The invention relates to novel 4-biphenyl-substituted 4-substituted
pyrazolidine-3,5-diones of the formula (I) ##STR00001## in which A, D,
G, W, X, Y and Z are as defined above, to processes and intermediates for
their preparation and to their use as pesticides and/or microbicides
and/or herbicides. Moreover, the invention relates to selective
herbicidal compositions comprising both the 4-biphenyl-substituted
4-substituted pyrazolidine-3,5-diones and a crop plant
compatibility-improving compound.