Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Disparlure and analogues as attractants for Lymantria obfuscata.

Abstract

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.