Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz (1999) 72, 137-152

Gerhard H. Schmidt, L. Schmidt and H. Mucha (1999)
Fahigkeiten von differenziert bestückten Borkenkäferpheromonenfallen in einem niedersächsischen Forstgebiet bei Hannover während der Jahre 1992 und 1993
[Captivity of pheromone bark beetle traps differently baited set up in a forest area of Lower Saxony, near Hanover, in 1992 and 1993]
Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz 72 (6), 137-152
Abstract: In the years 1992 and 1993 black THEYSOHN slit-traps were set up in a forest area near Hanover, Germany. The traps were baited with combinations of the synthetic bark beetle pheromones Pheroprax®, Chalcoprax®, Linoprax®, and Cembrax®. Their captivity was tested in comparison to singly baited and control traps without pheromone. Additionally, combinations of Pheroprax + Cembrax and Linoprax + Cembrax were tested. The captivity numbers obtained from Ips typographus, Pityogenes chalcographus, Xyloterus lineatus and X. domesticus were discussed in relation to the differently baited traps. In the latter three species, females and males were separated. The periods of flight activity of the four Scolytidae baited were ascertained for both years.
Concerning the singly baited traps, Pheroprax captured the highest amount of Ips typographus per trap, its population increased 9% in 1993 related to that of 1992. For P. chalcographus, the combination of the four pheromones resulted in a little higher number of individuals than in singly baited traps. Xyloterus lineatus preferred the four-pheromone combination, in which Linoprax was present showing a synergistic effect of baiting. In contrary, the baiting of X. domesticus was lower by the combined pheromones than by Linoprax alone. The latter was found in lower numbers than X. lineatus. The trapped amounts of both Xyloterus species were continuously reduced throughout the years 1989 to 1993.
The Coleoptera species, not specially trapped, amounted yearly to 0.6-0.7% of the collected individuals: P. chalcographus was collected to 85-87%, and Ips typographus to 11-14% of the total amount of Coleoptera trapped.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: German)
Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
pheromones/attractants/traps

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ips typographus		Germany
	Pityogenes chalcographus		Germany
	Trypodendron lineatum		Germany
	Trypodendron domesticum		Germany