Black fly?????

[Annette]

After yesterday's potato success, today I've discovered the underside of my courgette leaves infested with tiny black flies. I don't actually know if black flies are black! I'm assuming they are but pictures I've seen on the internet all show the blighters to be green/yellow. Unless they are just aphids (which all of the black fly info. came under the heading of aphids).
I've tried spraying them with water but they seemed to be enjoying it rather than horrified - in fact, I think one of them got out a bar of soap!!!!
Do I need to seek the help of a chemical or should I wait???
Thanks, in anticipation.
Annette

[andrewo]

It's blackfly, you can be organic and just nip off those leaves and burn them or you can spray.

[Bugeyes]

Add some washing up fluid to your spray water and give them a good soaking!

[Annette]

Thanks for the advice Andrew and Bugeyes - will run those little horrors off my land!!!

[multiveg]

I remember growing on my father's allotment nasturtiums. They were next to the french beans which I recall in previous years had suffered from blackfly. Anyway, this one year, I had at least a square metre-sized patch of nasturtiums then I noticed that some of it had died - blackfly. There were no blackfly on the beans though!

Spraying, don't do it in hot sunshine! I tend to pretend that they are someone I don't like - say a politician, then take great pleasure in squishing them with finger & thumb.