Give it a smell to make sure the water smells minty if not add a few more drops. Other natural repellents for spiders in addition to peppermint oil you can try peppermint tea bags or leaves.
Simply fill a spray bottle with tap water and add 10 15 drops of peppermint essential oil.
How to get rid of spiders with peppermint oil. So using peppermint essential oil spray for spiders is the most ethical cost effective and harmless method to get rid of them. While making the spider repellent with peppermint oil you may want to add a few drops of a carrier oil like cedarwood essential oil or some other light oil to dilute the effects. Fill the bottle with water add a shot of dish.
How to use peppermint oil to repel spiders to make a spider repellent spray place about five drops of peppermint oil in a 16 ounce spray bottle. Spray a mixture of peppermint oil and vinegar around your home to deter them from coming inside.