Brassocattleya leaf turned brown from the bottom up before falling off

[Roberta]

If you only got the plant less than 2 weeks ago, you didn't cause the problem, and probably can't cure it. Can you return this to the seller, or at least notify them? Orchids don't do anything fast, including die... I think this one was already terminally ill when you got it.

[OrchideeNormus]

Originally Posted by Roberta

If you only got the plant less than 2 weeks ago, you didn't cause the problem, and probably can't cure it. Can you return this to the seller, or at least notify them? Orchids don't do anything fast, including die... I think this one was already terminally ill when you got it.

I'm sure I can let them know, but because I've already repotted it and it's been in my care I highly doubt they will give me any kind of refund or replacement. I got it from Orchids By Hausermann. The majority of my collection has come from there. I have seen one youtuber who got an oncidium from them with fusarium, but this is the first 'bad orchid' I've personally ever gotten from them. Well, to the best of my knowledge anyways lol. I will shoot them an email, maybe I'll get lucky
I don't think anything I did caused this, whatever it is, but I guess I don't know for sure either. It's entirely possible the canes got wet and some water got under the sheaths when I did a flush and fresh feed last weekend. I guess I just expected it to dry out fast enough with the low humidity in my house and the constant airflow. If anything it probably was an existing issue and the extra moisture and heat accelerated it. I'm pretty bummed, I'm gonna order some fungicide right now and give it my best shot, for educational purposes if nothing else lol

---------- Post added at 05:25 PM ---------- Previous post was at 05:17 PM ----------

Originally Posted by SouthPark

Hard to say. Fungus maybe? Doesn't look like mealy bugs right now.

I've never seen them in person, but I don't think it looks like mealy bugs either based on what I've seen online. The white build up on the canes looks more like scale or a salt build up. It's crusty. It looks like mycelium big time. I read about it in one of the links in the sticky thread in here. It's the mold that contains whatever the fungus is that causes black rot. I have one Phal that has a build up like this on its roots I thought was a salt build up. I separated it from the rest and am keeping an eye on it now lol. It's been that way a while, but don't want to take any chances!

---------- Post added at 05:31 PM ---------- Previous post was at 05:25 PM ----------

Whoa...$80 to $100 for banrot? Is that right? I'm looking on Amazon right now because that's the most convenient for me and they typically get my stuff to me fast. Im open to suggestions though lol

[Leafmite]

In my experience, this can actually happen very quickly, especially when an orchid is stressed, so I would not blame the vendor, not when it has been over two weeks since the plant was acquired. I have, in the past, watered plants carelessly, and gotten water trapped, then, a few days later, had this happen. What I have done is to carefully remove the infected pseudobulb as soon as possible, use cinnamon mixed with alcohol on the removal spot, then carefully wipe down each pseudobulb and leaf with a cotton ball soaked in isopropyl alcohol, using a different cotton ball for each growth (do not get the alcohol on the roots). Treat with the alcohol twice a day. Apply a source of easily absorbed Calcium immediately (oyster shell, Cali magic, etc.).
Keep the orchid warm and dry for a time (water from the bottom), maybe place near a heating vent so that the warm air blows over the orchid.

Once the orchid shows no further sign of issues after two or three weeks, it will likely be fine. Knowing that it is a little delicate, continue to water from the bottom and continue giving it a little extra Calcium.

Good luck! I know how frustrating this is!