Featured speciesText © K. Reißmann, T. Hörren, M. Stern, F. Bötzl and C. Benisch
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13.10.2023
Ips sexdentatus (Boerner, 1767)
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The 5.5 to 7.5 mm large six-toothed bark beetle Ips sexdentatus (family Scolytidae) is one of six species of the genus Ips in our fauna, which comprises about 40 species worldwide, mainly in the northern hemisphere. Ips sexdentatus occurs in Europe and Asia and is regarded as forestry pest. It attacks mainly Scots pine (Pinus sylvestris), occasionally other conifers. Attacks are initiated by the males, who construct nuptial chambers under the bark and attract several females by emitting pheromones. Young larvae feed in galleries perpendicular to the egg chamber. The number of generations depends on climate and ranges from one per year north of the Arctic Circle to 4-5 in the Mediterranean region. The control of outbreaks is very difficult thus the prevention of outbreaks is emphasized. Unhealthy and wind-thrown trees, as well as slash, should be quickly removed and processed. (CB)
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