Fig. 1. The reduction in the attraction of Dendroctonus brevicomis in flight to its aggregation pheromone components exo-brevicomin
(E), frontalin (F), and myrcene (M) by an inhibitory pheromone, ipsdienol (Id), as shown by the comparison of daily catch totals on
6 pairs of traps from July 1 to 6, 1980, in the Sierra National Forest, California.
The carch totals for treatment and check are shown alternating each day to indicate random placement of ipsdienol.
Byers, J.A. 1982. Male-specific conversion of the host plant compound,
myrcene, to the pheromone, (+)-ipsdienol, in the bark beetle,
Dendroctonus brevicomis. Journal of Chemical Ecology
8:363-371.
Chemical Ecology