What is the best repellent for cockroaches?

Author: Dr. Krystal Kris  |  Last update: Saturday, May 23, 2026

Citronella Oil Its strong scent is known to deter roaches and other insects like mosquitoes and gnats. Homeowners can either directly apply the oil to areas frequented by roaches for the most effective application or dilute it with water to create a DIY repellent spray.

What do cockroaches hate the most?

Citrus is one of the scents cockroaches are most known to hate, notably lemon and orange. Keeping a dish of lemon juice on your kitchen counter can deter these pests, as well as placing lemon peels around the home to discourage cockroaches from coming out of hiding.

What scent will keep roaches away?

What smells are cockroaches afraid of? Cockroaches are repelled by the smells of peppermint, eucalyptus, lavender, citronella, and cedarwood oils. These scents can be used as natural deterrents to keep them away from your home.

What is the best homemade roach repellent?

One effective method is using equal parts vinegar and water to clean your countertops and floors. Roaches dislike the strong scent of vinegar so that it can act as a repellent. Another option is to sprinkle diatomaceous earth along the areas where you've seen roaches.

What is the best thing to keep roaches away?

Cayenne, Garlic, and Onion Powder. Try heading over to your spice rack to concoct the perfect mixture to ward off the roaches! Walk around your home and sprinkle all cockroach-prone areas with this spice mixture. Cockroaches can't stand the smell of these spices and will avoid all areas sprinkled with them.

Keep Roaches Away With Best Cockroach Repellent

How do I get rid of roaches permanently?

Get Them Out!
  1. Remove clutter.
  2. Vacuum well and often. ...
  3. Wash hard washable surfaces with cleanser (ammonia and water works well).
  4. Dust out of sight spaces with boric acid powder. ...
  5. Use roach baits near hiding places like behind pictures and wall hangings, under sinks and undersides of furniture.

Will leaving lights on keep roaches away?

Leaving the light on doesn't deter cockroaches effectively because they can navigate in low-light conditions. While they're mostly active at night, they may still come out in search of food or water. During the day, cockroaches hide in dark areas not directly exposed to light.

What can I spray to keep roaches away?

What Smells Repel Cockroaches?
  • Tea Tree Oil. Tea tree oil is frequently cited as an effective natural repellent against cockroaches. ...
  • Eucalyptus Oil. ...
  • Lavender Oil. ...
  • Cypress or Peppermint Oil. ...
  • Citronella Oil. ...
  • Rosemary Oil. ...
  • Oregano Oil.

What is the fastest natural roach killer?

3 Natural Ways to Kill and Repel Roaches
  1. White Vinegar Deters Cockroaches. Seeing cockroaches in your home is a huge threat. ...
  2. Ethanol Directly Kills Cockroaches. While white vinegar won't kill those pesky insects, ethanol—also known as common alcohol—will kill cockroaches. ...
  3. Baking Soda Instantly Exterminates Roaches.

What candle smell do roaches hate?

Roaches hate Yankee Candle.

Well, roaches hate those scents, along with mothballs and citronella.

What is a cockroaches' biggest weakness?

Cockroaches are blessed with an amazing sense of smell. This is what they use when seeking food and mate but at the same time, this is also their weakness. A cockroach's sense of smell can be used to get rid of them.

How often should you spray peppermint oil for roaches?

DIY spray: Spray the solution in areas prone to cockroach infestation, such as kitchen cabinets, under sinks and around appliances. Apply every few days for the best results.

Do roaches hate Pine-Sol?

Pine Sol can kill roaches on contact, though it's not a practical solution for a wide-scale infestation.

What is a cockroaches worst enemy?

Insects and Arachnids

Strangely enough, one of the most prevalent kind of predator that cockroaches face are fellow insects! The emerald cockroach wasp, Ampulex compressa, for example, has an unusual way of preying upon cockroaches. The wasp stings the cockroach's brain, which paralyzes the cockroach.

How to make roaches go away overnight?

Baking soda is a fast and effective way to kill roaches. When a roach ingests baking soda, the baking soda expands inside them, causing the roach to explode. Simply sprinkle baking soda on food, such as an onion, and leave it near where you've seen roaches overnight.

What is the number one thing roaches are attracted to?

Attractor #1: Food

What attracts cockroaches more than anything is food. Roaches need food to survive. Eliminating access to food can help eliminate a roach problem. Throw away any food that has been left out on the counter.

What is the number one thing to get rid of roaches?

Boric acid: Used correctly, boric acid is one of the most effective roach killers. It's odorless, has low toxicity to pets, and since it isn't repellent to roaches, they will not seek to avoid it, crawling through it repeatedly until it kills them.

What is the main cause of roaches?

What causes roaches in houses and apartments? What attracts roaches to a clean house primarily consists of their basic needs: food, water, and shelter, although they are usually brought into houses and apartments on other items, such as luggage or clothing.

What is poisonous to cockroaches?

Boric acid is a stomach poison that is picked up by cockroaches walking across dusted areas. The boric acid adheres to the cockroach cuticle so when the cockroach grooms itself it ingests the boric acid and soon dies.

What does baking soda do to roaches?

Baking soda is believed to kill roaches by causing gas buildup in their stomachs, which damages their digestive system. It usually takes 24 to 48 hours after consumption for cockroaches to die from baking soda. Mixing baking soda with other household items may make it more effective against roaches.

What is the best natural roach repellent?

Here's a closer look at some popular options:
  • Peppermint and Tea Tree Oil: These strong-smelling oils are believed to repel roaches. ...
  • Baking Soda and Sugar: This simple mixture doubles as bait. ...
  • Bay Leaves: Crushing bay leaves and placing them in cabinets or near food storage areas can act as a deterrent.

What is the most effective pest control for cockroaches?

Most familiar to householders are boric acid and diatomaceous earth. For controlling cockroaches, boric acid tends to be more effective. Roaches succumb to boric acid after crawling over treated surfaces.

Where do roaches hide during the day?

Most cockroaches hide in dark, secluded areas by day. They can be found behind furniture and appliances, as well as under refrigerators and stoves and in cupboards or cabinets. They are capable of flattening themselves in order to fit into crevices between floorboards and walls.

What are roaches afraid of?

Peppermint oil, cedarwood oil, and cypress oil are essential oils that effectively keep cockroaches at bay. Additionally, these insects hate the smell of crushed bay leaves and steer clear of coffee grounds. If you want to try a natural way to kill them, combine powdered sugar and boric acid.

Do roaches climb on beds?

Seeing a cockroach crawl across a bed isn't unusual if the insects are already making a home in your bedroom or a nearby bathroom.

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