Trail Pheromone of the Argentine Ant, Linepithema humile (Mayr) (Hymenoptera: Formicidae)

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Abstract

*[We report the first chemical analyses of the trails laid by living Argentine ants & find that (Z)-9-hexadecenal is not present in a detectible quantity. Instead, two iridoids, dolichodial & iridomyrmecin, appear to be the primary chemical constituents of the trails. Laboratory choice tests confirmed that Argentine ants were attracted to artificial trails comprised of these 2 chemicals significantly more often than control trails. Although (Z)-9-hexadecenal was not detected in natural trails, supplementation of artificial dolichodial+iridomyrmecin trails with an extremely low concentraion of (Z)-9-hexadecenal did increase the efficacy of the trail-following behavior.]

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Choe, D. H., Villafuerte, D. B., & Tsutsui, N. D. (2012). Trail Pheromone of the Argentine Ant, Linepithema humile (Mayr) (Hymenoptera: Formicidae). PLoS ONE, 7(9). https://doi.org/10.1371/journal.pone.0045016

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