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J Chem Ecol

Title:		"Diel rhythms of calling behavior and pheromone production of oriental tobacco budworm moth,Helicoverpa assulta (Lepidoptera: Noctuidae)"
Author(s):		Kamimura M; Tatsuki S;
Address:		"Laboratory of Applied Entomology, Faculty of Agriculture, University of Tokyo, Bunkyo-ku, 113, Tokyo, Japan"
Journal Title:		J Chem Ecol
Year:		1993
Volume:		19
Issue:		12
Page Number:		2953 - 2963
DOI:		10.1007/BF00980595
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"Both calling behavior and titer of (Z)-9-hexadecenal (Z9-16: Al), the major sex pheromone component ofHelicoverpa assulta, in pheromone glands showed distinct diel periodicity, and these two were synchronous. Calling was most actively performed and the pheromone titer reached a maximum from 2 to 6 h after lights-off. During photophase, no calling was shown and only a relatively small amount of Z9-16:A1 was detected. However, there was a time lag of a few days between peak calling activity and maximum pheromone titer. The pheromone titer was maximal from age 1 day to age 5 days and thereafter decreased while calling was most actively performed after age 3 days. Titers of three minor components, hexadecenal, (Z)-11-hexadecenal, and (Z)-9-hexadecenyl acetate, showed similar daily fluctuation patterns to that of Z9-16:Al, but relative to the titer of Z9-16:Al, the titer of the two aldehyde components remained relatively constant whereas that ofZ9-16:Ac increased in the late scotophase"
Keywords:
Notes:		"PubMed-not-MEDLINEKamimura, M Tatsuki, S eng 1993/12/01 J Chem Ecol. 1993 Dec; 19(12):2953-63. doi: 10.1007/BF00980595"