Posted: 30/01/2015 at 11:43
I would remove the overhanging branches as long as you only remove the bits on your land. That will remove part of the problem.
A strong hose will remove green and white fly and they do not reattach when they get washed off the stems/leaves.
I use Provado for my Lupins as the greenfly can literally coat the stems and my wife hates them as it is.