Forestry Commission Midlothian, ScotlandU.K.

401 Brooks Hall West Virginia University Morgantown, WV 26506-6057

Ege University Faculty of Agriculture Department of Plant Protection Bornova, 35100-IZMIRTurkey

Institut fur PflanzenernahrungUniversitat HohenheimStuttgart, Germany

University of Pretoria

University of Pretoria

University of Pretoria