00000nam 2200000za 4500 9.812520 CaOODSP 20221107141338 cr ||||||||||| 160707s2016 onco ob f000 0 eng d 978-0-660-04799-7 CaOODSP eng n-cn--- Fo123-1/116E-PDF Fidgen, Jeffrey. Detection tools for an invasive adelgid [electronic resource] / [Jeffrey Fidgen, Jean Turgeon]. Sault Ste. Marie : Great Lakes Forestry Centre, c2016. [4] p. : ill. Frontline, forestry research applications. Technical note, 1717-6980 ; No. 116 Issued also in French under title: Outils de détection d’un puceron envahissant. Includes bibliographical references. The hemlock woolly adelgid (HWA) is an alien pest that kills eastern hemlock, an ecologically important foundation species. The detection and delineation of new infestations is increasingly important, as HWA now infests all five American states that share a border with eastern Canadian provinces. We developed two new techniques to improve detection because light infestations can be he hard to detect with visual survey methods. Wool or ball sampling is an active sampling method that targets adelgid wool and has the surveyor launch Velcro®-covered racquetballs with a sling shot into tree crowns. The other is a passive sampling technique that involves laying a sticky trap under a tree for HWA crawlers to land on. The use of these techniques could improve detection and delineation of new HWA introductions/arrivals in Canada and might prove useful for monitoring how its distribution changes over time. Issued also in print. gccst Invasive species gccst Pests gccst Forest management Turgeon, Jean J. Canada. Natural Resources Canada. Canadian Forest Service. Outils de détection d'un puceron envahissant (CaOODSP)9.812524 Detection tools for an invasive adelgid / (CaOODSP)9.812518 Frontline, forestry research applications. Technical note, 1717-6980 ; No. 116 (CaOODSP)9.504873 PDF 1.16 MB https://publications.gc.ca/collections/collection_2016/rncan-nrcan/Fo123-1-116-eng.pdf 36791