To create your DIY fly-repelling diffuser, you’ll need one or two sets of chopsticks and a short vase with a narrow neck and mouth or a glass jar. A vase with a narrow opening is best to prevent the diffuser solution from evaporating quickly. You’ll also need some Pine-Sol, just make sure it’s the kind that has pine oil in it.
Fill your vase with Pine-Sol and toss your chopsticks in. Place your diffuser outdoors on a patio table or wherever you want to deter flies. It’s probably best that you only use this outdoors unless you love the scent of Pine-Sol and want your house to constantly smell like it. If you have a bigger area you want to deter flies from, mix one-fourth bottle of Pine-Sol with a half gallon of water and our pour solution into a spray bottle. You can spray this mixture on your patio furniture, under your deck, or in other areas where flies are a bother.