[teflon]

I left the netting off my runner beans last night,for the first time since planting &today they were covered in masses of tiny black flies. I gave them a good soaking of water&washing up liquid& a couple of hours later they seemed to be dead or dying.
  This leaves me with a few questions.What were they?Have they harmed the plants?Was the netting stopping these until now?What should i do to prevent this happening again?
  A lot of questions i know,but it was a bit worrying to see them like this.
  Cheers
 Tel.

[mumofstig]

Mine get them every year and i just blast them with the hose pipe...seems to get rid of most of them.. if not i resort to Bugclear

[DD.]

The black flies are errrr - blackfly. Very common in beans.

Netting would need to be very fine to stop them.

[philsmith1967]

Do you mean runner beans or broad beans?

[lucywil]

i noticed them today on my globe artichoke, but i'm growing it for decoration so not too worried, although it is quite close to my broad beans

[jolly]

being new, i was told on my allotment when the blackfly come, to use washing up liquid n water , and to spray em  just before night time for best results

not got any yet but my armoury is now full as a few have suggested the fairy approuch

can't wait to do battle lol 

[MOLUSC]

Fill up a spray bottle with your bathwater (after the bath) and give em a blast .....this will get rid of them.
Because of the soap