ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

Treffer pro Seite

Treffer 1 - 4 | 4 Treffer

Sortierung

Digitale Medien

Sex pheromone of orange wheat blossom midge, Sitodiplosis mosellana (2000)

Gries, Regine ; Gries, G. ; Khaskin, Grigori ; [weitere]

Springer

Naturwissenschaften 87 (2000), S. 450-454

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 1432-1904

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft

Notizen: 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.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/s001140050757

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

Digitale Medien

Synergistic Sex Pheromone Components of White-Spotted Tussock Moth, Orgyia thyellina (1999)

Gries, Gerhard ; Clearwater, John ; Gries, Regine ; [weitere]

Springer

Journal of chemical ecology 25 (1999), S. 1091-1104

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 1573-1561

Schlagwort(e): Lepidoptera ; Lymantriidae ; white-spotted tussock moth ; Orgyia thyellina ; (Z)-6-heneicosen-11-one ; (Z)-6-heneicosen-9-one ; (Z)-6,(E)-8-heneicosadien-11-one ; sex pheromone ; synergism ; quarantine insect ; international trade ; eradication ; Bacillus thuringiensis ; microbial insecticide

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Chemie und Pharmazie

Notizen: Abstract In 1996, the exotic white-spotted tussock moth (WSTM), Orgyia thyellina (Lepidoptera: Lymantriidae), was discovered in Auckland, New Zealand. Because establishment of WSTM would threaten New Zealand's orchard industry and international trade, eradication of WSTM with microbial insecticide was initiated. To monitor and complement eradication of WSTM by capture of male moths in pheromone-baited traps, pheromone components of female WSTM needed to be identified. Coupled gas chromatographic–electroantennographic detection analysis of pheromone gland extract revealed several compounds that elicited responses from male moth antennae. Mass spectra of the two most EAD-active compounds suggested, and comparative GC-MS of authentic standards confirmed, that they were (Z)-6-heneicosen-11-one (Z6–11-one) and (Z)-6-heneicosen-9-one, the latter termed here “thyellinone.” In field experiments in Japan, Z6–11-one plus thyellinone at a 100:5 ratio attracted WSTM males, whereas either ketone alone failed to attract a single male moth. Addition of further candidate pheromone components did not enhance attractiveness of the binary blend. Through the 1997–1998 summer, 45,000 commercial trap lures baited with 2000 μg of Z6–11-one and 100 μg of thyellinone were deployed in Auckland towards eradication of the residual WSTM population.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1023/A:1020833909739

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

Digitale Medien

Decadienoates: Sex Pheromone Components of Nettle Caterpillars Darna trima and D. bradleyi (2000)

Sasaerila, Yorianta ; Gries, Regine ; Gries, Gerhard ; [weitere]

Springer

Journal of chemical ecology 26 (2000), S. 1969-1981

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 1573-1561

Schlagwort(e): Lepidoptera ; Limacodidae ; Darna trima ; Darna bradleyi ; Setothosea asigna ; Setora nitens ; nettle caterpillars ; oil palm ; sex pheromone ; 2-methylbutyl (E)-7,9-decadienoate ; (E)-2-hexenyl (E)-7,9-decadienoate ; methyl (E)-7,9-decadienoate ; isobutyl (E)-7,9-decadienoate ; (E)-9dodecenal ; (E)-9,11-dodecadienal ; (Z)-9-dodecenal ; (Z)-9,11-dodecadienal

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Chemie und Pharmazie

Notizen: Abstract This study was undertaken to identify sex pheromone components of nettle caterpillars Darna trima and Darna bradleyi (Lepidoptera: Limacodidae) whose larvae defoliate oil palm, Elaeis guineensis, in southeast Asia. Coupled gas chromatographic–electroantennographic detection (GCEAD) analyses of pheromone gland extracts revealed two antennally active compounds produced by female D. trima and two by female D. bradleyi. Molecular structures of these candidate pheromone components were identified by electron-impact and chemical-ionization mass spectrometry; retention-index calculations on DB-5, DB-23, and DB-210 columns; microanalytical treatments, as well as syntheses of "auxilliary" compounds that facilitated identification of the compounds. The compounds from D. trima were 2-methylbutyl (E)-7,9-decadienoate (A) and (E)-2-hexenyl (E)-7,9decadienoate (B); from D. bradleyi we identified methyl (E)-7,9-decadienoate (C), and isobutyl (E)-7,9-decadienoate (D). In field experiments in Malaysia, (S)-2-methylbutyl (E)-7,9-decadienoate (SA) in combination with B proved to be essential and synergistic pheromone components for attraction of male D. trima. (R)-2-Methylbutyl (E)-7,9-decadienoate (RA) had no behavioral activity. Compound D singly attracted male D. bradleyi, but addition of C to D at a 1 : 10 ratio significantly enhanced attractiveness of the bait. Synthetic pheromone blends were more effective trap baits than unmated female moths and could be developed for monitoring populations of D. trima and D. bradleyi in Asian oil palm plantations.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1023/A:1005561127155

Permalink