Difference between revisions of "Ips duplicatus"
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[[File:Ips_duplicatus_PaDIL135612a.jpg|250px|thumb|''Ips duplicatus'' (click on image to enlarge it)<br/>Author(s): Ken Walker, Museum Victoria<br/>Source: [http://www.padil.gov.au/pests-and-diseases/Pest/Main/135612 PaDIL]]] | [[File:Ips_duplicatus_PaDIL135612a.jpg|250px|thumb|''Ips duplicatus'' (click on image to enlarge it)<br/>Author(s): Ken Walker, Museum Victoria<br/>Source: [http://www.padil.gov.au/pests-and-diseases/Pest/Main/135612 PaDIL]]] | ||
| − | <font color="#800000">'''''Ips duplicatus'''''</font> (Sahlberg) - (double-spined spruce engraver) | + | <font color="#800000">'''''Ips duplicatus'''''</font> (Sahlberg, 1836) - (double-spined spruce engraver) |
This species of bark beetles is found in north-eastern Europe and in northern Asia. It attacks mainly spruce trees but can be also found on some other conifers. During non-outbreak conditions, only the upper parts of the crown of 40-70 year old stressed trees are attacked. There may be 1 to 3 generations per year. The beetle is often associated with ''[[Ips typographus]]'' and damage by ''I. duplicatus'' is therefore not always recognized. | This species of bark beetles is found in north-eastern Europe and in northern Asia. It attacks mainly spruce trees but can be also found on some other conifers. During non-outbreak conditions, only the upper parts of the crown of 40-70 year old stressed trees are attacked. There may be 1 to 3 generations per year. The beetle is often associated with ''[[Ips typographus]]'' and damage by ''I. duplicatus'' is therefore not always recognized. | ||
Latest revision as of 21:28, 26 January 2023
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Ips duplicatus (Sahlberg, 1836) - (double-spined spruce engraver)
This species of bark beetles is found in north-eastern Europe and in northern Asia. It attacks mainly spruce trees but can be also found on some other conifers. During non-outbreak conditions, only the upper parts of the crown of 40-70 year old stressed trees are attacked. There may be 1 to 3 generations per year. The beetle is often associated with Ips typographus and damage by I. duplicatus is therefore not always recognized.
- Other images of Ips duplicatus (IPM Images and PaDIL - click to enlarge)
galleries
galleries
details of head
pronotum
posterior end
elytra and abdomen in side view
