Barbara Tokarska-Guzik, University of Silesia, 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

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

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

Jan Samanek, Phytosanitary Administration, Bugwood.org

Jan Samanek, Phytosanitary Administration, Bugwood.org