About YAZAKI KEN'ICHI
About 森林研究・整備機構 森林総合研
About 森林と林業
About forest damage
About plant death
About plant disease
About Bursaphelenchus xylophilus
About Monochamus alternatus
About secretory tissue
About tracheid
About Cell Wall
About rosin
About pine tree withering
About resin canal
About pit
About Tylenchomorpha
About invertebrate
About membrane and film
About biomembrane
About Turpentine
About Plant damages caused by Nematodes(=nema,threadworms,eelworms)
About 松