RT Journal Article
SR Electronic
T1 Erratum: Efficacy of Arborjet Viper Microinjections in the Management of Hemlock Woolly Adelgid (<em>Adelges Tsugae</em>)
JF Arboriculture &amp; Urban Forestry (AUF)
FD International Society of Arboriculture
SP 203
OP 206
DO 10.48044/jauf.2005.026
VO 31
IS 4
A1 Doccola, Joseph J.
A1 Ramasamy, Ilangovan
A1 Castillo, Paulina
A1 Taylor, Christine
A1 Sifleet, Samantha
YR 2005
UL http://auf.isa-arbor.com/content/31/4/203.abstract
AB 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.