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Sex Pheromone of th...
Sex Pheromone of the Introduced Pine Sawfly, Diprion similis (Diprionidae), Revisited: No Activity of Earlier Reported Synergists
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Anderbrant, Olle (författare)
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Lyons, D. Barry (författare)
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- Bång, Joakim (författare)
- Mittuniversitetet,Institutionen för naturvetenskap, teknik och matematik (-2012)
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visa fler...
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- Hedenström, Erik (författare)
- Mittuniversitetet,Institutionen för naturvetenskap, teknik och matematik (-2012)
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- Högberg, Hans-Erik (författare)
- Mittuniversitetet,Institutionen för naturvetenskap, teknik och matematik (-2012)
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visa färre...
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(creator_code:org_t)
- Engelska.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Extracts of Diprion similis females were found to contain about 15 ng of the sex pheromone precursor 3,7-dimethylpentadecan-2-ol per female. When analysing the extracts after derivatisation with (2S)-2-acetoxypropionyl chloride, we found that the major stereoisomer in the extract was (2S,3R,7R)-3,7-dimethylpentadecan-2-ol. Also other stereoisomers of 3,7-dimethylpentadecan-2-ol were identified in the extract namely, 1% of (2R,3S,7S) , 0.3% (2R,3R,7R) and 0.4% of (2R,3R,7S). An unknown fifth substance showed an identical spectrum to 3,7-dimethylpentadecan-2-ol, both in SIM and full scan mode. In field tests in Ontario, Canada, the earlier identified main pheromone component, viz. the propanoate of (2S,3R,7R)-3,7-dimethylpentadecan-2-ol, was tested alone and in combination with other stereoisomers, earlier reported to be synergistic. In none of the tests were any synergistic effects detected and the threo four-isomer blend was as attractive as the pure main compound. Thus, one of the few examples of a diprionid sawfly using more than one substance in its sex pheromone could not be confirmed. The results also suggest that monitoring programs can use the more easily synthesized threo-blend without losing efficiency.
Ämnesord
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Nyckelord
- Hymenoptera
- Symphyta
- Semiochemical
- Attractant
- Chemical analysis
- Gas-chromatography
- Mass-spectroscopy
- Pheromone trap
Publikations- och innehållstyp
- vet (ämneskategori)
- ovr (ämneskategori)