Hubster was strimming the grass between our lottie and next doors, and suddenly had to stop near my plum tree when he discovered a bee swarm attatched to the tree, any ideas how to deal with it
If its a full swarm a local beekeeper will be pleased to help, it will populate a hive for him, the local police have details of local keepers
Contact the British Bee Keepers Association - http://www.bbka.org.uk/ - who can put you in touch with a local bee keeper who'll advise you and can deal with it.
A swarm which wouldn't cooperate!
http://thisandthat-robert.blogspot.co.uk/2014/06/a-swarm-arrives-and-leaves-again.html