Catasetum bulb black spot
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Old 01-13-2020, 02:43 AM
silanah77 silanah77 is offline
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Catasetum bulb black spot

Originally Posted by SouthPark View Post
Silanah -- I took this photo this morning .... attached. The rot region totally dried. No issues with the bulb. The original grey brown region has become a dark brown dried patch. None of my other catasetum orchids had this.

The cause wasn't sunburn. And the original ominous colouring was exactly like that in your photo. My application of yates anti-rot phosacid stopped the attack of whatever it was.

Thank you, SouthPark for the photo! I'm happy that you save your orchid - it looks very good! I think my patches were a little different and l'm pretty sure that they were because of overwatering-I just didn't have to spray water on the roots the last time before my vacation...Anyway, now the plant is dormant, I don't see any black spots any more. Although the orchid doesn't look as pretty as before, I hope to save it. Thank you again and have a nice day!
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Old 01-13-2020, 03:14 AM
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SouthPark SouthPark is online now
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Catasetum bulb black spot Male

Originally Posted by silanah77 View Post
I think my patches were a little different
Most welcome silanah. The colour of the patches (originally, when I first encountered the issue several months ago) - not shown in the photo that I took this morning - were exactly the same tones and colour as you showed in your original photo.

In the photo that I uploaded, the patches are now dried to a dark brown colour. The regions remain sunken-in a little bit, but totally dry and hardened up.

Nice to hear there are no more blackening regions with your bulb!

Last edited by SouthPark; 01-13-2020 at 06:20 AM..
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