Disparlure and analogues as attractants for Lymantria obfuscata.
During trap studies in Kashmir in 1972, disparlure (cis-7,8-epoxy-2-methyloctadecane), the synthetic sex attractant of Lymantria (Porthetria) dispar (L.), and 55 related compounds were tested with L. obfuscata Wlk. a pest of forest and fruit trees. Disparlure and technical disparlure (a mixture of 85% of the cis isomer and 15% of the trans isomer) were the most effective compounds. Disparlure did not seem to act as a sex pheromone, but served as a specific attractant for L. obfuscata, other species being consistently attracted to it. It will therefore be useful in survey work.