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Article: Survey for potential predators of the elongate hemlock scale in Tennessee and North Carolina.(Scientific Notes)(Report)
- Article from:
- Florida Entomologist
- Article date:
- December 1, 2006
- Author:
CopyrightCOPYRIGHT 2006 Florida Entomological Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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The elongate hemlock scale, Fiorinia externa Ferris (Hemiptera: Diaspididae) (EHS), is an invasive insect from Japan (Takagi 1963) that feeds on the needles of eastern hemlock, Tsuga canadensis (L.) Carriere. This diaspidid often co-exists with the exotic hemlock woolly adelgid, Adelges tsugae Armand (Hemiptera: Adelgidae), throughout the northern United States (McClure 2002), where they cause extensive damage to eastern hemlock and threaten to disrupt forest composition. EHS invaded eastern hemlocks in the southern Appalachian range and has become well established in western North Carolina and eastern Tennessee. Heavily-infested trees were discovered in Mar 2004 in two ...
<0.05) with R. lophanthae, C. stigma, and S. horni comprising the dominant species. Scymnillus horni was the only species found at the Bays Mountain Park site, and S. loweii was only found at the Lynnhurst Cemetery site. Although more specimens of S. horni were found on the south side of the tree and higher numbers of R. lophanthae were found on the north side of the tree, no differences (n = 80, df = 3, H>
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