Abstract Synthesis and biological evaluation of (E)-and (Z)-8-tetradecenyl formate (3, 4) as pheromone mimics was executed. A 10: 1 mixture of the (E)-and (Z)-formate was shown to be as attractive as a 10: 1 mixture of (E)-and (Z)-10-hexadecenal (1, 2)(genuine pheromone) in a 100-ng dose against the male yellow peach moth, Dichocrocis punctiferalis.