Removing a dead stem
Confirm the target and its connection before removing it.

What to look for
Look for a stem that is clearly dry and dead, then follow it back to where it joins the plant. A brown stem is not always dead; if you cannot distinguish living tissue, do not guess.
What to do
With a clean tool, remove only the confirmed dead section without damaging adjacent live stems or buds. Clean the tool afterwards, especially if disease may be involved, and monitor the remaining growth.