| abstract |
The invention provides a method for identifying volatile insect repellents and/or attractants released from their non-volatile glycosides by the action of -glucosidase on plant tissue extracts. By this method, geraniol was identified as codling moth repellent and methyl salicylate, (2R, 5R)-theaspirane, and (2S, 5R)-theaspirane, and to a lesser extent linalool and benzyl alcohol as codling moth attractants. The invention provides compositions comprising said repellent and attractants and methods for control of codling moth in fruit, preferably apple, orchards. |