On 23/09/18 07:32, Chris Hogg wrote:

Or were you thinking of the modern neonicotinoids. But these have now
been withdrawn EU-wide because of their claimed effect on bees.

Acetamiprid is still available, as noted in the RHS paper from the link
in your paragraph below.

A list of insecticides available to the UK amateur and advice on their
use is available on the RHS web site. Personally, I'd go for a
systemic insecticide, as that gets into the sap and spreads through
the whole plant, so that any bugs not reached by a contact insecticide
get killed when the suck the sap. https://tinyurl.com/y9g3oafu and
see Section 4.

--

Jeff