Richard A. Casagrande, University of Rhode Island, Bugwood.org

Mark Schwarzlander, University of Idaho, Bugwood.org

USDA Forest Service - Forest Health Protection Intermountain Region - Ogden, UT , USDA Forest Service, Bugwood.org

Neal Spencer, USDA Agricultural Research Service, Bugwood.org

Neal Spencer, USDA Agricultural Research Service, Bugwood.org

Neal Spencer, USDA Agricultural Research Service, Bugwood.org