Peach shoot volatiles were attractive to mated female oriental fruit moth, Cydia molesta (Busck), in a dual choice arena. Twenty-two compounds were identified in headspace volatiles of peach shoots using gas chromatography-mass spectrometry. A bioassay-assisted fractionation using different sorbent polymers indicated an attractant effect of compounds with a chain length of 6-8 carbon atoms. The major compounds of this fraction were tested either singly or in combinations for behavioural response of females. Significant bioactivity was found for a synthetic three-component mixture which elicited a similar attractant effect as the full natural blend from peach shoots as well as the bioactive fraction.
Species 1: Lepidoptera Tortricidae Cydia molesta (Oriental Fruit Moth)
Keywords: plant-insect interactions, attractant
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