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Title: Fir Engraver (FIDL)
Author: Ferrell, George T.;
Source: Forest Insect & Disease Leaflet 13. [Berkeley, CA:] U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station
Publication Series: Forest Insect and Disease Leaflet (FIDL)
Description: The fir engraver, Scolytus ventralis LeConte, belongs to the family of insects called bark beetles, which live between the bark and wood of host trees. A wide-ranging, native beetle, the fir engraver attacks most species of fir in the Western United States. Epidemics can cause severe tree mortality. From 1977 to 1978, for example, the fir engraver killed an estimated 1.2 million trees, totaling 114 million board feet (650,000 ma), on the National Forests in northern California. Other outbreaks have been more localized, but the resulting losses have still been severe. In New Mexico, some 37,000 trees were killed in 1954 on about 700 acres (2,800 ha) in the Cibola National Forest.
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Ferrell, George T. 1986. Fir Engraver (FIDL). Forest Insect & Disease Leaflet 13. [Berkeley, CA:] U.S. Dept. of Agriculture, Forest Service, Pacific Southwest Research Station
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