  We discuss two production mechanisms of the $J^{PC}=1^{-+}$ exotic meson,
hadroproduction, using pion beams and photoproduction.
  We show that the ratio of exotic to non-exotic, in particular the $a_2$,
meson production cross sections is expected to be by a factor of 5 to 10
larger, in photoproduction then in hadroproduction. Furthermore we show that
the low-t photoproduction of exotic meson is enhanced as compared to hadronic
production. This findings support the simple quark picture in which exotic
meson production is predicted to be enhanced when the beam is a virtual $Q\bar
Q$ pair with a spin-1 (photon) rather then with a spin-0 (pion).
