Abstract
The sex pheromone of Harrisina brillians Barnes and McDunnough was bioassayed. Of four compounds from female tip dip extracts, only d,l-sec-butyl (Z)-7-tetradecenoate attracted male moths. Further testing showed that the d isomer was the attractant; when the l isomer was added to the d isomer, male attraction was reduced. Dose-response studies showed increased moth attraction with increased amounts of d,l-sec-butyl (Z)-7- tetradecenoate. A 100-μg dose of the d,l pheromone compared to the attraction of two virgin females resulted in an average daily male moth capture of 62% to the 100 μg dose and 38% to the two virgin females. Daily capture peaked at ca. 0845 hours (ca. 3 h into photophase [i.e., after sunrise]).
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