Sex Attractant of Sugar Beet Wireworm: Identification and Biological Activity

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Science  12 Jan 1968:
Vol. 159, Issue 3811, pp. 208-210
DOI: 10.1126/science.159.3811.208


The sex attractant produced by adult females of the sugar beet wire-worm, Limonius californicus (Mannerheim) has been isolated and identified as valeric acid. In the laboratory, male wireworm beetles are repelled by the pure attractant but are drawn with intense sexual excitement to its dilute solutions; in the field, male beetles are lured from a distance of 12 meters. The pheromone occurs in unusually large amounts in the female's body.