测定青杨脊虎天牛雌、雄成虫对13种植物挥发物的电生理和行为反应。结果表明:丁香酚、2-苯乙醇、糠醛、柠檬烯、月桂烯5种挥发物在最大浓度下(1mol·L^-1)均能引起雌雄成虫强烈的触角电位反应(P〈0.01);行为反应测试表明:柠檬烯在高于或等于10-3mol·L^-1的浓度时对雌虫均有引诱作用(P〈0.01),在1和10-1mol·L^-1浓度下能够引诱雄虫(P〈0.01);丁香酚于10-1和10-1mol·L^-1浓度下对雌、雄成虫均有引诱作用(P〈0.01);2-苯乙醇在10-1和10-2mol·L^-1浓度下均能引诱雌、雄成虫(P〈0.01);浓度为1和10-1mol·L^-1的糠醛对雌、雄成虫产生驱避作用(P〈0.01);月桂烯只在10-1mol·L^-1浓度下对雌、雄成虫有引诱作用(P〈0.01);其他挥发物对青杨脊虎天牛均无明显定向作用。
The electroantennogram(EAG) and behavioral responses of female and male beetles of Xylotrechus rusticus to 13 plant volatiles were tested. The female and male adults exhibited very strong EAG responses(P〈 0. 01) to 1 mol·L^-1 Eugenol,2-Phenylethanol,furfural,limonene and myrcene. Limonene exhibited lure effect to females adult(P〈 0. 01) ,when the concentration higher than or equal to 10-3 mol·L^-1 and exhibited lure effect to males at 1 and 10-1 mol·L^-1(P〈 0. 01) concentrations. Eugenol exhibited lure effect to females and males at 10-1 and 10-2 mol·L^-1(P〈 0. 01);2-Phenylethanol showed lure effect to females and males at 10-1 and 10-2 mol·L^-1 concentrations(P〈 0. 01) . Furfural exhibited repellent effect to females and males at 1 and 10-1 mol·L^-1 concentration(P〈 0. 01) . Myrcene exhibited lure effect to females and males at 10-1 mol·L^-1 concentration(P〈 0. 01) . Females and males showed no distinct directional behavior to the other volatiles.