Occurrence of bark-feeding damage by sika deer (Cervus nippon) was examined at 26 mixed plantations comprised of both sugi (Cryptomeria japonica) and hinoki cypress (Chamaecyparis obtusa) in Mie Prefecture, central Japan. There was no significant difference in damage ratios with the tree species in plantations with only slight damage. In plantations with a damage ratio over 5% in either tree species, hinoki cypress was debarked at a higher ratio than sugi. Hinoki cypress was damaged over a longer period than sugi. More effective countermeasures against debarking might be required for a longer period for hinoki cypress than for sugi trees.
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Vol. 42 • No. 2