THE Identification of chemicals involved in the interaction of oscinella frit with avena sativa
HAMILTON, R.J. | Munro, J. | ROWE, J.M.
Oscinella frit have been reared in large numbers over a 2-year period using oat plants as host. The attraction between frit fly and oat shoots can be said to be partly visual and partly chemical. Extraction of oat plants with four solvent systems, e.g. 80% ethanol, acetone, chloroform: methanol and chloroform enabled an active fraction to be obtained which attracts frit fly. A synergistic interaction between the lipid and non-lipid fraction of oats is reported for the first time. The lipid material has been separated and the substance suspected to be responsible for the attraction of frit fly has been classified as a hydroxybetadiketone.
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