Larvae of the dark winged fungus gnat
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The newly hatched maggots of the dark winged fungus gnat tend to aggregate together to form a snake-like appearance. Neither the adults (small flies) nor the larvae cause damage to turf, but their presence is an indication that conditions are wet, high in organic matter, or thatchy. Photo courtesy of Matt Goddard, Virginia Tech. Bentgrass green.
Turf Insects