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General Impact Asian longhorn beetles (Anoplophora glabripennis) slowly kill trees over an estimated 3-5 year period, this period may be longer for some tree species. In their native China about 40% of poplar plantations are known to have been damaged (ca. 2.3 million ha.) by the beetle. 240 cities or counties have been infested in 5 provinces alone (totalling 230 thousand ha), and, an estimated 50 million trees were cut down over a 3 year period in Ningxia Province alone (1991-1993). The beetle causes severe damage from 21-43 degrees north latitude and 100-127 degrees east longitude (represents 4 climatic zones in China: the Transitional Zone between the Tropical Zone to the south and the Warm Temperate Zone to the north; and the Warm Temperate Zone; the Cool Temperate Zone, and the Arid Temperate Zone). In the US, where they are introduced, approximately 5,286 and 1,547 infested trees have been cut down in New York and Chicago, respectively, as of May 2001. In Austria, around 47 infested trees have been cut down (as of August 2001).          Location Specific Impacts: United States (USA)   Economic/Livelihoods: Though the spread of the beetle has been very slow, there is concern that the potential impact of the pest to forests could result in the loss of 71 billion trees valued at $2 trillion, and a loss of value of $669 billion (30% canopy/1.2 billion trees). Other potential impacts include losses to the forestry products and tourism industry.