Abstract: Orius strigicollis is a current predatory natural enemy with strong predation ability. In the present study, kidney bean (Phaseolus vulgaris) pods were used as the oviposition substrate for O. strigicollis, and the preference of the oviposition area on kidney bean pods was studied. Additionally, an efficient utilization method of the oviposition substrate was further analyzed. Results showed that more than 90% eggs of O. strigicollis were laid in the pod seams, and more than 50% eggs were laid in the pod seams of the bean tip. Cutting the tip of kidney bean at an angle of 45°and waxing the cut was a feasible method. The method could maintain good sealing of the incision within 5 d, and kept the bean tip fresh, and did not affect the egg hatching, which indicated that this utilization method of oviposition substrate was feasible. The results provided scientific basis for the propagation and product creation of O. strigicollis in future.

Key words: egg hatching, oviposition substrate, kidney bean pod, Orius strigicollis, biological control