| Literature DB >> 17453323 |
Miguel Borges1, Jocelyn G Millar, R A Laumann, Maria C B Moraes.
Abstract
The male-produced sex pheromone of the neotropical redbanded stink bug, Piezodorus guildinii (W.) (Hemiptera: Pentatomidae), a serious pest of soybean in Central and South America, was identified as the sesquiterpene hydrocarbon beta-sesquiphellandrene by coupled gas chromatography-mass spectrometry and laboratory bioassays. The identity was confirmed by comparison with an authentic standard, and its absolute configuration was determined to be (7R)-(+)-beta-sesquiphellandrene. The mean rate of release was approximately 40 ng d(-1) male(-1). The compound was found only in extracts from sexually mature males. Laboratory olfactometer bioassays showed that 200 ng of the synthetic compound applied to a filter paper strip was as attractive to female bugs as odors from five 15-d-old live males, an airborne extract from males, or the fraction of the extract that contained (7R)-(+)-beta-sesquiphellandrene.Entities:
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Year: 2007 PMID: 17453323 DOI: 10.1007/s10886-007-9294-1
Source DB: PubMed Journal: J Chem Ecol ISSN: 0098-0331 Impact factor: 2.793