Hello Marek. Hi everyone ! Could it be possible that it is Hippeastrum scale mite ? I'm not sure what it looks like when it is developing, but the mite gets in between the layers of the leaf, cause some scale damage & a by product of their damage is a visible reddish mark underneath the scale on the leaf surface. Some rust problems also start with a similar scaly look & the redness could be spoors developing. If u treated your plants for both or similar symptoms, u should cover a range of other similar problems. Make sure u spray well into the centre of the new growth not just the infected outer areas. Best of luck Steven > http://mwalnik.wodip.opole.pl/botanika/foto/… . > > Marek Walnik > Glucholazy, Poland > Zone 6, by planting mainly on a windowsill > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/