Resilience and functionality of European Norway spruce forests are increasingly threatened
by mass outbreaks of the bark beetle Ips typographus promoted by heat, wind throw and …

Outbreaks of the Eurasian spruce bark beetle (Ips typographus) have decimated millions of
hectares of conifer forests in Europe in recent years. The ability of these 4.0 to 5.5 mm long …

Advancing climate change is affecting the health and vitality of forests in many parts of the
world. Europe is currently facing spruce bark beetle outbreaks, which are most often caused …

Global warming and more frequent climate extremes have caused bark beetle outbreaks of
unprecedented scale of these insects in many conifer forests world‐wide. Conifers that have …

Insects detect odors using an array of odorant receptors (ORs), which may expand through
gene duplication. How and which new functions may evolve among related ORs within a …

Bark beetles face challenges and trade-offs during host selection, imposed by lethal tree
defences, lower nutrition and higher competition in less well-defended trees, scarcity and …

Tree-killing bark beetles require rapid management, such as anti-attractants, to stop the
enlargement of attack hot-spots. We tested two newer anti-attractant blends, both without …

Bark beetles kill apparently vigorous conifers during epidemics by means of pheromone-
mediated aggregation. During non-endemic conditions the beetles are limited to use trees …

Protection of Norway spruce stands using anti-attractants was tested during an outbreak of
bark beetles (Ips typographus) in their spring flight. The aims of this study were as follows:(1) …

The European spruce bark beetle, Ips typographus (L.), is a major pest of Norway spruce.
During outbreaks, the beetles can colonize moderately stressed trees via mass attacks …