[Caretaker]

I was just looking at my runner beans and the slugs have left them alone so far but last year it was black fly.
Now I know I am a bit early to be thinking of black fly but that is what came in to my head.
I was going to try, now organic but don' know were to start.
Has anyone got a good spray they have used?
Reg

[gobs]

You can soap them but much easier is to keep an eye on them and remove top shoots and destroy.