I have a group of Pachypodium lamerei by the front of my house, and the largest and oldest of them ( 12 years old, about 8-9 ft tall) has suddenly started doing this. The others are unaffected. I cannot imagine that it might be dying but I can see no reasonable explanation for this. ANY Ideas?? I can't get close enough to the crown to check for bugs but can't see anything moving in there. The last of the groups of leaves is visible here in the center and it is also looking like it is going downhill.
