DanDan's picture

small flies in my compost

Does anyone know why i keep getting small flies in my pot plants, i believe that they come out of the compost. What kind of fly are they and do they help or hinder the plant?

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Alan Thornhill's picture

sciarids?

Sciarids (fungus gnats) are commonly assciated with pot plants and can, if numerous, be a pest. The larvae live in the compost, particularly if it is has a high organic matter content, but (I think) may attack softer parts of the plant's root system. Worth checking out anyway.