Aside from being annoying fungus gnats are actually quite destructive. What you did was clog up the pores so to speak. 40 Natural Techniques To Getting Rid Of Fungus Gnats And Kill Adult Larvae Completely How To Get Rid Of Gnat Add five drops of liquid dish soap to the apple cider vinegar. Does dawn kill fungus gnats . Does dawn dish soap get rid of gnats. Stir in a few drops of dishwashing liquid and pour the solution into several jars. How does Dawn dish soap get rid of gnats. Always take houseplants outdoors for treatment and allow them to dry before they come back inside. They are only seen as adults since the other three stages of their life cycle are. You can make your own organic traps to kill the adult fungus gnats. The surface tension of soap bubbles is too thick for them to pop. Put it near your infested house plants. Also to know is how do you kill fungus gnat eggs in soil. Dawn Dish Soap Houseplants. I just use a sticky trap hanging on my ligh...