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*Yuichi Yamaura
Department of Forest Entomology, Forestry and Forest Product Research Institute
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Susumu Ikeno
Ibaraki Branch, Wild Bird Society of Japan
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Makoto Sano
Bureau of International Partnership, Forestry and Forest Product Research Institute
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Kimiko Okabe
Department of Forest Entomology, Forestry and Forest Product Research Institute
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Kenichi Ozaki
Department of Forest Entomology, Forestry and Forest Product Research Institute