When determining the geographic distribution of this insect it is difficult to establish whether it is native or introduced because of its unique history. It has steadily spread westward over the past years, undoubtedly aided by the increased trade in unprocessed logs. At present, it is found throughout Eurasia and has adapted to a wide range of forest conditions. This insect is now established across most of western Europe from European Russia, west to Belgium and France, south to Turkey, and north to Finland and Sweden. It was discovered in the UK in The distribution in this summary table is based on all the information available.
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When determining the geographic distribution of this insect it is difficult to establish whether it is native or introduced because of its unique history. It has steadily spread westward over the past years, undoubtedly aided by the increased trade in unprocessed logs. At present, it is found throughout Eurasia and has adapted to a wide range of forest conditions. This insect is now established across most of western Europe from European Russia, west to Belgium and France, south to Turkey, and north to Finland and Sweden.
It was discovered in the UK in The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.
Due to the variable regulations around de registration of pesticides, your national list of registered pesticides or relevant authority should be consulted to determine which products are legally allowed for use in your country when considering chemical control. Pesticides should always be used in a lawful manner, consistent with the product's label. Alkan S; Aksu Y, Research on rearing techniques for Rhizophagus grandis Gyll. Coleoptera, Rhizophagidae. Establishment and spread of Rhizophagus grandis Gyll.
Coleoptera: Rhizophagidae 6 years after release in the Foret domaniale du Mezenc France. Annales des Sciences Forestieres, 52 3 Battisti A, Dendroctonus micans Kugelann in Italy Coleoptera Scolytidae. Frustula Entomologica, Bejer-Petersen B, Dendroctonus micans Kug. Benz G, Dendroctonus micans in Turkey: the situation today. Bevan D; King CJ, Commonwealth Forestry Review, 62 1 A catalogue of Scolytidae and Platypodidae Coleoptera , Supplement 2 Contribution to the study of the dispersal and aggressivity of Dendroctonus micans Kug.
Scolytidae in France. Chararas C, Variations de la pression osmotique de Picea excelsa a la suite des attaques de Dendroctonus micans Kug. Coleoptera, Scolytidae. DKOA, Bark beetles. EPPO, PQR database. Evans H, Entopath News, No. Restoring the natural balance: biological control of Dendroctonus micans in Great Britain.
Biological control introductions - opportunities for improved crop production. Biological control of Dendroctonus micans Coleoptera: Scolytidae : British experience of rearing and release of Rhyzophagus grandis Coleoptera: Rhizophagidae. Potential for Biological Control of Dendroctonus and Ips beetles. Austin State University, Dendroctonus micans in the United Kingdom. The result of two years experience in survey and control.
The toxicity of spruce monoterpenes to bark beetles and their associates. In: Mattson WJ, et al. Biological control of Dendroctonus micans Scolytidae in Great Britain.
Biocontrol News and Information, 18 2 NN; 35 ref. Distribution and spread of the great European spruce bark beetle, Dendroctonus micans, in Britain - to Forestry Oxford , 64 4 Furniss MM, Taxonomic status of Dendroctonus punctatus and D.
Annals of the Entomological Society of America, 89 3 ; 21 ref. Silvicultural and physiological characteristics of trees damaged by Dendroctonus.
The greater European spruce beetle. In: Berryman AA, ed. Dynamics of Forest Insect Populations. Interactions between Rhizophagus grandis Coleoptera: Rhizophagidae and Dendroctonus micans Coleoptera: Scolytidae in the field and laboratory: Their application for the biological control of D. Semiochemicals and the management of Rhizophagus grandis Gyll. Journal of Applied Entomology, The spruce beetle. Jurc M, Norway spruce - Picea abies L. Insects on trunks, branches and in the wood - Part II.
Dryocoetes autographus, Cryphalus abietis, Dendroctonus micans, Xyloterus lineatus, Hylastes cunicularius, Crypturgus pusillus. Navadna smreka - Picea abies L. Zuzelke na deblih, vejah in v lesu. Gozdarski Vestnik, 64 2 Electrophoretic comparison of Dendroctonus punctatus Leconte and D. Pan-Pacific Entomologist, 73 1 ; 22 ref. The rearing of Rhizophagus grandis and its release against Dendroctonus micans in the United Kingdom.
Dendroctonus micans in Britain - its biology and control. Kobakhidze DN, Entomophaga, Outbreak of Dendroctonus micans. Lesnoe Khozyaistvo, Interrelations between the European spruce beetle Dendroctonus micans Kugel. In: Rol' vzaimootnoshenii rastenie-nasekomoe v dinamike chislennosti populyatsi lesnykh vreditelei. Konca B, Changes in the distribution of some insect species in Lower Silesia.
Sylwan, 7 ; 11 ref. Markov VA, The great spruce bark beetle in the forests of the Ryazan region. Lesnoe Khozyaistvo, No. Moeck HA; Safranyik L, Assessment of predator and parasitoid control of bark beetles. BC-X pp. Novak V, Atlas of insects harmful to forest trees. Amsterdam: Elsevier Scientific Publishing Company. Serez M, Turkiye Bitki Koruma Dergisi, 3 1 Shavliashvili IA; Zharkov D, Effects of ecological factors on the interaction between populations of Dendroctonus micans and Ips typographus Coleoptera: Scolytidae.
In: Safranyik L, ed. Quarantine pests for Europe. Cambridge, UK: University Press, Verbenone interrupts attraction to host volatiles and reduces attack on Pinus tabuliformis Pinaceae by Dendroctonus valens Coleoptera: Scolytidae in the People's Republic of China. Canadian Entomologist, 5
Great spruce bark beetle (Dendroctonus micans)
It is the biggest European bark beetle of mm in length. The body is robust, cylindrical, black or dark brown, covered with tiny yellowish hair. Elytrae are with rows of punctures. The declivity is covered with reddish hair. Adults fly from May through August.
The pest is found in spruce trees in forests throughout mainland Europe as far east as Siberia, and in parts of Great Britain, including Wales, western England and southern Scotland. It has not been reported in Northern Ireland. Great spruce bark beetles damage spruce trees by tunnelling into the bark of living trees to lay their eggs under the bark. The larvae which emerge from the eggs feed on the inner woody layers.
EPPO Global Database
The biological control programme has been, and continues to be highly successful because of the extraordinary ability of the predator to locate its prey even when there are only a few infested trees in the forest. Rhizophagus grandis. Sense organs that detect chemical signals from prey are located on the antennae, one of which is magnified inset. The rearing system to breed R. In addition, because R. In forestry, exotic bark beetles are a particular threat because they can be concealed in imported timber.
List of symptoms / signs
Dendroctonus micans , the great spruce bark beetle , is a species of bark beetle native to the coniferous forests of Europe and Asia. 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. The eggs of the great spruce bark beetle are smooth, white and translucent, and laid in batches of a hundred or more. The larvae are legless and "C"-shaped, white with darker heads. The pupae are white and "mummy-like"; they are exarate, with legs and wings separate from the body. The limbs and antennae are yellowish-brown, the head is visible when viewed from above, and the elytral declivity, the downward sloping rear end of the elytra , is rounded and smooth. The great spruce bark beetle occurs in the coniferous forests of Europe and Asia.