How To Kill Mosquito Larvae

Mosquitoes are everyone’s worst enemy. These pesky insects come in all shapes and sizes, with each species of mosquito having its own unique set of traits that contribute to their success. In order for a person to be able to kill the eggs and larvae before they hatch, it is important for them to understand what makes these tiny creatures tick. Here is a list of some tips for killing mosquitoes

The “what kills mosquito larvae in water” is a question that has been asked before. There are many ways to kill mosquito larvae, but the most effective way is by boiling them.

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Any homeowner with standing water in their yard who wants to enjoy a mosquito-free summer must kill mosquito larvae. The venomous insects inflict itchy bites and may transmit bloodborne infections, providing a health risk to anyone relaxing in the garden.

Mosquito eggs are laid in standing water, where they hatch and mature into larvae. There are a few options for killing them before they mature into adult Mosquitos at this point:

  • Fish eaten by Mosquitos
  • Dunk the Mosquito
  • Larvicides
  • Cinnamon essential oil or Oil made from vegetables
  • Soap for dishes
  • vinegar made from apple cider
  • Bleach


We’ll go through each of these possibilities in depth in this post so you can figure out which one is ideal for you. After you’ve taken care of the current larvae, we’ll go through a few basic preventative tactics to get the Mosquitos to spawn somewhere else.


Contents Table of Contents

  • Identify the Larvae first.
  • Methods for Getting Rid of Existing Larvae
  • Methods Suggestions for Preventing More Larvae
  • Adult Mosquitoes: Additional Recommendations

Identify the Larvae first.

The first step is to see whether there are any mosquito larvae in your yard to destroy. You should inspect your yard, particularly if the West Nile or Zika viruses are spreading. Look for any areas where there is standing water, since this is where adult mosquitoes lay their eggs. Ones that come to mind include

  • Ponds for decoration
  • Birdbaths
  • Bins for collecting rainwater

Checking for mosquito larvae is probably already part of your summer care if you have these elements in your landscaping. If not, think about it.

Keep in mind that there may be other areas of the yard with standing water that need to be dealt with. Think:

  • Behind the shed, buckets or landscaping bins
  • Puddles in low-lying locations with insufficient drainage
  • Gutters clogged

In many situations, just getting rid of the water is the best option. By removing the water, the larvae’s habitat is no longer there, and the issue is remedied. However, if water is an integral feature of your landscape, continue reading.


If the weather has been warm and the water is entirely calm, mosquito breeding is probable. It takes roughly a month for an egg to mature into an adult mosquito. The Mosquitos spend roughly two weeks in the larval stage throughout the month-long cycle. The idea is that you have fewer than two weeks to destroy larvae once you detect them before they fly away and start biting humans.

So, how do you spot them? Because the larvae wriggle about, they are simpler to discover than the eggs. Here’s how Terminix’s experts recognize them.

“A mosquito larva is a little hairy worm that is less than a quarter-inch long. It features a hard circular head, a soft body, a ten-segmented abdomen, and a siphon tube at its abdomen’s tip.”

Look for little worms wriggling around near the water’s surface. There’s not much else these tiny creatures may be mistaken for during the summer months when there’s standing water.

Okay, you’ve tracked down the scumbags, and the time is ticking on the two-week deadline… So, what’s next?

Methods for Getting Rid of Existing Larvae

There are many ways to make a cake, as the old adage says. Similarly, there are many methods for killing mosquito larvae, all of which are less enjoyable than making a cake…

Because all of the following methods are successful at killing larvae, the most important things to consider are environmental friendliness and the final use of the water. You won’t use bleach if you want to be environmentally friendly. Chemical larvicides should also be avoided if the water is to be consumed.

So, here are the advantages and disadvantages of each of the top choices. Our objective is to provide you with information on the efficacy and consequences of each so that you can determine which is best for you.

Try Using A Dunk the Mosquito


The Dunk the Mosquito is probably the most effective, and least toxic pesticide available for killing mosquito larvae.  They are safe enough to be sold directly to homeowners, and can be bought at any home store.

These items are little floating pucks that may be floatated on the surface of any body of water. They can treat up to 100 square feet of water surface and kill mosquito larvae within hours.  

