Diy Chicken Coop Fly Spray. Add 10 drops of peppermint essential oil. Simply add a 1/2 cup of white vinegarto the glass spray bottle.
DIY Fly Repellent for Coops Fly repellant from www.pinterest.comAdd 15 drops of rosemary essential oil. Add 10 drops oftea tree essential oil. Add 10 drops of peppermint essential oil.