Department of Agrotechnology, Faculty of Agriculture, Universitas Muhammadiyah Sumatera Utara
Jalan Kapten Mukhtar Basri No. 3, Medan, North Sumatra 20238 Indonesia Indonesia
Shuhei Takemoto The University of Tokyo Tanashi Forest, The University of Tokyo Forests, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Nishi-Tokyo, Tokyo, Japan 188-0002 Japan
Hiroaki Sato Department of Forest Entomology, Forestry and Forest Products Research Institute, Tsukuba, Ibaraki, Japan 305-8687 Japan
Naoto Kamata The University of Tokyo Chiba Forest, The University of Tokyo Forests, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Kamogawa, Chiba, Japan 299-5503 Japan
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