  Evidence has recently been presented for the existence of a dibaryon of mass
2380 MeV/c^2 and width 70 MeV/c^2, which decays strongly into the d pi0 pi0
channel [M. Bashkanov et al., Phys.Rev.Lett. 102 (2009) 052301; P. Adlarson et
al., arXiv:1104.0123]. The decay rate of such a hypothesised dibaryon into the
{pn}_{I=0} pi0 pi0 channel is estimated in a weakly model-dependent way by
using final state interaction theory. It is shown that, if the resonance
exists, it should then show up as strongly in this channel as in d pi0 pi0. The
sum of the two decay modes would saturate most of the inelasticity predicted in
the relevant partial waves in the 2380 MeV/c^2 region.
