Category: Article

THE NUISANCE OF THE ROCKY PINE FORESTS - THE SHARP-DENTATED BARK BEETLE The sharp-dentated bark beetle (Ips acuminatus) (approx. 2.2-3.5 mm) is a pine bark beetle that breeds in timber, logging residues and in the crowns of trees. The sharp-dentated bark beetle has previously appeared in Finland mainly in northern and eastern Finland, but in...

THE SIX-SPINED SPRUCE BARK BEETLE The six-spined spruce bark beetle (Pityogenes chalcographus L.) is two millimetres long dark brown bark beetle. It is our most common bark beetle species, and it occurs throughout the country. Unlike the European spruce bark beetle that uses Norway spruce as a host, the six-spined spruce bark beetle can also...

THE EUROPEAN SPRUCE BARK BEETLE European spruce bark beetle (Ips typographus L.) is around half centimeter long dark brown bark beetle. The species is endemic to Finland, and it is ecologically significant. For forest owners the European spruce bark beetle causes economic losses by drying Norway spruce trees (Picea abies (L.) Karst.) in the span...