Essential oils are excellent non-toxic insecticides. All you have to do is add 2-3 drops of essential oil to pillows, mattresses or directly to the emptied electric mosquito repellent. You can also spread the oil on your skin after mixing the oil with the carrier oil. This way you will avoid unpleasant insect bites.
Lemongrass works best against flying insects, tea-tree oil has the best effect on ants and fleas, while crawling pests are repelled by thyme, moths are repelled by camphor, and mosquitoes by lemongrass oil. Even delicate plants (both indoor and outdoor ones) can be protected from insects by spraying the above-mentioned essential oils close the roots of the plant.