Improved preparation of (E)-?-farnesene and its activity with economically important aphids
- 1 August 1982
- journal article
- research article
- Published by Springer Nature in Journal of Chemical Ecology
- Vol. 8 (8) , 1111-1117
- https://doi.org/10.1007/bf00986981
Abstract
(E)-β-Farnesene, the major component of the alarm pheromone of many aphids, is prepared in 65% yield by passing commercial nerolidol through an evacuated column of alumina, treated with pyridine, at 200° C. The product is stored without air and applied to aphids as vapor at low speed (ca. 230 mm/sec) in air or nitrogen. The response of eight economically important aphid species was assessed in the laboratory; over 90% ofMyzus persicae responded in a large scale trial.Keywords
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