METHODOLOGY FOR ISOLATION AND IDENTIFICATION OF INSECT PHEROMONES WITH REFERENCE TO STUDIES ON CALIFORNIA 5-SPINED IPS

The general methodology involved in isolating and identifying insect pheromones is discussed. Examples are taken from studies of the sex attractant produced by males of the California five-spined ips, Ips confusus (LeConte). Three terpene alcohols that are believed to be the principal components of the attractant were isolated and identified. These compounds are (-)-2-methyl-6-methylene-7-octen-4-ol, (+)-cis-verbenol, and (+)-2-methyl-6-methylene-2,7-octadien-4-ol.