About KANETANI SEIICHI
About 森林総合研 九州支所
About TETSUKA KENSHI
About 屋久島・ヤクタネゴヨウ調査隊
About Pinus
About plant damage
About endangered species
About Kagoshima prefecture
About vegetation
About Cryptomeria japonica
About natural forest
About exotic species
About air pollutant
About plant death
About Bursaphelenchus xylophilus
About island
About Tylenchida
About environmental conservation
About ecosystem
About Bursaphelenchus mucronatus
About Cryptomeria japonica
About Pinus armandii
About Yaku Island
About forest vegetation
About forest ecosystem
About forest preservation
About plant disease and insect damage
About Plant damages caused by Nematodes(=nema,threadworms,eelworms)
About Forest botany
About Nature conservation
About Ecosystems
About 屋久島
About 森林生態系
About 絶滅危惧種
About ヤクタネゴヨウ
About 保全