I have had this bush/tree for approx. 15 years and it is about 10/11 feet tall.
Problem is main branch looks to be dying, leaves all droopy whereas an offshoot starting from near ground level is healthy.
Local garden centre cannot see any disease only a few aphids and are at a loss as to the reason.
Should I cut it back and if so is this the right time to do it

chappell 1, July 2013

Pruning - Left unpruned, elders tend to become untidy and unstable. They may be pruned to the ground in winter, losing flowers and fruit, or old wood may be cut out and young shoots reduced my a half.

Aphids and mosaic virus may occasionally strike.

Peccavi, July 2013