אסיף מאגר המחקר החקלאי

Optimized mixture of sex pheromonal components for trapping of male Spodoptera littoralis in Israel

Year:

1982

Source of publication :

Authors :

Volume :

10

Co-Authors:

Dunkelblum, E., Div. of Pesticide Residues and Natural Products Chemistry, ARO, The Volcani Center, Bet Dagan, Israel
Kehat, M., Div. of Entomology, ARO, The Volcani Center, Bet Dagan, Israel
Gothilf, S., Div. of Pesticide Residues and Natural Products Chemistry, ARO, The Volcani Center, Bet Dagan, Israel
Greenberg, S., Div. of Entomology, ARO, The Volcani Center, Bet Dagan, Israel
Sklarsz, B., Chemistry Department, Bar-Ilan University, Ramat Gan, Israel

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Abstract:

The sex pheromone gland extracts of Spodoptera littoralis (Boisd.) in Israel were reexamined by capillary gas chromatography and capillary gas chromatography combined with mass spectrometry. The following compounds were identified: (Z)-9-tetradecenyl acetate (46%), (Z,E)-9,11-tetradecadienyl acetate (33%), (Z,Z)-9,11-tetradecadienyl acetate (4%), (E)-11-tetradecadienyl acetate (9%), (Z)-11-tetradecenyl acetate (7%), and (Z,E)-9,12-tetradecadienyl acetate (0.5-1%). Field tests with various combinations of the major attractant (Z,E)-9,11-tetradecadienyl acetate and the minor components indicated that the best lure for S. littoralis in Israel is 2 mg (Z,E)-9,11-tetradecadienyl acetate containing 0.2-1% of (Z,E)9,12-tetradecadienyl acetate. © 1982 Springer Science + Business Media B.V.

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