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| Analysis - view details of type of pest/disease/disorder | |
| Symptoms | Rough shavings extruded from the bark, often mixed with resin; later on enlarged canker-like, with often intense resin flow; underneath the bark irregular, mostly resin soaked feeding tunnels. | |
| Impact | Main attacks on up to 20 years aged spruces; impairment rather low, only in cases of heavy infestation death of branches and tree tops, more rarely death of the whole tree. | |
| Control | Control normally not necessary; only in cases of heavily infested young plants pruning or removal of the plants. | |
| Hosts | Spruce; | |
| Affected plant parts | Shoot/Twig/Branch; Stem; |
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| Dead tree top and lateral branches of a spruce |
Localized roundish feeding pattern underneath the bark, intense resin flow |
Shavings and resin on a spruce's shoot |
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| Shavings on a spruce |
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