Flüchtige Inhaltsstoffe von Crotalaria ochroleuca und deren Wirkung auf Schadinsekten / Volatile Constituents from Crotalaria ochroleuca and Their Effect on Pest Insects

H. J. Bestmann; M. Pietschmann; K. Steinmeier; O. Vostrowsky

doi:10.1515/znc-1991-7-813

Open Access Published by De Gruyter June 2, 2014

Flüchtige Inhaltsstoffe von Crotalaria ochroleuca und deren Wirkung auf Schadinsekten / Volatile Constituents from Crotalaria ochroleuca and Their Effect on Pest Insects

H. J. Bestmann , M. Pietschmann , K. Steinmeier and O. Vostrowsky

From the journal Zeitschrift für Naturforschung C

https://doi.org/10.1515/znc-1991-7-813

By means of GC -FTIR , GCMS and GC analysis more than 70 components of the steam distillate of seeds and leaves from Crotalaria ochroleuca (Fabaceae, Papilionaceae) were found and partially identified, most of them being aliphatic hydrocarbons, aldehydes and fatty acids. Weak, but significant repellency of the seeds, its steam distillate as well as of the seed oil com ponent 2-isopropyl-3-methoxypyrazine, 2-isobutyl-3-methoxypyrazine and 2-pentylfuran was observed with the curculionid beetle Sitophilus zeamays. Furthermore, no attractivity of fresh leaves was found for a number of test insects.

: Crotalaria ochroleuca; Seed Oil; 2-Isopropyl-3-methoxypyrazine; 2-Pentylfuran; Sitophilus zeamays; Repellency

Received: 1991-3-20

Revised: 1991-4-19

Published Online: 2014-6-2

Published in Print: 1991-8-1

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Flüchtige Inhaltsstoffe von Crotalaria ochroleuca und deren Wirkung auf Schadinsekten / Volatile Constituents from Crotalaria ochroleuca and Their Effect on Pest Insects

Journal and Issue

Articles in the same Issue