New growth too tall

Hi,

I had this Den (Frosty Dawn 'New York' ) in April, the new growth gets very tall now, almost twice as high as the old ones, and it is not as stocky as the old ones also. Did I give this guy too much light? Look at the yellow leaves on the new growth, are they from sun burn or fertilizer burn? The canes are shriveled more and more, I can't judge on how I should water this guy.

Thanks

Qing

Plant was like when arrived


What it looks like now

Hi Qing

That new growth looks fine to me .As for being thinner I suspect that it may be a lack of light,I would be moving the plant closer to the window.The browning of the leaf tips can be caused by so many things.
The main ones are too much water,not enough water,humidity to high for the air flow around the plant

__________________
Growing orchids is not an addiction
but a disease,that,can not be cured


murray

Thanks, Murray. I have this plant against a south window, still not enough I guess. I also have 4 40w fluorescent lights above it 16 hours a dday. I think the brown leaves might be from water residue since I like to water it in the evening (don't have time in the morning). I got to change the habit, I just caught one stem rot today, it has not spread yet or I would have a dead phal already. I treated it with cinimon, and put it next to a fan to drive out the roting water. I will spray it with physan tomorrow.

Qing