Before testing, spend some time image-searching under the possible causes and see if you can get closer to the suspected organism or cultural issue. That's gonna help focus any subsequent testing. The pics you shared reminded me of rust infections on arisaemas, and also of Dasheen Mosaic virus symptoms. erik Listen to 'Designers of Paradise' <http://rasa.ag/designers/> @Green_Heart <><><><><><><><><><><><><><><> *"It's far too late for pessimism" - Dee Hock* *“Another world is not only possible, she is already on her way. On quiet days I can hear her breathing.” * - Arundhati Roy * "Although my view is as vast as space, when it comes to the nature of actions and their consequences, I am extremely precise, like little particles of flour." * -Padmasambhava *"You don't need to do everything. Do what calls your heart; effective action comes from love. It is unstoppable, and it is enough."⠀*~ Joanna Macy On Wed, 22 Jan 2020 at 15:39, Arnold Trachtenberg via pbs < pbs@lists.pacificbulbsociety.net> wrote: > I've thought of that and haven't had any testing done. > Arnold > > > > -----Original Message----- > From: Bonaventure Magrys <bonaventure@optonline.net> > To: pbs <pbs@lists.pacificbulbsociety.net> > Sent: Wed, Jan 22, 2020 9:29 am > Subject: [pbs] Arum decline and then some > > No one has mentioned the dreaded V word: virus. Sometimes these build up > in a collection or in old plants. Have you done any testing? > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > http://lists.pacificbulbsociety.net/cgi-bin/… > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > http://lists.pacificbulbsociety.net/cgi-bin/… > _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…