Sewer flies are small, grey pest, they come from organic buildups in any area where there is standing water, breeds in the buildup in pipes and enters the bathroom through a faulty seal between the toilet and sewer flange. This might indicate they are breeding lower down in the pipe and flying upwards. sewer flies are attracted to moist places, making a leaky pipe or a clogged drain the perfect place for them. An increase in flies in kitchen and bathroom, indicates a leak or a clogged drain.
They can trigger bronchial asthma in susceptible individuals and their larvae can cause myiasis, a parasitic infestation in which the larvae grow inside human tissue.
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PAPER WASP
