[welsh boyo]

Hi
I have noticed that my cucumbers in the GH have lots of very tiny bugs on the underside of the leaves and around the flowers on the fruit.
 also the leaves that they are on are starting to go yellow.
they are a grey/black colour.
anybody know what they are and how to get rid please.

[Trillium]

Definitely not whitefly then. A pic would help if possible. otherwise, spray with something asap before the infestation gets worse. Ask at your local garden centre and take one of the varmits with you. They'll be everywhere, even on benches so spray well and wear a mask and goggles. Sorry I can't be more specific.

[Little Miss Muffet]

i would be intrested in thi aswell as mine has some sort of fly they are like little knats.