Study on the Effect of Natural Control on M. matsumurae and D. spectabilis A STUDY ON SELECTION OF GEOGRAPHICAL PROVENANCE OF PINUS TABULAEFORMIS RESISTING MATSUCOCCUS MATSUSCOCCUS MATSUMURAE KUWANA The impact of climate change on matsucoccus matsumurae dispersal in Northeast of China The Differences of Infection by Japanese Pine Bast Scale between Thin- and Thick-Bark Masson Pine Genetic Differentiation of Matsucoccus matsumurae from Three Geographic Populations in China Morphology, Behavior and Natural Enemies of Matsucoccus matsumurae (Homoptera: Matsucoccidae) during Development OBSERVATIONS ON THE STYLET AND THE PARASITICAL SITE SEGMENT OF JAPANESE PINE BAST SCALE