مؤلف: William Ciesla

William M. Ciesla studied forestry and forest entomology at the State University of New York, College of Environmental Science and Forestry. He is a forest health specialist and has held positions with USDA Forest Service, Food and Agriculture Organization of the United Nations and as a forest health consultant. He has worked in over 30 countries, is author/co-author of over 160 publications and is the 2005 recipient of the Western Forest Insect Work Conference, Founder”s Award.