1. Laboratory of Sericulture and Apiculture, Department of Crop Science, School of Plant Science, Agricultural University of Athens, Athens, Greece
2. Laboratory of Apiculture-Sericulture, Faculty of Agriculture, Forestry and Natural Environment, School of Agriculture, Aristotle University, Thessaloniki, Greece
3. Department of Agriculture, Ministry of Agriculture, Rural Development and Environment of Cyprus, Strovolos, Cyprus
4. Institute of Mediterranean Forest Ecosystems and Forest Products Technology, NAGREF, Athens, Greece