Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
orchestrate [ˈɔːkɪstreɪt] vt (stage-manage) организо́вывать (организова́ть perf) (MUS) оркестрова́ть (impf/perf)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.