Posted: 26/06/2014 at 10:17
I regularly start off plants on my kitchen window sill, in pots of compost. Every time within 2 weeks I have small dark fly that sit on the soil and fly up when I move the pots. My seedlings etc always do well and don't seem to be affected but why do I get these? Everyone else I know doesn't know what I'm talking about! Even in the winter I can't grow an amaryllis without getting them!