Methanol extracts of fresh leaves of
Citrus plants induce oviposition behavior by females of the
Cyrils-feeding swallowtail butterfly,
Papilio xuthus L. One of the oviposition stimulants was isolated from an extract of
Citrus unshiu Marc, and identified as 6, 8-di-
C-β-D-glucopyranosylapigenin. The compound was inactive alone, but elicited oviposition behavior when mixed with another component which has not yet been identified.
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