  Using an effective hadronic Lagrangian with physical hadron masses and
coupling constants determined either empirically or from SU(4) flavor symmetry,
we study the production cross sections of charm mesons from pion and rho meson
interactions with nucleons. With a cutoff parameter of 1 GeV at interaction
vertices as usually used in studying the cross sections for $J/\psi$ absorption
and charm meson scattering by hadrons, we find that the cross sections for
charm meson production have values of a few tenth of mb and are dominated by
the s channel nucleon pole diagram. Relevance of these reactions to charm meson
production in relativistic heavy ion collisions is discussed.
