We consider a class of supersymmetric models containing baryon number violating processes such as observable n-(n) over bar oscillations that are mediated by color triplet diquark fields. For plausible values of the diquark-quark couplings, the scalar diquark with mass between a few hundred GeV and one TeV or so can be produced in the s-channel at the LHC and detected through its decay into a top quark and a hadronic jet. (C) 2010 Elsevier B.V. All rights reserved.