Assessment of Sasajiscymnus tsugae, Scymnus sinuanodulus, and Laricobius nigrinus
Jones, Cera Elizabeth
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Eastern hemlock, Tsuga canadensis, and Carolina hemlock, Tsuga caroliniana, are being threatened by the invasive hemlock woolly adelgid, Adelges tsugae. Adelges tsugae, is currently found throughout most of the range of T. canadensis and the entire range of T. caroliniana and arrived in Georgia in 2003. In an attempt to preserve the hemlocks, biological control predatory beetles Sasajiscymnus tsugae, Laricobius nigrinus, and Scymnus sinuanodulus are being mass reared and released. The objectives considered in this research are to: 1. Determine establishment of these biological control agents in the North Georgia mountains. 2. To determine aestivation survival and time of emergence of L. nigrinus.
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Villanassery-Joseph, Shimat (uga, 2010-05)The goals of this work were to improve control of hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae). The first project focused on manipulating tree health and adelgid populations using low rates of ...
Abiotic and biotic factors influencing eastern hemlock (Tsuga canadensis) health and hemlock woolly adelgid (Adelges tsugae) success in the southern Appalachian Mountains Mech, Angela Marie (uga, 2015-05)For over 30 years, the exotic hemlock woolly adelgid (Adelges tsugae Annand) (Hemiptera: Adelgidae) has caused widespread deterioration of eastern hemlock [Tsuga canadensis (L.) Carrière] in the eastern U.S. In the ...
Potential impacts of eastern hemlock (Tsuga canadensis) demise on aquatic macroinvertebrates in a Georgia Appalachian stream Pitt, Daniel Brian (uga, 2012-08)Tsuga canadensis (eastern hemlock) may face ecological extinction in Georgia due to the invasion of Adelges tsugae (hemlock woolly adelgid). We were concerned that hemlock demise would impact stream invertebrates in three ...