It depends on the stage of rotting your hippeastrum is at. If the leaves are drooping and yellowing then I would repot into perlite and move into sunlight and water sparingly. As others have said previously, if the hippeastrum shows obvious signs of rotting in the "bulb" itself then you can try removing the rotted material as best you can until you have only healthy layers. If it is localised to just a section of the bulb then I find that cutting out the rotted section and keeping as much of the basal plate (base where the roots form from) and healthy roots as possible can have success but it is a long road back and expect more failures than success. If it is all over then remove the leaves like an onion until you are left with healthy leaves on your basal plate. Throw out the old potting mix regardless and repot using an open medium such as perlite when trying to save your bulb. This forum is pretty good for ideas and you can find many examples on youtube covering multiplying/dividing "chipping" a hippeastrum by cutting a bulb to form bulbils etc which is essentially what you are doing by cutting your bulb to remove rotted components. Some varieties are far more prone to rot than others especially with rich soil and the addition of organic material which is the usual cause of rot coupled with over watering. Killing your hippeastrum with love. Best wishes and good luck. On 19 Dec 2016 9:26 AM, "Arnold140" <arnold140@verizon.net> wrote: > Frank > > How do you treat outdoor bulbs? > > Arnold > New Jersey > > Sent from my iPhone > > > On Dec 18, 2016, at 4:06 PM, Frank via pbs <pbs@lists.ibiblio.org> > wrote: > > > > The narcissus bulb fly is one of my most despised pests. Besides > attacking vacationing Hippeastrum it will also infest narcissus, galanthus, > lycoris, and leucojum bulbs and I would keep an eye on these as well since > they are probably also under attack and are likely the source of your > infestation. > > Daffodils and snowdrops here will fade away in a year or two if left > untreated. I really hate these things. > > _______________________________________________ > > pbs mailing list > > pbs@lists.ibiblio.org > > http://pacificbulbsociety.org/list.php > > http://pacificbulbsociety.org/pbswiki/ > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ >