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Oviposition indices (Oi) calculated from two-choice oviposition assays where boxwood plants treated with (a) lavender (b) eucalyptus and (c) cinnamon, and essential oil filled vial-wick dispensers were offered against untreated plants as oviposition sites for box tree moths (Cydalima perspectalis). Columns differing significantly (ANOVA, Games–Howell post hoc test, p < 0.05) are labelled.
