Balsam Woolly Aphid in the Southern Appalachians
Abstract:Fraser fir, in the Southern Appalachians, is being rapidly killed by the balsam woolly aphid. The completion of the Blue Ridge Parkway will open a direct route from infested areas to all remaining uninfested fir areas in North Carolina. Trees are killed when activity of the aphid causes them to produce annual growth rings of compression-like wood. Death of Fraser fir rapidly follows 2 to 5 years of aphid infestation on the bole. Aphids in selected areas and on specimen trees can be controlled for at least two years with a single hydraulic application of 1/8-percent benzene hexachloride water emulsion. Four species of predators obtained from Europe show promise in control.
Document Type: Journal Article
Affiliations: Staff of the Southeastern Forest Expt. Sta. Forest Service, U. S. Dept. Agric., Asheville, N. C.
Publication date: January 1, 1965
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- The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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