The message m
from VX contains these words:

I found that to get at the aphids I have to grab
each newish green shoot or flower bud and spray down into the gaps
around it
between shoot and leaves etc in order to actually get the water onto the
aphids at all. Most of them seem to be hiding away in this manner. Then I
have to turn the shoot or leaf over and spray on the underside. After a few
bushes I was unable to continue- it was (for me) back-breaking

Are you using one of those small handsprayers? No wonder it's such
hard work! Those are really for houseplants. For spraying gardens,
people usually use a larger one which has a long "wand" applicator and
works at much higher pressure. Getting under leaves, into the middle of
bushes etc is just a matter of turning the wand (while standing upright
with the spray container sitting on the ground; no bending and no
weight) But as Kay says, rugosa seldom sufferes from any pests so you
may not need to do anything. Hang a peanut feeder on a stake close to
infested plants and bluetits will soon make short work of the aphids.

Janet