"David Lewis" wrote

I have a Pittosporum tree that is covered in large clusters of black
'pin-head' sized bugs on the trunk. There are scars all over the trunk
indicating that they are eating the bark. The tree has just started
leaking a substance as well which tells me that it is not well.

Any advice would be helpful as I cant find anything on the Internet
about possible treatments/explanations.

I've tried to upload photos but dont seem to be able to. Am happy to
email them direct if you would like to look.

I live in the UK.

David, this is a non-binary newsgroup (look it up) so any attachments get
stripped out. As you post here via the web site Gardenbanter look up how you
post photos to their web site with a link posted on here or use one of the
free photo places like www.flickr.com and post a link here.

--
Regards
Bob Hobden
just W. of London