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Abstract
The gypsy moth,
Lymantria dispar (L.), is the most serious insect defoliator of trees in the Eastern United States. It is currently established in the area northeast of a line from Michigan to Virginia, and occupies most of the Adirondack and Laurentian Mixed Forest Provinces dominated by northern hardwood, spruce and fir forests. The range of the moth continues to expand to the west and south at a rate of 10-15 miles per year and is beginning to enter the Eastern Broadleaf Forest Province dominated by oak-hickory forests. Evaluation of potential impacts from gypsy moth defoliation on oak-hickory forests must now be based on studies conducted in the Eastern United States. Forest management strategies based on extrapolations from eastern forest types are unlikely to yield satisfactory results in the Central States.
Citation
Lawrence, Robert; Burks, Susan; Haugen, Dennis; Linit, Marc. 1997. The gypsy moth in the central hardwoods: research and management needs. In: Pallardy, Stephen G.; Cecich, Robert A.; Garrett, H. Gene; Johnson, Paul S., eds. Proceedings of the 11th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-188. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station: 58