关键词: 苹毛丽金龟, 植物挥发物, EAG反应, 行为反应, Y型嗅觉仪

Abstract: In order to screen attractive chemicals for trapping males and females Proagopertha lucidula (Faldermann), 11 plant volatiles that can trap male and female adults of other scarabs were used to test the electroantennogram (EAG) value and the taxis behavior of P. lucidula adults. The results showed that among the 11 test chemicals at the dosage of 10 μg, only (Z)-3-hexen-1-ol, geraniol, anethol and eugenol induced clear EAG response, while the other 7 chemicals elicited weak EAG response. The four compounds that induced clear EAG responses at the dose of 10 μg/μL elicited the dose-dependent EAG response. The taxis behavior of the beetle to the volatiles that induced clear EAG responses was also assayed at the doses of 1, 10 and 100 μg with Y-tube olfactometer. Corrected response percentages of both males and females to (Z)-3-hexen-1-ol, geraniol anethol and eugenol were significantly different from that of the hexane control. The study will provide the foundation for developing attractive chemicals for P. lucidula in fields.

Key words: Proagopertha lucidula, plant volatiles, EAG response, behavioral response, Y-tube olfactometer