Whilst pottering in the garden the other evening I was interested to see some beautiful silvery looking bugs on my lavender cuttings. I found this link from the RHS. http://www.rhs.org.uk/research/projects/rosemary_beetle.asp
It would seem I have to murder them. I will now be going through all my lavender and rosemary plants looking for beetles and eggs. They would seem to have come from cuttings I bought as my own are looking very healthy.
Shame they are destructive, they are very pretty. Not that I hope to see them on my rosemary bushes though... :-\
I have gone through all my cuttings and have had to throw more than half of them away. I don't put all this down to beetle. It was quite obvious that some of them had never grown a new root since being potted on from the supplier. Given my total experience of buying by post I will never do it again.