Little green flies scoffing my pumpkin and beans!!!!!!

[ChrisBro]

There are some little green coloured flies happily filling their bellies on my pumpking and beans, what can I do to get rid of these organically prefferably.

Thanks in advance

Chris

[ChrisBro]

[amphibian]

Horticultural soap/oil sprays, such as those found here

[Digeroo]

Ladybirds?