Still, people disagree about whether the dryer sheet hack actually works. Specifically, linalool and beta-citronellol in the fabric softener dryer sheets aid in deterring gnats and other insects from laying eggs on your plants. · certain chemicals in the dryer sheets have gnat-repelling properties. This article will guide you on how to use dryer sheets to repel gnats and the effectiveness of this method. So i decided to test it out. Cut a dryer sheet into strips and tape them to the sides of plant pots that contain soil rich in organic matter. · in conclusion, while dryer sheets may have some limited benefits in reducing static cling and freshening laundry, there is no conclusive evidence to support the claim that they repel gnats. · a study by researchers at kansas state university and the university of illinois found that bounce dryer sheets kept fungus gnats (which harm plants) away. · research shows it can effectively repel adult fungus gnats , with studies from kansas state university and the university of illinois confirming that bounce dryer sheets deter these pests in laboratory settings. · dryer sheets, specifically bounce dryer sheets, have been found to repel gnats , particularly fungus gnats, in some studies. This may discourage gnats from laying their eggs in the dirt and producing more of the pests.