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This makes them ideal for treating Ponds for decoration or anything smaller. The active chemical in Dunk the Mosquitos is called Bti.  Bacillus thuringiensis subspecies israelensis (Bti), is a type of bacteria that is found naturally in some soils.  The toxins this bacteria produce have been tested and shown to only harm the larvae of:

  • Mosquitos
  • Flies that are black in color
  • Gnats of fungus.

BTI is not harmful to any additional animals than those mentioned above, according to the CDC. This indicates it isn’t harmful to:

  • Humans
  • Animals as pets or otherwise
  • Fish
  • Other insects, such as honeybees, are also present.
  • Lawns or crops

This means that Dunk the Mosquitos are pretty safe to use in water that will be used for lawn and garden irrigation, like a rainwater collection bin.

Another benefit of the Dunk the Mosquito is that it works over a longer period of time.  After killing the initial larvae, it will work for up to 30 days to prevent more.  This product is pretty much the safest, most effective chemical option available.

If you have a pond bigger than 100 square feet, you should hire a professional to spray Bti from the air. Alternatively, scroll ahead to learn how to keep larvae at bay.

However, there are other larvicides available.

Bti is the most widely used form of bacterial larvicide. Insect growth regulators are a more conventional sort of insecticide that is more toxic but has the same effect.

These goods include compounds like:

  • S-methopryne
  • R-methoprne
  • Pyriproxyfen

The active ingredients in these products will most likely come in the form of a spray or a dip tablet, and they function to kill mosquito larvae by interrupting their life cycle. These compounds are insect hormones that prevent larvae from developing into adults.

They’re also harmful to a wider spectrum of insects, and several flea and tick treatments for dogs include them. Methopryne and pyriproxyfen are not hazardous to adult honeybees, according to the National Pesticide Information Center, but they may be dangerous to bee larvae.

They’re also not very hazardous to people, although youngsters are more vulnerable than adults. If it goes into your eyes, it will most likely irritate them. Otherwise, the Environmental Protection Agency has deemed these herbicides acceptable for use on food crops… As a result, employing them in your garden should not be a problem.

If you’re treating a pond containing fish, though, you should avoid this choice. For fish, there are a variety of less harmful choices available, several of which are discussed in this page.

Apply a thin layer of oil to the water’s surface.

Some larvicides include oil that must be sprayed on the water’s surface. You may, however, skip the middleman and go right to the source of the active component. There’s a good chance you already have some natural remedies on hand.

Oil suffocates mosquito larvae, killing them. The larvae have tiny siphons that enable them to breathe by breaking the surface of the water. They’re just powerful enough to break the water’s surface tension, but not strong enough to break through an oil covering. You may choose from a variety of home choices, including:

  • Oil made from vegetables
  • Mineral oil is a kind of oil that is used
  • Cinnamon essential oil
  • Olive oil is a kind of oil that comes from

While Oil made from vegetables and Mineral oil is a kind of oil that is used are probably more common, cinnamon bark oil is also pretty easy to get a hold of.

In most circumstances, one teaspoon of oil per gallon of water will cover the water surface enough to kill mosquito larvae. Suffocation should take between 20 and 30 minutes for mosquito larvae to perish.

As you can probably tell by looking at the list of products above, these oils do not pose much of a threat to pets or kids.  In fact, the Cinnamon essential oil has a noticeably pleasant smell that might actually attract kids!  

Keep in mind that killing larvae with oil in a pond containing fish is bad for the fish. The coating of oil prevents oxygen from being absorbed into the water, which disturbs the fish’s respiration. Oils like these, on the other hand, will have no negative impact on your backyard ecology if there are no fish… It’s all terrible news for mosquitos.

Soap for dishes Works Similarly to Oil

Soap for dishes is another effective option for killing mosquito larvae.  The way they work is pretty much two pronged:

  • Many insects and larvae are poisoned by the soap.
  • The soap’s oil covers the water’s surface, suffocating the larvae.

In only a few hours, one drop of soap per gallon of water can kill the larvae. If you’re worried about fish or other animals or pets, don’t utilize this option. Although soap is hardly the most deadly substance on the planet, there are less harmful solutions for killing the larvae, the majority of which are on this list.

