yellow Phal leaf

[LJA]

Lisa, has that plant been in repeated bloom for a long time? In other words, did the same spike bloom, then branch, then bloom again? Many times, a phal's depleted energy will cause what you're seeing there.

If repeated blooming is not the case, unpot the plant and check the roots. I'd be willing to bet that either critters have chomped on them, or that the non-aerial ones have rotted.

[momokev]

Lisa, has that plant been in repeated bloom for a long time? In other words, did the same spike bloom, then branch, then bloom again? Many times, a phal's depleted energy will cause what you're seeing there.

If repeated blooming is not the case, unpot the plant and check the roots. I'd be willing to bet that either critters have chomped on them, or that the non-aerial ones have rotted.

No on the blooming, though it is growing 2 basal keikis. I unpotted to check the roots. No bugs having lunch that I could see, but I washed the plant off, neemed it and potted up with fresh sphag. (didn't wash the clay pot, but now I wish I had). Roots were okay, not as good as I'd liked, but not all rotten either. I bought this plant about 6 months ago, potted in peet and the roots were starting to rot, so I immediately repotted.

I just don't know what this is!

[LJA]

Hmmm. Yeah, very frustrating when they do that and there's no apparent cause. I had 2 phals that were doing something similar: one of them had roots that were going rotten, the other had nothing apparently wrong with it, but all of the leaves except for the two newest at the top eventually yellowed and dropped off. I sprayed and sprayed. It looks like it's stabilized now, but it hasn't done anything in terms of new growth yet. One of those orchid "wait and see" issues...