Affiliation:
1. Department of Crop Science, Swedish University of Agricultural Sciences, Box 44, S-230 53 Alnarp, Sweden
2. Department of Organic Chemistry, Royal Institute of Technology, S-100 44 Stockholm, Sweden
Abstract
Abstract
The antennal responses of codling moth females, Cydia pomonella, to volatiles from apple branches with green fruits were recorded by electroantennography coupled to gas chroma tography. The antennae strongly responded to 4,8-dimethyl-1,3(E),7-nonatriene, linalool, β-caryophyllene, (E)-β-farnesene, germacrene D, (Z,E)-α-farnesene, (E,E)-α -farnesene and methyl salicylate. These compounds were all present in volatile collections on Porapak Q from both living and cut branches. Analysis by the solid phase microextraction technique (SPME) showed that the emission of some electrophysiologically active compounds increased after branches had been cut, especially 4,8-dim ethyl-1,3(E),7-nonatriene, linalool and (E,E)-α-farnesene. The identification of apple volatiles eliciting antennal responses is the first step towards the identification of compounds mediating host-finding and oviposition in codling moth females.
Subject
General Biochemistry, Genetics and Molecular Biology
Cited by
29 articles.
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