Beech bark disease first occurred when the scale insect was accidently introduced on plant material imported to Nova Scotia from Europe around 1890 . It is found throughout northeastern U.S. states and southeastern Canadian provenances and is still expanding. The disease distribution is generally attributed to the initial phase of the insect life cycle (“crawlers”) just after hatching, which is the only mobile phase of the life cycle. The “crawlers” can move to other areas on the same tree and can be dispersed by wind, birds, animals or humans. The mortality rate in beech has been significant in areas throughout the eastern United States. The loss of beech trees in some areas, where other hardwood species are rare, is causing even greater impact on wildlife, especially for black bear (Ursus americanus) [6, 12]. Pesticide control proved to not be fully effective in reducing the number of scale insects due to their protective waxy covering . Neither pesticide application nor removal of infested trees is practical in large natural areas, because of labor, financial and environmental constraints . Attempts to control C. faggisuga using a bio-agent such as a predatory mite [Allothrombium mitchelli Davis (Acari: Trombidiidae)] is currently under investigation .