Choi, K.S., Lee, S.G., Shin, S.C., Park, J.D., & Lee, S.M. 1998 [Within-tree distribution of the black pine bast scale, Matsucoccus thunbergianae, intermediate nymphs on 10-15 year old Japanese black pines.]. Journal of Forest Science No. 57, 146-150.

Notes: The spatial distribution of Matsucoccus thunbergianae intermediate nymphs on the Japanese black pine (Pinus thunbergii) was studied at two locations in the southern coastal province of the Korea Republic. Using one tree as a sample unit, Taylor's power law analysis indicated that M. thunbergianae intermediate nymphs were distributed in clumped spatial patterns on the stem;, with 78.8-80.7% of all nymphs distributed on the stem, and 19.3-21.2% on the branches in late February. The lower (56.8-57.4%) part of the stem had significantly more intermediate nymphs than the upper part (14.6-14.7%) and the twigs (27.9-28.5%).