Ips typographus L. - European Spruce Bark Beetle

presence of red tops on the affected trees - Forestry Commission of Great Britain
This bark beetle is considered to be one of the most destructive pests of spruce on the continent of Europe. Extensive injury to forests resulting from wars, fires and storms, has at numerous times made possible the buildup of high populations of the pest which caused excessive secondary damage. In addition to damaged trees, this species also attacks healthy trees. The ability to breed in very fresh bark, coupled with the habit of continuing to feed in the bark on completion of development, makes the insect a serious pest of spruce forests.

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