No menu items!

COSTA RICA'S LEADING ENGLISH LANGUAGE NEWSPAPER

HomeTopicsArts and Culture3 Ways to Beat the Bugs in Costa Rica

3 Ways to Beat the Bugs in Costa Rica

In Costa Rica, bugs are simply a fact of life. You have to either learn to live with them, or move to a less tropical country.  Fortunately, there are several easy steps you can take to minimize insects in the house. Here are three effective homemade remedies to combat mosquitoes, ants and houseplant pests.

1. Non-Toxically Repelling the Mosquitos

I know it’s a bit late in the rainy season for this one, but test this bug spray out – you won’t regret it. Apply it often, and it really works. Best of all, it’s non-toxic and actually smells good (I’ve heard people describe it as pumpkin pie and cinnamon).

And if you accidentally eat some of it or lick your fingers after a meal, it doesn’t taste like a mouthful of fire ants.

Ingredients:

  • 500 ml alcohol (rubbing alcohol or vodka)
  • 100 g of cloves (to cut costs, try to find the big bags of 30g each – not the 10g packets)
  • 100 ml oil (something you would want on your skin, like, coconut oil or unscented baby oil)

STEP ONE: Soak all of the cloves in the alcohol for four days (this will extract the natural oils from the cloves).

STEP TWO: (optional) Stir each day. This is not a necessary step, but enthusiasts claim it makes the mixture stronger.

STEP THREE: After four days, strain. Keep the liquid and toss the cloves.

STEP FOUR: Add oil of your choice and mix.

Apply liberally and often to the skin.

Disclaimer: I had total success with this formula from July to mid-September, but I’m finding it slightly less effective as October and November creep by. Not only does clove oil seems to lose efficacy as it ages, but the mosquitoes also appear to be getting more vicious as the year draws to a close.

If the formula is not strong enough to discourage the bugs in your area, add some essential oil extracts (like cinnamon, citronella, rosemary or lavender) to boost repelling power. Any pharmacy that offers natural homeopathic remedies usually stocks these items.

I also should warn you that people tend to either love or hate the smell of this homemade bug spray. You’ll walk into a room and hear either, “Oh, what is that lovely scent! Smells like homestyle applesauce.” Or, “Gross! It smells like Christmas ham.”

2 Poisoning the Ants

Bugs commandeering the kitchen can be a stubborn household nuisance no matter where you live. Luckily, there’s an easy and relatively non-toxic solution to tackle many types of ant.

This minimalist recipe only requires three ingredients:

  • 1.5 tablespoons borax (also called sodium borate, sodium tetraborate or bisodium tetraborate and costs about $1 at any pharmacy)
  • 1 cup of table sugar (dirt cheap)
  • ½ cup water

Borax is a great insecticide for pet owners; if your dog eats some, it probably won’t die. According to a certified veterinary technician, “Borax is generally non-toxic in small amounts.” (If Skippy does accidentally ingest some, you might want to call the vet anyway –  just to be safe.)

STEP ONE: Mix the 1.5 tablespoons of borax (no more!), sugar and water together and boil for two to three minutes. Let cool.

STEP TWO: Pour a small amount into a shallow plate or tupperware lid, and place in the area of the kitchen most frequented by ants. If the ants don’t seem to be going crazy for the sugar, trying mixing in a different type of bait – like meat or gravy.

SPECIAL INSTRUCTIONS FOR PET OWNERS: Poke medium and large holes on the top of a jar, and place the sugar/borax mixture inside (you can also use an old soda can). Turn the jar on its side, to entice the ants to enter.

That’s it. The ants will unknowingly take some of the borax with the sugar back to the hill, and their whole community will become poisoned in a day or two. You’re welcome.

3. Banishing the Plant Pests

Chile peppers and garlic are natural bug repellents. If your indoor or outdoor plants are being attacked by small insects like aphids or animals like squirrels and raccoons, spray the leaves with a this potion after the next rain.

Pests will think twice about coming back. Don’t forget to wash the leaves with water before eating them yourself, or they might taste foul.

What you’ll need:

  • 4 cups of warm water
  • +/- 1 cup chile peppers, chopped
  • +/- 5 cloves of garlic, crushed and chopped
  • +/- 2 tablespoons of liquid dish soap (this acts as a binding agent so the mixture can adhere to the leaves)

STEP ONE: Add the soap and water together in a spray bottle and shake.

STEP TWO: Pour the soapy water into a large container or ziplock bag with the garlic and chile peppers.

STEP THREE: Leave the mixture to steep for 12-24 hours.

STEP FOUR: Strain, and pour back into the spray bottle.

Done! Mist your plants after each time it rains – always in the morning or after evening, or else the leaves will roast under the hot sun. This concoction will ward off all but the most stubborn creatures.

Trending Now

Costa Rica’s Route 27 Goes One-Way Sundays in January

Drivers heading back from the Pacific coast can expect changes on Route 27 starting this weekend. The Ministry of Public Works and Transport (MOPT)...

Gal Gadot Chooses Costa Rica Again for New Year’s Getaway

Actress Gal Gadot welcomed 2026 amid Costa Rica's beaches and sunsets, making it her second year in a row to end December in the...

My Twice Yearly Parasite Routine in Costa Rica

Intestinal parasites are my companion in Costa Rica. Every six months or so I make a trip to the pharmacy and ask for pastillas...

Anonymous Bettor Profits Big on Maduro’s Capture Through Crypto Platform

An unidentified trader on the cryptocurrency prediction market Polymarket turned a $32,537 wager into more than $436,000 in profit by betting on the removal...

Political Campaigns Ramp Up in Costa Rica as Holiday Ban Ends

With the new year underway, Costa Rica's political scene shifts back into high gear. The mandatory holiday truce on campaigning, enforced from December 16...

Panama’s Noriega Sets Precedent for U.S. Capture of Maduro in Venezuela

The recent U.S. military operation that led to the capture of Venezuelan President Nicolás Maduro echoes a chapter from Latin American history: the 1989...
Costa Rica Coffee Maker Chorreador
Costa Rica Coffee Maker Chorreador
Costa Rica Travel Insurance
Costa Rica Travel

Latest News from Costa Rica