[northfifeduckling]

When I was spring cleaning the duck house today I found next to tons of concrete in the cracks  quite a few tiny flies, size like midges. Are they something to worry about? Thank goodness no mites or similar (although I do see red mites in the veg plot sometimes). 

[Daisys Mum]

I often find these too in the duck house I usually just spray them a fly spray or mite spray whatever I have to hand.