Akiba, M. and Nakamura, K. (2005) Susceptibility of adult trees of the endangered species Pinus armandii var. amamiana to pine wilt disease in the field. J. For. Res. 10 : 3-7.
Beckenbach, K., Blaxter, M., and Webster, J.M. (1999) Phylogeny of Bursaphelenchus species derived from analysis of ribosomal internal transcribed spacer DNA sequences. Nematology 1 : 539-548.
Bedker, P.J. and Blanchette, R.A. (1988) Mortality of Scots pine following inoculation with the pinewood nematode, Bursaphelenchus xylophilus. Can. J. For. Res. 18 : 574-580.