Fungus Gnats

Thanks everyone

I have some sticky tape set up which has so far caught none!! I'm a little anxious about using it and the spray because there are a few little zebra spiders hopping around amongst the pots.

I've used diatomaceous earth on other pests before, so may look at that, plus putting grit on top - I wonder if builder's sand would work as I have that to hand and grit is expensive?

I think predatory insects and nematodes are probably not worth the expense as this SHOULD be a short term problem with all the plants going in the ground outdoors in May, if not earlier.

I have to prick out some seedling aubergines today so I may sacrifice any spare for the good of science and see how they cope with the insecticide spray and a thin layer of sand.

The seedlings are all in our open plan living space so perhaps the most annoying thing is finding a gnat in your coffee or worse in your wine glass.