Evidence is presented which indicates that the removable wax layer on juvenile leaves of several species of Encalyptus provides protection from grazing by the Eucalyptus tortoise beetle, Paropsis charybdis, by preventing the adult beetles from gaining a foothold. Other possible roles of Eucalyptus leaf waxes, particuarly those related to frost resistance, are considered in the light of the present observations.
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Penelope B. Edwards (1982) studied this question.
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