Lee, S.G., Park, J.D., Park, S.-C., Kim, H.S., Kim, J.K., & Choi, K.S. 1991 [Control of the black pine bast scale, Matsucoccus thunbergianae Miller & Park, in Korea (I). Effects of trunk implantation with systemic insecticides.. Res. Rep. For. Res. Inst. No. 42: 140-145.
Notes: Trunk implantation of systemic insecticides are tested for effectiveness against M. thunbergianae on Pinus thunbergiana.