Entomologia Generalis (1996) 21, 17-25

S. Prien, F. Stähr, F. Kost and T. Wittig (1996)
Befallsdisposition von Fichtenbeständen für Borkenkäfer bei Vorliegen neuartiger Waldschäden im Thüringer Wald (Coleoptera: Scolytidae)
[Disposition for bark beetle infestation of spruce stands with new-type forest damage symptoms in the Thuringian Forest (Coleoptera: Scolytidae)]
Entomologia Generalis 21 (1/2), 17-25
Abstract: Older spruce stands of the Oberhof Forestry District in the Thuringian Forest where conspicuous symptoms of a 'new-type forest damage' occur since the beginning of the 80s, have been investigated for their disposition to bark beetle attack. Out of 300 sample trees, 49% were infested by the Large spruce bark-beetle, Ips typographus Linnaeus 1758; 36% of these infested ones died. A significant correlation between bark beetle infestation and symptoms of the 'new-type forest damage' could not be evidenced by statistical measures. A tendency towards a greater disposition of these trees to infestation is obvious however.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: German)

Research topic(s) for pests/diseases/weeds:
damage/losses/economics

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ips typographus	Spruce (Picea)	Germany