Entomologia Generalis (1996) 21, 55-67

H. Wigger (1996)
Populationsdynamik und Räuber-Beute-Beziehung zwischen dem Borkenkäfer-Räuber Nemosoma elongatum und dem Kupferstecher Pityogenes chalcographus (Coleoptera: Ostomidae, Scolytidae)
[Population-dynamics and predator-prey-interaction between the predator Nemosoma elongatum and the bark beetle species Pityogenes chalcographus (Coleoptera: Ostomidae, Scolytidae)]
Entomologia Generalis 21 (1/2), 55-67
Abstract: Population-dynamics of the predator Nemosoma elongatum Linnaeus 1758 and of the bark beetle Pityogenes chalcographus Linnaeus 1758 were investigated with pheromone traps in different conifer-stands in 1991-1993. The proportion of predators in traps baited with Chalcoprax varies considerably between 1991 and 1993 with a local maximum of 20%. The population of Nemosoma elongatum increases earlier in spring than that of Pityogenes chalcographus, so reduction of the bark beetle population by predation may therefore be relatively high in V and VI.
(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:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
population dynamics/epizootiology
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Pityogenes chalcographus		Germany
Nemosoma elongatum (predator)	Pityogenes chalcographus		Germany