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    Author(s): Li Li; Wenhua Lu; Michael Montgomery; Roy Van Driesche; Scott Salom
    Date: 2007
    Source: In: Gottschalk, Kurt W., ed. Proceedings, 17th U.S. Department of Agriculture interagency research forum on gypsy moth and other invasive species 2006; Gen. Tech. Rep. NRS-P-10. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 65.
    Publication Series: General Technical Report - Proceedings
    Station: Northern Research Station
    PDF: View PDF  (34.63 KB)

    Description

    Chinese and American institutions formed a partnership in 2005 for the purpose of studying and obtaining natural enemies for biological control of Adelges tsugae Annand, the hemlock woolly adelgid (HWA), in the eastern United States. We report here the first 6 months (June-November) of studies conducted in Yulong (Lijiang) County in Yunnan Province. Previously, Scymnus sinuanodulus, S. camptodromus and S. yunshanpingensis had been collected there for shipment to the United States. There are four study sites between altitudes of 2600 and 3200 meters in transitional forest. Besides the hemlocks, Tsuga dumosa or T. forrestii, spruce, fir, pine, Keteleeria, and Taxus are present along with hardwoods such as oak, birch and poplar.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Li, Li; Lu, Wenhua; Montgomery, Michael; Van Driesche, Roy; Salom, Scott. 2007. Hemlock woolly adelgid and its natural enemies in Yunnan Province, China: first-year (2005) results. In: Gottschalk, Kurt W., ed. Proceedings, 17th U.S. Department of Agriculture interagency research forum on gypsy moth and other invasive species 2006; Gen. Tech. Rep. NRS-P-10. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 65.

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