The effectiveness of using ovarian extract from the female cheese skipper, Piophila casei, as a lure to trap males of this species
Author of the article:LI Ying** QI Jing-Wei XIONG Yan QIAN Xiao-Xiang SU Fa-Wu XIAO Chun DONG Wen-Xia***
Author's Workplace：College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
Key Words：College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
Abstract： [Objectives] To investigate whether sex pheromones extracted from the ovary of the cheese skipper, Piophila casei, are effective lures for trapping males of this species. [Methods] The behavioral and electroantennogram (EAG) responses of male cheese skippers to ovarian extracts were measured, and an experiment comparing the effectiveness of different trapping lures was conducted in a simulated warehouse. [Results] Significantly more male cheese skippers choose the ovarian extract than the control (acetone). EAG results indicate that all tested doses of the extract elicited EAG responses from males, and all tested doses trapped more males than the control in a non-choice experiment. A choice experiment indicated that a dose equivalent to the amount of pheromone obtained from 2 females was the most attractive to males. [Conclusion] The ovarian extract of female cheese skippers was significantly more attractive to males than a control substance.