Jan Samanek, Phytosanitary Administration, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Barbara Tokarska-Guzik, University of Silesia, Bugwood.org

Barbara Tokarska-Guzik, University of Silesia, Bugwood.org

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Barbara Tokarska-Guzik, University of Silesia, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Michael Shephard, USDA Forest Service, Bugwood.org

Barbara Tokarska-Guzik, University of Silesia, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Barbara Tokarska-Guzik, University of Silesia, Bugwood.org

Michael Shephard, USDA Forest Service, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org