Pheromone gland extracts of the fall webworm,Hyphantria cunea(Lepidoptera:Arctiidae) were analyzed by gas chromatography(GC) and gas chromatography-mass spectrometry(GC-MS).Based on comparison of retention times and m...Pheromone gland extracts of the fall webworm,Hyphantria cunea(Lepidoptera:Arctiidae) were analyzed by gas chromatography(GC) and gas chromatography-mass spectrometry(GC-MS).Based on comparison of retention times and mass spectra of synthetic standards,four compounds were identi-fied as(9Z,12Z)-octadecadienal,(9Z,12Z,15Z)-octadecatrienal,(3Z,6Z,9S,10R)-9,10-epoxy-3,6-heneicosadiene and(3Z,6Z,9S,10R)-9,10-epoxy-1,3,6-heneicosatriene with a ratio of 2:33.6:58.4:6.Trapping tests showed that quaternary blend of these compounds was highly attractive to male H.cunea.Unitraps baited with the quaternary blend loading of 200―300 μg on a gray rubber septum were very effective for monitoring H.cunea populations.展开更多
Electroantennogram responses of fall webworms(Hyphantria cunea) to 55 host volatile compounds were conducted.Results showed that male moths were more responsive to trans-2-hexenyl acetate,nonanal,hexanal,trans-2-hexen...Electroantennogram responses of fall webworms(Hyphantria cunea) to 55 host volatile compounds were conducted.Results showed that male moths were more responsive to trans-2-hexenyl acetate,nonanal,hexanal,trans-2-hexenal,hexanol,isoamyl acetate,acetic acid cis-3-hexenyl ester,ethyl acetoacetate,citronellal and(+)-citronellal,and females were more responsive to hexanol,hexanal,acetophenone,isoamyl acetate,nonanal,trans-2-hexenal,acetic acid cis-3-hexenyl ester,citronellal,cis-3-hexen1-ol and trans-2-hexen-1-ol.Seven bioactive compounds were also selected for further dosage response experiments,and a positive correlation was found between the fall webworm and the tested compounds.A maximum dosage level of 1000 g was tested and found to elicit significantly higher activity from male moths compared with lower(1,10,100 g) concentrations.展开更多
基金Supported by the Beijing Science and Technology Program (Grant No. D0705002040391)Beijing Natural Science Foundation Program (Grant No. 6052018)
文摘Pheromone gland extracts of the fall webworm,Hyphantria cunea(Lepidoptera:Arctiidae) were analyzed by gas chromatography(GC) and gas chromatography-mass spectrometry(GC-MS).Based on comparison of retention times and mass spectra of synthetic standards,four compounds were identi-fied as(9Z,12Z)-octadecadienal,(9Z,12Z,15Z)-octadecatrienal,(3Z,6Z,9S,10R)-9,10-epoxy-3,6-heneicosadiene and(3Z,6Z,9S,10R)-9,10-epoxy-1,3,6-heneicosatriene with a ratio of 2:33.6:58.4:6.Trapping tests showed that quaternary blend of these compounds was highly attractive to male H.cunea.Unitraps baited with the quaternary blend loading of 200―300 μg on a gray rubber septum were very effective for monitoring H.cunea populations.
基金supported by National Basic Research Program of China(2009CB119204)
文摘Electroantennogram responses of fall webworms(Hyphantria cunea) to 55 host volatile compounds were conducted.Results showed that male moths were more responsive to trans-2-hexenyl acetate,nonanal,hexanal,trans-2-hexenal,hexanol,isoamyl acetate,acetic acid cis-3-hexenyl ester,ethyl acetoacetate,citronellal and(+)-citronellal,and females were more responsive to hexanol,hexanal,acetophenone,isoamyl acetate,nonanal,trans-2-hexenal,acetic acid cis-3-hexenyl ester,citronellal,cis-3-hexen1-ol and trans-2-hexen-1-ol.Seven bioactive compounds were also selected for further dosage response experiments,and a positive correlation was found between the fall webworm and the tested compounds.A maximum dosage level of 1000 g was tested and found to elicit significantly higher activity from male moths compared with lower(1,10,100 g) concentrations.
