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Rosemary: Fleas, Ticks
Not only does Rosemary repel ticks and fleas, but it will also repel flies and mosquitoes! It can also be used on your pets as a parasite repellent.
Peppermint: Spiders, Mosquitoes, Ants
The smell will keep spiders and other insects far away. You can also mix the oil with water place it in a spray bottle and spray the solution around your home.
Catnip: Mosquitoes
This perennial herb is related to mint, and grows readily both as a weed and a commercially cultivated plant in most areas of the US. While catnip will repel mosquitoes in close proximity to the plant, some people apply crushed catnip leaves or catnip oil for more robust protection.
Marigold: Mosquitoes, Aphids
Marigolds are hardy annual plants that have a distinctive smell that mosquitoes find particularly offensive. Marigolds contain Pyrethrum, a compound used in many insect repellents.
Basil: Mosquitoes, House Flies
Plant basil around your house, Garden, or picnic areas, and flies as well as mosquitoes will stay away.
Lavender: Moths, Fleas, Flies, Mosquitoes
Even though lavender is a smell often enjoyed by humans, lavender repels mosquitoes because mosquitoes dislike the scent lavender gives off.
BONUS
Eucalyptus Oil is a natural remedy for repelling snakes and mosquitoes.