Soil gnats look similar to fruit flies, and they are just as annoying. But those aren't fruit flies buzzing around your houseplants all winter long, they are soil gnats. If they swarm in the flowers, most likely they are fungus gnats (read about getting rid of Often people can't tell fruit and drain flies or other flying insects apart. Fruit flies lay their eggs on your apple trees, tomatoes, eggplants, apricots, and peaches. . Buy some roundworms which emit a bacterium that digests the internal. Simply add a bunch of fruit scraps to a large plastic water/juice/pop bottle, along Fruit flies will congregate on or near this system and you should be able to .. Lacking that product (I have fruit trees, so had some anyway).