How to Use Garlic to Get Rid of Pests: Rats, Flies, Lice, Bugs, Lizards, Mosquitoes, Cockroaches

Pests are a nuisance that no home is immune to. The buzzing of flies, the rustling of cockroaches, the bite of mosquitoes. Most people reach for chemical sprays and traps, but nature offers a simpler, safer alternative that has been used for generations.

Garlic.

Its strong, sulfurous compounds are deeply unpleasant to many pests, making it a natural repellent. It is non-toxic, safe around children, and costs almost nothing.

Why garlic repels pests

Garlic contains sulfur compounds that create a strong odor that many animals and insects find overwhelming. When placed strategically, the scent acts as a natural barrier that pests avoid.

How to use garlic for different pests

For rats and mice:

1. Crush 10 to 12 garlic cloves into a coarse paste.
2. Place the paste in areas where you have seen rat droppings or signs of activity—under sinks, behind appliances, in the attic or basement.
3. Rats strongly dislike the smell and will avoid the area.
4. Replace the garlic every few days as it dries out.

For flies:

1. Blend 8 to 10 garlic cloves with 2 cups of water.
2. Strain the liquid into a spray bottle.
3. Mist the solution around doorways, windows, and areas where flies gather.
4. Reapply every few days.

For lice (on humans or pets):

1. Crush 6 to 8 garlic cloves and mix with 2 tablespoons of coconut oil.
2. Apply the mixture to the scalp or affected area.
3. Leave it on for 30 minutes.
4. Rinse thoroughly. The sulfur compounds help discourage lice.
5. Follow with a fine-toothed comb. For serious infestations, professional treatment may be needed.

For general crawling bugs and insects:

1. Blend 10 garlic cloves with 2 cups of water.
2. Strain the liquid into a spray bottle.
3. Spray along baseboards, windowsills, doorframes, and cracks.
4. Reapply every few days.

For lizards:

1. Place crushed garlic cloves in corners, behind furniture, and near windows.
2. Lizards dislike the smell and will stay away.
3. Replace the garlic every 2 to 3 days.

For mosquitoes:

1. Blend 10 garlic cloves with 2 cups of water.
2. Strain and pour into a spray bottle.
3. Mist the solution around outdoor seating areas, on patios, and near doorways.
4. You can also rub a cut garlic clove over exposed skin (test a small patch first) as a natural repellent.

For cockroaches:

1. Mix crushed garlic with water to create a thin paste.
2. Apply the paste to dark corners, under sinks, behind the refrigerator, and along baseboards.
3. Cockroaches rely on scent to navigate; the garlic disrupts their ability to find food and water.

General tips for best results

• Use fresh garlic. The stronger the smell, the more effective the repellent.
• Replace garlic cloves or spray every 2 to 3 days as the scent fades.
• Keep garlic away from areas where your pets can eat it.

A gentle word of caution

• Garlic is safe for use around humans. However, ingestion of large amounts of garlic can be harmful to dogs and cats. Keep garlic slices and spray in areas your pets cannot access.
• Test the garlic spray on a small area before applying it to surfaces, as it may leave a residue.
• If you have a known allergy to garlic, avoid direct contact.
• For serious infestations, combine these methods with other natural approaches or seek professional help.

Why this simple method is worth trying

You do not need harsh chemicals to manage pests in your home. A head of garlic, a spray bottle, and a little patience are all you need to create a natural barrier that many pests will avoid.

It is safe, affordable, and already in your kitchen. The next time you spot a fly, a cockroach, or a mosquito, reach for a garlic clove before you reach for a toxic spray. Your home—and your family—will be better for it.

For more DIY household tips, take a look at the boiling-water soap trick and the castor oil and apple cider vinegar story. You can also read about rosemary and eye care.