Lanarkshire,
United Kingdom 
How to rid small black flies from my greenhouse?
28 Oct, 2010
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Lanarkshire,
United Kingdom
How to rid small black flies from my greenhouse?
28 Oct, 2010
Previous question
Next question
Once everything is cleared out, you can buy a sterilising
candle (sulphur I think) from Garden Centres. You light it and leave, with all windows and door closed. You can open it next day, preferably just a window, for a short time.
28 Oct, 2010