Turning Yellow and Withering????

[Reckoner]

A few days ago one of the buds turned yellow and withered and I don't know what's going on with it! What should I do and why is this happening???

http://i6.photobucket.com/albums/y22...an/S550159.jpg

[camille1585]

I remember you posting about this phal last week, a shame that one of the buds blasted.
Have you moved the plant at all? Is it sitting in a draft or have you opened the window recently? Is it exposed to large temperature swings? I don't know where you live, but near a window in a cold climate in the winter the temperature is usually much lower, especially at night.

[King_of_orchid_growing:)]

It looks like it's growing in potting soil.

If it is, do know that there are currently no Phals that have been discovered that are known to be true terrestrial plants, especially the one you have (which is a man-made hybrid), most of them grow on trees (which is known as an epipytical plant). I can't think of one man-made hybrid that has been or is currently mass produced commercially, species or hybrid, that is truly terrestrial. About the closest thing that Phals are to being terrestrial plants are the ones that grow on rocks (lithophytes), which is not the one you have - but they do exist.

This is an example of a Phal that grows on trees (epiphyte):

Video: Phalaenopsis in situ | Flickr - Photo Sharing!

This is an example of a Phal that grows on rocks (lithophyte):

Sarawak Lens: Phalaenopsis maculata in situ

[King_of_orchid_growing:)]

Originally Posted by camille1585

I remember you posting about this phal last week, a shame that one of the buds blasted.
Have you moved the plant at all? Is it sitting in a draft or have you opened the window recently? Is it exposed to large temperature swings? I don't know where you live, but near a window in a cold climate in the winter the temperature is usually much lower, especially at night.

These are valid questions to consider as well.

Keep in mind where they originate from - tropical Asia.

Tropical Asian countries (especially their jungles) are fairly humid. The low to midland jungles are intermediate to warm in temperature (anywhere around 60 F to 95 F).