EAG Responses of the Fruit- and Pinaceae-Feeding Type of Yellow Peach Moth, Conogethes punctiferalis(GUENEE)(Lepidoptera : pyralidae)to Monoterpene Compounds

Abstract

EAG responses to 21 monoterpene compounds were compared between the two types of the yellow peach moth, Conogethes punctiferalis (GUENEE). The fruit-feeding type (FFT) females responded more highly to 17 compounds than males, whereas no sexual difference was found in the Pinaceae-feeding type (PFT). Both sexes of PFT responded to alcohols, aldehydes and ketones significantly higher than did FFT. The cluster analysis of EAG responses of each type showed a definite difference in the antennal olfactory spectra between FFT and PFT. From these facts, it was concluded that FFT and PFT are probably taxonomically different species.