Ants hate strong odors such as peppermint, citrus, cinnamon, and essential oils such as lavender and eucalyptus. You can sprinkle cinnamon in the area or combine essential oils with water to form a spray that repels ants in the event of an infestation—just make sure nothing you apply will harm your surfaces, kids, or pets.

Spiders are most active during the warm spring and summer months. During this time, most spiders emerge from their hiding places to lay eggs and hunt for food. However, each species of spider is different and some are more active than others. Stay vigilant for signs of spiders in your home once the weather begins to warm.

One of the most widespread chemicals used for killing termites is Fipronil. It’s one of the most common insecticides used by termite exterminators to kill termites fast. However, it’s toxic and generally used in outdoor areas only. Popular brand names of termite killers include Taurus, Bifen, Termidor, and BioAdvanced. All insecticides have pros and cons: Some are safer around humans but don’t last as long. Some may kill nearby plants or have power odors. Some are designed for safe indoor bait stations but take much longer to work.

To keep animals out, you must prevent them from entering. As long as they can get in, the problem will persist. That said, consider making your attic less inviting using deterrents like motion-activated lights or ultrasonic devices. Additionally, keeping a well-maintained, clean, and uncluttered attic that you regularly inspect for activity may make the space less attractive to critters.