Joe Doccola of ArborJet on discussing hemlock tree health after treatment. This footage was taken during an experimental research project assisted by Bill Hascher, chief arborist of The Biltmore Estate.
WMV: 1.1M   MOV: 1.8M

Michael Skinner, naturalist at Balsam Mountain Preserve on homeowner use of insecticides.
WMV: 1M   MOV: 2.5M

Brian Eisenback, of the Virginia Tech Entomology Department discussing chemical vs. biological control of HWA.
WMV: 1.5M  

Glen Taylor, park biologist at the Great Smoky Mountains National Park on hemlock tree grow-back after treatment.
WMV: 1M