This protocol follows the method of Arzone and Vidano (1980) applied for spray products but adapted to soil/seed treatments. This method has been applied in Italy in order to investigate the effects of pesticides drifted from maize seed dressing on honey bees when bees forage in the edge of the maize field during sowing operation (APENET, 2009, 2010; Sgolastra et al., 2012).