Soybean proteinase inhibitor and the foraging strategy of free flying honeybees François-Xavier Dechaume-Moncharmont, Hichem Azzouz, Odile Pons and Minh-Hà Pham-Delègue Apidologie, 36 3 (2005) 421-430 Published online: 07 July 2005 DOI: 10.1051/apido:2005031