Details

Autor(en) / Beteiligte

• Naka, H.(National Inst. for Agro-Environmental Sciences, Tsukuba, Ibaraki (Japan))
• Horie, Y
• Mochizuki, F
• Vang, L.V
• Yamamoto, M
• Saito, T
• Watarai, T
• Tsuchida, K
• Arita. Y
• Ando, T

Titel

Identification of the sex pheromone secreted by Synanthedon hector (Lepidoptera: Sesiidae)

Ist Teil von

• Applied Entomology and Zoology, 2008/11/25, Vol.43(4), pp.467-474

Ort / Verlag

JAPANESE SOCIETY OF APPLIED ENTOMOLOGY AND ZOOLOGY

Erscheinungsjahr

2008

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• The Japanese cherry treeborer, Synanthedon hector (Lepidoptera: Sesiidae), is a harmful pest of Prunus trees. After male attraction using a 50 : 50 mixture of (3Z,13Z)- and (3E,13Z)-3,13-octadecadienyl acetates (I and II) was determined, a mating disruptant formulated with the two compounds was developed and commercialized; however, the sex pheromone secreted by S. hector females has not been characterized. Analyses of a pheromone gland extract using gas chromatography (GC) equipped with an electroantennographic detector and GC combined with mass spectrometry showed that virgin females produced two 3,13-dienes, I and II, in addition to (2E,13Z)-2,13-octadecadienyl acetate (III). The ratio of the three components (I : II : III) was about 60 : 36 : 4. In the field, S. hector males were effectively attracted by a lure baited with a mixture of I and II at a ratio of 70 : 30–30 : 70, and III showed neither synergistic nor inhibitory effects on the attraction. Further experiments with other geometrical isomers of the 3,13-dienes indicated that male moths strictly discriminated the configurations of the two double bonds. Mixtures combining one insect-produced isomer (I or II) and other unnatural isomers attracted few males in the field.