How to deal with Stagnospora

Cynthia Mueller
Sun, 19 Apr 2015 03:25:11 PDT
Thanks for your help, Steven. -Cynthia Mueller

Cynthia W Mueller

> On Apr 18, 2015, at 8:54 PM, Steven Hart <> wrote:
> Hi Cynthia, I have had this break out recently in my zephyranthes & it
> wasn't until you mentioned yours that I realized what it is. We had a very
> wet season & this can cause outbreaks although someone sent this to me in
> dormant bulbs... There is a section on Stagonospora curtisii in our PBS
> wiki, it recommends treatment with bleach, peroxide with water & systemic
> fungicide. A couple of things that might help you reduce spread. Spores are
> air bourn so removing contaminated leaves & burning or carefully disposing
> is important. Replacing contaminated mix with a fresh well drained mix
> reduces dropped spores, because it thrives in moist conditions. Avoid
> watering leaves & bulb during contamination, try to water mix only. Air
> flow or ventilation around them helps mix dry out after watering. Some
> treatments recommended on the web are, destroy the bulbs, also hot water
> treatment, but 100* for 30min would cook them i think, might be ok with big
> bulbs. Others will know exactly which chemicals will help u I hope...
> Best of luck getting it under control, it can spread very fast.
> Steven
> On 19 April 2015 at 09:59, Cynthia Mueller <>
> wrote:
>> I suddenly realized a large container of rain lily 'Katharina' red and
>> yellow forms must have Stagnospora. All leaves are red/reddish brown. Will
>> tip out container tomorrow to see if drainage is impeded inside. Have only
>> experienced this earlier leaf-by-leaf with hippeastrums. What to do next?
>> -Cynthia Mueller, Central Texas
>> Cynthia W Mueller
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> -- 
> Steven : )
> Esk Queensland Australia
> Summer Zone 5  Winter Zone 10
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