1. ENDA, N. (1972) Drop-off procedure of the pine wood nematodes from the pine sawyer. Trans. 24th Ann. Meet. Kanto Branch Jpn. For. Soc., p. 32 (in Japanese).
2. HASHIMOTO, H. and T. SANUI (1974) The influence of inoculation quantities of Bursaphelenchus lignicolus MAMIYA et KIYOHARA on the wilting disease development in Pinus thunbergii PARL. Trans. 85th Ann. Meet. Jpn. For. Soc., pp. 251-253 (in Japanese).
3. HOSODA, R. and K. KOBAYASHI (1976) Drop-off procedures of the pine wood nematodes from the pine sawyer. Trans. 27th Ann. Meet. Kansai Branch Jpn. For. Soc., pp. 255-258 (in Japanese).
4. KISHI, Y. (1978) Invasion of pine trees by Bursaphelenchus lignicolus M. & K. (Nematoda: Aphelenchoidae) from Monochamus alternatus HOPE (Coleoptera: Cerambycidae). J. Jap. For. Soc. 60: 179-182 (in Japanese).
5. KISHI, Y. (1980) Mortality of pine trees caused by Bursaphelenchus lignicolus M. & K. (Nematoda: Aphe-lenchoidae) in Ibaraki Prefecture and its control. Bull. Ibaraki For. Exp. Stn. 11: 1-83 (in Japanese with an English summary).