抄録
A bioassay method was established to identify the sex pheromone of the sugarcane shoot borer, Tetramoera schistaceana SNELLEN (Lepidoptera: Olethreutinae), an important sugarcane pest in Okinawa. The bioassay method was based on observation of the mating behavior of male moths in a small glass flight tunnel. Before the experiment, male moths were kept after emergence at 25°C under continuous light. Four hours before the bioassay, the light was switched off and the temperature was decreased to 20°C. Male moths could be used four times for this bioassay. These moths were kept at 25°C under continuous light for 2 days before the next bioassay.