Thank you, Uli ! An excellent suggestion. Diane > Johannes Ulrich Urban via pbs <pbs@lists.pacificbulbsociety.net> wrote: > > For unwanted bulbs (im my case Oxalis pes-caprae) the best results have been in covering the soil with material that excludes light. _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…