Dear friends, I have recently noticed in and around the pot of a jewel orchid small dark flies around 3 mm long, which apparently live in the compost. The compost is 50% clean fine bark and 50% organic peat free garden compost (humus). Inside the compost there are some small larvae, translucent white, some 3 to 4 mm long, which seem to be related to the flies.
What are this animals? Can they affect the plants? Are they pests or just unwelcome guests, which do not affect the plants? Do they spread? If the case, do you know of any natural, organic or biodynamic treatment against them? We do not use chemicals. Thanks in advance. R & C West Yorkshire UK
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