Co-Authors:
Mozes-Koch, R., Department of Entomology, Fac. Agric., Food and Environ. Sci., Hebrew University of Jerusalem, POB 12, Rehovot 76100, Israel
Slabezki, Y., Beekeeping Division, Extension Service, Ministry of Agriculture, POB 7054, Tel-Aviv, Israel
Efrat, H., Zerifin Breeding Apiary, ARS, Volcani Center, POB 6, Bet Dagan 50250, Israel
Kalev, H., Department of Entomology, Fac. Agric., Food and Environ. Sci., Hebrew University of Jerusalem, POB 12, Rehovot 76100, Israel
Kamer, Y., Zerifin Breeding Apiary, ARS, Volcani Center, POB 6, Bet Dagan 50250, Israel
Yakobson, B.A., Kimron Veterinary Institute, Bet Dagan 50250, Israel
Dag, A., Beekeeping Division, Extension Service, Ministry of Agriculture, POB 7054, Tel-Aviv, Israel
Gerson, U., Department of Entomology, Fac. Agric., Food and Environ. Sci., Hebrew University of Jerusalem, POB 12, Rehovot 76100, Israel