Small, fruitfly-like bugs on indoor plants

Asked March 6, 2020, 3:58 PM EST

Client has been dealing with very small, delicate flies that resemble fruit flies that come from her indoor plants. She wonders if the issue came from moving the plants from outdoors to indoors or from re-potting them. The insects aren't afraid to land on any surface, including in liquids or on your face. They're slow and she is able to catch them with ease. We did some looking and found fungus gnats to be an option, but these insects are quite smaller than a mosquito--what was used to identify the size of fungus gnats. I've attached a few photos of the insects she bagged and included a small paperclip for size comparison.

Cheboygan County Michigan

1 Response

These are indeed fungus gnats. https://www.canr.msu.edu/resources/fungus-gnats
They are drawn to moist areas and survive on indoor plants. Letting the indoor plants dry out bit more between watering may help lower the number of gnats.