PDF-Hemlock Forests

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. The New York Declaration on Forests Section 1 is a non legally binding political declaration that grew out of dialogue among governments companies and civil society spurred by the Secretary 57630577185763057740576025771158203577445734757362577115769 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 Fast Edge Detection. Piotr Dollár and Larry Zitnick. what defines an edge?. Brightness. Color. Texture. Parallelism. Continuity. Symmetry. . …. Let the data speak.. 1. Accuracy. 2. Speed. I. data driven edge detection. By: Joe Beck III and . Tayler. . Termeer. Conium . maculatum. A member of the parsley family. Up to 6 . ft. tall and has purple spots on the stem. . Grows on fertile soils across the U.S.. Tennessee Division of Forestry. Background History of HWA. Hemlock woolly adelgid (HWA) (. Adelges tsugae) . is a non-native insect pest that kills native eastern and carolina hemlocks. . (. Tsuga canadensis . 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. Tennessee Division of Forestry. Background History of HWA. Hemlock woolly adelgid (HWA) (. Adelges tsugae) . is a non-native insect pest that kills native eastern and carolina hemlocks. . (. Tsuga canadensis . Economic, Social and Environmental Values. Tim White. School of Forest Resources and Conservation. 138 NZ Hall, UF, IFAS. 846-0850; tlwhite@ufl.edu. June, 2011. Objectives. Importance of Forests:. Economic benefits. RUSSIAN TAIGA. Taiga is the largest zone of the plant. s. in Russia. It covers nearly 60% of the country and . o. n this area . it . focuses on more than 80% of all the forests of Russia. Taiga can be divided into two sub-zones: the taiga zone proper and . 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 . cast. Junhui. Zhao, Douglas A. Maguire, Douglas B. Mainwaring, Alan . Kanaskie. Background. Young Douglas-fir plantations (≤40 yr) are tremendously important to the economic and environmental health of Oregon and Washington due to their extent and productivity (Campbell et al. 2004, Gray et al. 2005). . Adults and nymphs are 1/16. th. of an inch long and very hard to find. It produces a white wool-like covering to protect itself and its eggs. Hemlock Woolly . Adelgid. Life Cycle. Eggs are protected by woolly sacs that are produced by adult . Modeling the impacts of hemlock woolly adelgid infestation and presalvage harvesting on carbon stocks in northern hemlock . forests. Jeffrey Krebs, Jen Pontius and Paul . Schaberg. Mapping relative risk of HWA impacts on hemlock growth across the northeast. 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 .