CONTROLLING OF INSECT-PARASITES OF ALFALFA LEAFCUTTING BEESTOCK (MEGACHILE ROTUNDATA F., HYMENOPTERA, MEGACHILIDAE) Jenö FARKAS, László SZALAY and Zoltán TISZAIApidologie, 16 2 (1985) 171-180DOI: https://doi.org/10.1051/apido:19850207
