beetles burrow into the bark of spruce trees and lay eggs which develop into larvae that feed on the woody layers under the bark. Billings texas forest service, lufkin, texas, jaime e. Five nonsporeforming bacteria were isolated from the european cockchafer, melolontha melolontha linnaeus, 1758 coleoptera. It is the biggest european bark beetle of 69 mm in length. Bacterial and fungal symbionts of parasitic dendroctonus.
Spatial pattern of invading dendroctonus micans coleoptera. This page was last edited on 20 december 2019, at 09. In order to identify six bacteria in both systems, a fatty acid methyl ester fames analysis was conducted, and carbon utilization profiles were assessed, using microbial identification, biolog microplac systems, and the vitek bacterial identification systems biomerieux, prod. The other involves the palearctic beetle, rhizophagus grandis gyllenhal, a specific predator of d. Control strategies which have been applied so far are still insufficient to prevent its damage. The genus, dendroctonus, contains some of the most destructive forest insects in north and central america.
Bacterial and fungal symbionts of parasitic dendroctonus bark. Fifty bacterial cultures were isolated from 156 soil samples. The panel on plant health performed a pest categorisation of the great spruce bark beetle, dendroctonus micans kugelann, coleoptera. A strong attraction to host volatiles associated with wounding may also explain why new.
General information about dendroctonus micans dencmi. The aim of the thesis was to determinate species spectrum of the pathogens in the tract of the bark beetles d. Media in category dendroctonus micans the following 21 files are in this category, out of 21 total. The genus, dendroctonus, contains some of the most destructive forest insects in. Files are available under licenses specified on their description page. Management strategies for bark beetles in conifer forests chapter 14 557 assessmentofhosts basedonolfactory andor gustatory cues raffa and berryman, 1982, 1983. Although most of the species are capable of attacking and killing standing. In fact, death of the host is often a requirement for successful brood production.
Past attacks influence host selection by the solitary bark. This appraisal presents a costeffectiveness analysis of options to control the effects of the great spruce bark beetle, or dendroctonus micans, on spruce forests in great britain. Draft genome of the mountain pine beetle, dendroctonus. The majority of the species in this genus is capable of killing the host tree in one generation. Dendroctonus adults work in pairs, boring through the bark and then extending an egg gallery between the bark and wood. Dendroctonus micans are known to be highly attracted to felled and damaged trees storer and speight, 1996, and in the lab, the beetle has been shown to be strongly attracted to spruce resin and various monoterpenes vasechko, 1978. Dendroctonus genus of small bark beetles destructive especially to mature conifers genus dendroctonus arthropod genus a genus of arthropods. Dendroctonus synonyms, dendroctonus pronunciation, dendroctonus translation, english dictionary definition of dendroctonus. All structured data from the file and property namespaces is available under the creative commons cc0 license. Bark beetles in the genus dendroctonus home us forest. Proceedings of the eec seminar on the biological control of bark beetles dendroctonus micans, brussels, pp. Dendroctonus definition of dendroctonus by merriamwebster. Molecular characterization, virulence and horizontal.
Dendroctonus armandi native to china and dendroctonus micans, are found in palearctic conifer forests. Dp 20 diagnostic protocols for regulated pests dp 202 international plant protection convention 1. Surveys in spruce plantations were initiated to determine the distribution of the beetle, a necessary background for development of control strategies. Distribution of attacks by dendroctonus ponderosae hopk. The study was based on data from three plots 150300 trees, 0. Dendroctonus ponderosae hopkins, 1902 is a destructive pest of pine trees keeling et al.
The thesis deals with determination of species spectrum of the pathogens which infest bark beetle dendroctonus micans. Dendroctonus micans were collected on living trees in commana, merdrignac and scrignac, brittany, france 4824. Surveys in spruce plantations were initiated to determine the distribution of the beetle, a necessary background for. M gilbert, n fielding, h f evans, and, j c gregoire. There was no difference in the rate of infection of male and female beetles. It includes several species notorious for destroying trees in. Dendroctonus are associated with large numbers of natural enemies. Dendroctonus micans is primarily a pest of spruce, picea spp. Dendroctonus pseudotsugae hopkins, which responded to pheromones in crossattraction field tests. Larger eighttoothed european spruce bark beetle ips. This project was carried out within the unit of social ecology of the ulb brussels which studies the organisation of animal societies an d its underlying physiological and ethological mechanisms. A previous study has shown that a beauveria isolate arsef 9271 proved to be an efficient microbial control agent. The mountain pine beetle, dendroctonus ponderosae hopkins, is the most serious insect pest of western north american pine forests. Several species are important forest pests, capable of reaching epidemic levels and killing thousands of trees.
The great european spruce bark beetle dendroctonus micans, which had for many years been seen as a potential threat to britains spruce plantations, was first discovered in britain during august 1982, breeding in sitka spruce. The effect of lignin is dosedependent, reducing larval survival, growth rate, and weight, as well as affecting gallery construction. The central and northern europe, siberia and japan. Curculionidae, has been a potential threat for turkey and the entire eurasian spruce forests for many years. Dendroctonus mexicanus pdf phylogeography of the bark beetle dendroctonus mexicanus hopkins coleoptera. First record of dendroctonus micans kugelann, 1794 on non. Dendroctonus micans is the best studied of the parasites in this clade. Dendroctonus micans an overview sciencedirect topics.
Dendroctonus micans and ips typographus, that can be considered as complete opposites in terms of the strategies and ecological niches exhibited by bark beetles. Dendroctonus ponderosae hopkins, 1902 mountain pine beetle, dendroctone du pin ponderosa. Dendroctonus micans kugelann scolytidae contactsgo to all. The genus includes some of the largest specimens of north american scolytinae. Potential for biological twelve control of dendroctonus. Potential for biological control of native north american. Their potential was tested against the three economic insect pests, the great spruce bark beetle, dendroctonus micans kugelann coleoptera.
Biological control of dendroctonus micans scolytidae in. The role of lignin as a defence against the spruce bark. Dendroctonus micans is primarily pest of spruce, picea spp. Biocontrol cases this bark beetle, probably native to coniferous forests of eastern siberia, is one of only two dendroctonus species occurring in the palearctic region. Dendroctonus definition is a genus of small bark beetles that are especially destructive to mature coniferous trees and that have a large prothorax, short clubbed. Management strategies for bark beetles conifer forests. The frequency distribution of attack density was bimodal, but the bimodality was an. This study concerns a new neogregarine parasitic in the great spruce bark beetle dendroctonus micans kugelann curculionidae, scolytinae. First record of dendroctonus micans kugelann, 1794 on.
Dendroctonus definition of dendroctonus by the free. In 2015, we recorded the first attack of the great spruce bark beetle, dendroctonus micans kugelann coleoptera. It includes several species notorious for destroying trees in the forests of north america. Proceedings of the eec seminar on the biological control of bark beetles dendroctonus micans, brussels, belgium, 4347. Curculionidae, scolytinae on nonnative picea orientalis l. Dendroctonus mexicanus pdf new pdf download service. The outbreak has in part been driven by climate change, and will contribute to increased. Dendroctonus parallelocollis chapuis, 1869 species. Potential of five nonsporeforming bacteria, originated. In north america, species of the genus dendroctonus can be distinguished from the introduced tomicina, hylurgus latreille and tomicus latreille, and the native xylechinus chapuis, by the anterior margin of their compound eye.
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