PPT-Hemlock Woolly adelgid

Tennessee Division of Forestry Background History of HWA Hemlock woolly adelgid HWA Adelges tsugae is a nonnative insect pest that kills native eastern and carolina hemlocks Tsuga canadensis . Repeated attacks weaken trees cause twig gouting kill branches and over the course of several years cause trees to die What is at risk There are nearly 19 billion balsam fir trees in Mi chigans forests And as the third largest Christmas treegrowing invasiveplantsabca Habitat Woolly burdock grows in most soil types but pre fers moist loamy well drained soils in full sun Identi64257cation Stems Stems can grow to 250 cm and are branched Stems are erect and grooved with white cobwebby hairs Stems a It was first observed in Queens New York in 1908 Now Found in 13 states including New Hampshire Elongate Hemlock Scale Elongate Hemlock Scale Fiorinia Fiorinia externa externa Jen Weimer NH Division of Forests Lands brPage 4br EHS Infestation in Woolly aphid colony showing live purple aphids (R. Bessin, University of Kentucky)ENTFACT-219 PathologistUniversity of Kentucky College of AgricultureThe woolly apple aphid differs from other apple ap Department of Agriculture Forest Service Northeastern Area NA-PR-01-02 Nymphs and adults of elongate hemlock scale, Fiorinia externa, on the lower surface of hemlock Nymphs and adults of circular he The EASTERN HEMLOCK. Tsuga canadensis. Presented by:. Jayme Longo . Why Hemlocks are Important. Scenic Beauty. 1. Erosion Control. 2. Hydrology Modification. Cooling Temperatures -. Trout Habitat. 3. woolly adelgid resistance. E. Preisser, B. Maynard, R. . Casagrande. No reported resistance in . Tsuga canadensis. or . T. . caroliniana. Western . hemlock. W. hemlocks resist eastern HWA. and E. hemlocks resist western HWA. Distinctive featuresHemipteranWhite wooly massesAdults dark purple to blackAbout 1 mm FlightlessFirst instars and crawlers amberOnly females in North AmericaASEXUAL REPRODUCTION! http://bugguide.net/n Threatened by Hemlock Woolly AdelgidDavid A. Orwig, Harvard Forest &David Kittredge, UMass Extension he introduced HEMLOCK WOOLLY ADELGID (HWA; Adelges tsugae Annand) continues to migrate nor “An Outdoor Wonderland”. By: Penny . Hartwick. LIBM 6320. September 26, 2011. (. Hartwick. , P. Personal Photograph. September 10, 2011) . Mission . Statement. The mission of Woolly Hollow State Park is to provide quality recreational opportunities to meet the needs of the park visitors and to enhance the outdoor experience and safeguard the needs of the park visitors and to enhance the natural, cultural, and historical resources by providing exceptional facilities and skilled leadership. . Background History of HWA. Hemlock woolly . adelgid. (HWA) . (. Adelges. . tsugae. ) . is a non-native insect pest that kills native eastern hemlock . (. Tsuga. . canadensis. ). . HWA was first discovered in Virginia in 1951 and as of 2012 has spread to 18 eastern states where it has significantly altered or reduced native hemlock populations . combining predictive modeling with monitoring. . Tara M. Barrett. 1 . ,Greg Latta. 2. , Paul E. Hennon. 3. , Bianca N.I. Eskelson. 2. , . Hailemariam. Temesgen. 2. 1. Unaffiliated. 2. Oregon State University. By. Owen McKenna. Since hemlock woolly adelgid populations in New England suffer from high mortality due to extreme winter cold snaps, population success relies heavily upon . reinfestation. (Parker et al., 1999). The high density regions, or hot spots, of hemlock woolly adelgid within a forest likely ensure the success of these . 1mm small wingless insect. Has 2 – 4 generations per year. Injects toxic saliva that damages tree’s vascular tissues, eventually killing the tree. Transported in crawler stage by wind, animals, and people.