Hi Fred and all, I have had a long term adversarial relationship with Stagonospora Curtisii, but have learnt to live with it within bounds. Since I have around 300 hybrid Hippeastrum cultivars growing robustly in naturalised low native grasses, and below natural sandstone ledges it depends on seasonal Spring conditions as to whether there is a small or major outbreak of Stagonospora Curtisii. This winter and the first two weeks of Spring were very dry and there was no sign of Stagonospora. However it has now rained and showered constantly for the past 5 weeks - with the wettest period in Spring here in Sydney for the past 50 years, and Stagonospora has now infested around 60% of all the Hippeastrum cultivars. However in most flowering seasons the level of infestation is temporary. My containment method is to remove and dispose of all infected leaves with the red staining and yellowing coloration of the leaves- and as soon as it stops raining long enough to apply a foliar spray of a Phosacid Systematic fungicide. Its active constituent is 200g/litre Phosphorus acid present as Mono-D Potassium Phosphite. It works wonders in containing the fungus and when applied during a growth period it gives plants and seedlings a growth spurt or counteract the diminishment of healthy leaf activity caused by the fungus.. I continue spraying fortnightly if its not raining (no watering) - but if there are further periods of rainfall I wait again until rainfall eases before another spray of the fungicide. The only other task is to pray for the rain to ease. Cheers Jim ----- Original Message ----- From: "Fred Biasella" <arlen.jose@verizon.net> To: "Pacific Bulb Society" <pbs@lists.ibiblio.org> Sent: Monday, December 12, 2011 4:21 AM Subject: [pbs] Stagonospora Curtisii help > Hello Folks, > > I have a pot of Hippeastrum Reticulatum var. Striatifolium that is showing > signs of the dreaded red blotch on the their bulbs. All the literature > I've > read says that a systemic fungicide should be applied to the leaves for > treatment. The only problem is that they're entering their dormant period > and have stared shedding their leaves. Can anyone suggest a course of > action? I really enjoy theses little beauties and I don't want to lose > them, > nor do I want to endanger my countless other amaryllids!!! > > Warm Regards and Thanks, > Fred Biasella > Cambridge (Boston) MA > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/