Effectiveness, persistence, and residue of amitraz plastic strips in the apiary control of Varroa destructor Ignazio Floris, Alberto Satta, Vincenzo Luigi Garau, Marinella Melis, Paolo Cabras and Naima AloulApidologie, 32 6 (2001) 577-585DOI: https://doi.org/10.1051/apido:2001145