MALE SEX ATTRACTANTS FOR SOME LEPIDOPTEROUS PESTS OF THE GENERA EVERGESTIS AND PYRAUSTA (LEPIDOPTERA, PYRALIDAE)

A male sex attractant was discovered for Pyrausta verticalis as (E)-9- dodecenyl acetate. Males of other species attracted to different doses of this compound included also Blasthestia turionella, Cnephasia oxya canthana, C. virgaureana, and Cydia cosmoforana. The mixtures of (Z)-7 -dodecenyl acetate / (Z)-9-tetradecenyl acetate, and of (Z)-9-tetradec enal / (Z)-11-hexadecenal were observed to attract males of Evergestis extimalis and E. frumentalis, respectively. The attractive activity o f the blend of (Z)-7-dodecenyl acetate / (Z)-9-tetradecenyl acetate to wards male E. aenealis was also indicated.