Title: | "Identification of sex pheromone components from pheromone gland volatiles of the tomato looper,Plusia chalcites (Esp.)" |
Author(s): | Dunkelblum E; Snir R; Gothilf S; Harpaz I; |
Address: | "Institute of Plant Protection, ARO The Volcani Center, 50 250, Bet Dagan, Israel" |
ISSN/ISBN: | 0098-0331 (Print) 0098-0331 (Linking) |
Abstract: | "The sex pheromone glands ofPlusia chalcites release, dodecyl acetate, (Z)-7-dodecenyl acetate, (Z)-9-dodecenyl acetate, 11-dodecenyl acetate, (Z)-8-tridecenyl acetate, and (Z)-9-tetradecenyl acetate. A combination of capillary GC, GC-MS, and dimethyl disulfide derivatization enabled a rigorous identification of all these compounds, some of which were previously found in gland extracts. Bioassays in a flight tunnel showed that a ternary blend of (Z)-7-dodecenyl acetate, (Z)-9-dodecenyl acetate, and (Z)-9-tetradecenyl acetate elicited directed flights from 85 to 100% of the males tested and elicited copulation attempts, at the end of the flights, from 44 to 74% of the males tested. This blend was equal in activity to the natural gland extract. Addition of the other acetates had only a slight influence on the activity of this mixture. Substitution of either (Z)-9-dodecenyl acetate or (Z)-9-tetradecenyl acetate in this blend by 11-dodecenyl acetate gave two ternary mixtures which also elicited high levels of courtship activity, almost as high as that of the original blend. Addition of (Z)-7-dodecenyl alcohol inhibited almost totally the flight activity of males" |
Notes: | "PubMed-not-MEDLINEDunkelblum, E Snir, R Gothilf, S Harpaz, I eng 1987/05/01 J Chem Ecol. 1987 May; 13(5):991-1003. doi: 10.1007/BF01020533" |