Sex pheromone of orange wheat blossom midge, Sitodiplosis mosellana
Abstract
Pheromone extract of the female orange wheat blossom midge, Sitodiplosis mosellana (Géhin) (SM) (Diptera: Cecidomyiidae), was analyzed by coupled gas chromatographic-electroantennographic detection (GC-EAD) and GC-mass spectrometry (MS), employing fused silica columns coated with DB-5, DB-210, DB-23 or SP-1000. These analyses revealed a single, EAD-active candidate pheromone which was identified as 2,7-nonanediyl dibutyrate. In experiments in wheat fields in Saskatchewan, traps baited with (2S,7S)-2,7-nonanediyl dibutyrate attracted significant numbers of male SM. The presence of other stereoisomers did not adversely affect trap captures. Facile synthesis of stereoisomeric 2,7-nonanediyl dibutyrate will facilitate the development of pheromone-based monitoring or even control of SM populations.
- Publication:
-
Naturwissenschaften
- Pub Date:
- November 2000
- DOI:
- 10.1007/s001140050757
- Bibcode:
- 2000NW.....87..450G
- Keywords:
-
- Fuse Silica;
- Silica Column;
- Facile Synthesis;
- Wheat Field;
- Fuse Silica Column