Byers, J.A., Schlyter, F., Birgersson, G., & Francke, W.
1990b. E-Myrcenol in Ips duplicatus: An aggregation
pheromone component new for bark beetles.
Slow rotating pair of sticky traps
Males of the Eurasian bark beetle Ips duplicatus (Coleoptera: Scolytidae), when feeding in
host Norway spruce (Picea abies (L.) Karst.), produced and released
ipsdienol and E-myrcenol, which we show to be aggregation pheromone
components. Bioassays using walking beetles indicated that E-myrcenol
in synergistic combination with ipsdienol is essential for
attraction. Synergism of E-myrcenol and ipsdienol released at natural
rates in the forest was also demonstrated with a new technique using
mechanical slow-rotation of sticky traps.