Shore fly
organic matter on planting substrate. Growers consider shore flies to be mostly a nuisance pest, but the insects can act as vectors for disease organisms [...] Scatella are a common greenhouse pest found throughout the United States, Canada and northern Mexico. In Europe and Asia, the species Scatella stagnalis [...] and other unicellular organisms, they do not cause any direct damage to plant production. However, they are considered a nuisance pest because the flies