TY - JOUR T1 - Erratum: Efficacy of Arborjet Viper Microinjections in the Management of Hemlock Woolly Adelgid (<em>Adelges Tsugae</em>) JF - Arboriculture &amp; Urban Forestry (AUF) SP - 203 LP - 206 DO - 10.48044/jauf.2005.026 VL - 31 IS - 4 AU - Joseph J. Doccola AU - Ilangovan Ramasamy AU - Paulina Castillo AU - Christine Taylor AU - Samantha Sifleet Y1 - 2005/07/01 UR - http://auf.isa-arbor.com/content/31/4/203.abstract N2 - Hemlock woolly adelgid (Adelges tsugae Annand) is an introduced homopteran that infests native eastern hemlock (Tsuga canadensis Carriere). It results in reduced tree vitality and, when untreated, death. A state-of-the-art microinjection device employing an air-over-hydraulic system was used to deliver a therapeutic dosage of imidacloprid into the active xylem tissues of affected hemlocks. Bioassays were conducted microscopically to determine HWA mortality post-treatment. Injected trees had significantly (P &lt; 0.05) lower HWA populations compared to untreated controls; mean mortality for injected trees was over twice that of noninjected trees. The Arborjet VIPER system shows promise as a management tool in the treatment of HWA. ER -