Plant Identification: CLOSED: Please help identify small tree in my garden!, 1 by lukelee82

lukelee82 wrote:
I have a small tree (about 4 metres high) in my back garden. It\'s an ever green tree that has small white flowers that come out in autumn and stay out for winter.

The leaves are small and waxy.

I have noticed a section of the leaves have started to turn brown (as seen in the picture), so I am trying to find out what tree it is to try and provide help to it if needed.

I had closer look today and the underside of every leave is absolutely covered with what looks like tiny black insects or dots. Any ideas what these are and if they might be causing the tree to die off?? What can I do?

Thanks in advance.