Results of a combined analysis are presented for the production of &ohgr; and &fgr; mesons in&pgr;Nreactions in the near-threshold region using throughout a conventional “non-strange” dynamics based on such processes which are allowed by the non-ideal &ohgr;-&fgr; mixing. We find a strong difference between observables in &ohgr; and &fgr; production reactions caused by the different role of the nucleon and nucleon resonance amplitudes. A series of predictions for the experimental study of this effect is shown. ©2001 American Institute of Physics.