  New Effelsberg 1.4 GHz observations of the central 10\degr x 10\degr of the
Virgo cluster are presented. NVSS data are used to subtract point sources from
our map. During the data reduction process special care is taken (i) to
disentangle emission from the North Polar Spur from emission from the Virgo
cluster, (ii) to disentangle emission from the strong M87 sidelobes from
emission from the Virgo cluster, and (iii) to correct for non-linear ground
emission due to the long scans. We detect a low surface brightness radio halo
with a flux density of 5 +/- 1.5 Jy centered close to the elliptical galaxy
M86. This halo is much weaker than that observed in the Coma cluster. It is
reminiscent of a past interaction between the intracluster medium of M86 and a
low density gas, belonging most probably to the Virgo cluster.
