In article , John Edgar
writes
My roses are still growing hard here in Sussex, and because of the
dryness and heat we now have the dreaded aphids making a return visit.
I don't want to use Rose Clear etc, and have heard that they do not
like soapy water. Is this true, and if so what sort of soap and what
strength of mixture is best? Will dilute washing up liquid do the
trick for instance?

In the past I have just chucked my old washing up water over them and it
seems to have done the job.
--
Jane Ransom in Lancaster.
I won't respond to private emails that are on topic for urg
but if you need to email me for any other reason, put ransoms
at jandg dot demon dot co dot uk where you see