Fungus Gnats

It's been really rainy over the last couple of days. We've been up to pick food but haven't done much else. Had a courgette, spring onions and chard yesterday. Today pulled a load of Rockets from just one plant (forgot to weigh them) and some lettuce and radishes.
Peas and broad beans are desperate to be picked, but we've got a cabbage from Malcolm today, so they'll have to wait till later in the week...

We took up a lot of compost today - all the broad bean pods, etc and some cardboard boxes (which is mainly what we use as brown for our compost and it works well).
There were masses of little black flies all over the wooden compost bin - fungus gnats apparently, don't seem to do any harm.