Hello All,

I'm new here and looking for some support with my:

Paph. Johanna Burkhardt 'Black Diamond' x Paph. rothsuhildianum 'New Balace'

I picked this up from a reputable vendor in my town two weeks ago. It was a healthy looking plant and flowering, although the flowers seemed to be toward the end of their cycle. Approx. five days ago it had a sudden onset of yellowing leaves with accompanying brown spots (see photo). Two of four leaves quickly turned and I believe a third is on its way. When I purchased the orchid all leaves appeared a clean true green. 

For watering, I've kept it moist but not saturated. For light, it's been on a shelf with good all day light, but no direct sunlight at all. For temp, I'm in central california, so moderate through the day (70's) and cooler in the night (60's).

I'm wondering if this is fungal? I've never had an orchid take a turn this fast.

Thank you kindly,

Nick

Share on Social Media:  
  1. Jeanne Uzar Hudson
    4 months ago
    Are the leaves getting wet when you water?
  2. Carol Holdren
    4 months ago
    And they also recommended Sue Bottoms articles posted on the Saint Augustine Orchid Society web site. That was the link I gave.
  3. Carol Holdren
    4 months ago
    So here are what the Paph experts said, “ Fungal or bacterial.... This explains the different kinds really well. Add more air!” And, “if it smells bad it is bacterial”
  4. Carol Holdren
    4 months ago
    https://staugorchidsociety.org/PDF/BacterialBrownSpotbySueBottom.pdf Nick. Check out this article from Sue Bottom. I sent your Paph photo to some growers asking what they thought. Carol

New Comments

  1. Carol Holdren commented on topic "What is the culture for Cattliante Chongkolnee" by Mike Minney
  2. Dianne Mayne commented on topic "Banrot 40WP" by Therese Stecher
  3. Linda Thorne commented on member plant Paphiopedilum Munchkin Mopsi Aru by Linda Thorne
  4. Carol Holdren commented on topic "Orchids wanted St.Croix usvi" by Charles H Wood
  5. William Gorski commented on topic "Is this a species or Primary Hybrid?" by William Gorski
  6. Henry Shaw commented on member plant Coel. Jannine Banks 'Snow White' by Henry Shaw
  7. Carol Holdren commented on topic "Trichocentrum luridum" by Danny Lyon
  8. Carol Holdren commented on topic "How to determine the species composition?" by Chen Jimmy
  9. Lois Lane commented on member plant Ctna. Why Not by Alex Maximiano
  10. Carol Holdren commented on topic "SSPECIES OF ORCHID" by JENNIFER CHARMAN