Field evaluation of the impact of Bt-cotton on non-target soil arthropods in Colombia during 2003-2005 - Rodríguez Chalarca, Jairo; Ospina, C.M.; Mazo Vargas, A.; Salamanca, L.; Peck, D.C.; Tohme, Joseph M.; Bellotti, Anthony C. (International Center for Tropical Agriculture, 2009)