Leave them there until the day comes that they are dry and truly
dead. Until then, they store food and water to help support the
newer growth. Also, most of the flowers may come from those old
stalks. I'm sure you are hoping for flowers. ;-)

Steve


Hooter wrote:

I have a small dendrobium nobile that I have repotted. I trimmed some of
the old roots and two new stalks are growing nicely. The three original
stalks have lost their leaves and seem to be dead or dormant. Should I trim
the old stalks and, if so, how close to the base. Thanks for any help