Bertie Doe wrote:

"Bob Hobden" wrote in message

Just been reading about yet another couple of foreign pest that are
thriving in the UK.

The Southern Green Shield Bug (Nezara viridula) is spreading in Britain
after being found breeding in the London area in 2003.

Is this the insect that leaves a 'cuckoo spit' on lavender plants?

Why do you say that? Surely cookoo spit has been in the UK since time
immemorial, but certainly way before 2003. The RHS says it's caused by
froghoppers ("Philaenus spumarius") and does little harm:

http://www.rhs.org.uk/advice/profiles0601/cuckoo_spit.asp

Peter