Sex Attractant Pheromone of the Tea Tussock Moth, Euproctis pseudoconspersa (STRAND) (Lepidoptera: Lymantriidae) : Identification and Field Attraction

Abstract

Three compounds were identified from the extracts of abdominal tips of the tea tussock moth, Euproctis pseudoconspersa (STRAND). The major EAG-active component was identified as 10, 14-dimethylpetadecyl isobutyrate (10Me14Me-15: iBu) and the minors were 14-methlypentadecyl isobutyrate (14Me-15: iBu) and 10, 14-dimethylpentadecyl n-butyrate (10Me14Me-15: nBu). Amounts of these compounds in the extract were ca. 10, 0.6 and 0.6 ng/female, respectively. 10Me14Me-15: iBu showed a potent attractant activity to wild male moths, and the trap catch seemed to increase when 14Me-15: iBu was blended with 10Me14Me-15: iBu, even though 14Me-15: iBu alone showed almost no attractant activity.