Vinegar Has Enough Acidity to Kill Larvae

vinegar made from apple cider or really any other household vinegar has a high enough acidity level to be toxic to mosquito larvae.  In the right concentration, all  you need to do is add it to the water and wait.

To make a solution poisonous enough to kill the larvae, mix 2.5 cups vinegar with a gallon of water.

This is a safe alternative for dogs and children, but it will most certainly kill any fish in the pond by lowering the pH. Also, for rainwater buckets that will be used to irrigate the grass or garden, this is not the greatest solution.

Bleach is a last resort that kills almost everything.

Liquid chlorine bleach is poisonous to almost all living things on the planet. If there will be children or dogs in the vicinity of the water, this is not the best solution. Also, keep it away from plants that you wish to keep alive.

Use 2 teaspoons of bleach per 1.5 gallons of water to destroy mosquito larvae using bleach. If the larvae are older, double the bleach dosage (longer than a quarter inch).

Use at your own risk. The larvae will be killed, but everything else in the water will be killed as well. A pond with fish or a birdbath is definitely not an option.

Methods Suggestions for Preventing More Larvae

An ounce of prevention is said to be worth a pound of cure. While the techniques listed above are all quite valuable for individuals who need to destroy mosquito larvae right away, picture never being in that scenario.

Keep some of these options in mind as you’re maintaining your yard during the summer, and you likely won’t need to run to the hardware store for Dunk the Mosquitos the morning of a barbecue.

Simply drain the water.

No issue if there isn’t any standing water. Standing water isn’t intended to be in the yard in most circumstances. If there is, and it is possible to remove it, do so before mosquitoes deposit their eggs.

Your best chance is to look for areas that are likely to gather water after a rainstorm. If you keep buckets outdoors, turn them inside out. The same may be said for landscape bins. Clogs, which cause standing water, may be avoided with regular gutter cleanings.

Rainwater is constantly collected by pool covers. This isn’t a big concern since the pool will usually be uncovered for the most of the summer, but keep an eye on it during exceptionally warm periods in late spring or early autumn.

It’s a little more difficult to deal with areas of the yard with inadequate drainage. You won’t be able to do much about the puddles when it rains, but you can avoid overwatering this region during dry times.

After a recent rain, it’s a good idea to assess your land. Remove any standing water that isn’t intended to be there, and your mosquito problems will be solved.  

Mosquito-eating fish help to maintain the ecosystem’s balance.

The standing water in issue is almost often an ornamental pond. If the pond is large enough to accommodate fish, this is the most environmentally beneficial alternative.

If this seems like the right approach for you, fill the pond with one of the following fish species:

  • Goldfish
  • Minnows
  • Koi
  • Guppies

Mosquito larvae are eaten by this fish. So, if mosquitos lay eggs in your pond, the larvae are likely to go undetected since the fish have been devouring them… Nature’s approach of eradicating the issue.

You will, however, need to begin caring for the fish, and the pond must be deep enough for them to survive the winter. This is why fish has been included to the list of preventative measures. If you’ve observed mosquito larvae on the surface of your pond, you’re probably looking for a fast fix rather than a trip to the fish shop.

Remember to keep the fish’s size in mind. When it comes to mosquito larvae, smaller is better. Smaller fish are better at getting into the nooks and crevices of a pond, so they’re more likely to find mosquito larvae.

If you have a pond or plan to build one, try stocking it with these fish to prevent mosquito larvae from developing wings.

Somehow, keep the water moving.

If you can’t get rid of the standing water, aerating or moving the water around is a smart preventive step. Mosquitos do not deposit their eggs in moving rivers in the wild. They’re looking for water that is completely motionless.

Aerating a pond is extremely suggested if it is part of your landscaping. Especially if there are no fish in it.

With a solar-powered pump, this is a reasonably simple task that requires no connection to the home. For birdbaths, there are even smaller alternatives available. These pumps will circulate the water at a bare minimum, but they won’t accomplish much more. However, that is all that is required to keep mosquito larvae at bay.

If you really want to go all out, beautiful waterfalls or fountains can do the trick while also adding a pleasant look to your yard. They provide a lovely sound as well.

The purpose is to make mosquito larvae uninhabitable in the environment. The secret is to just move the water around.

Adult Mosquitoes: Additional Recommendations

Don’t worry if you didn’t capture the mosquitos while they were larvae. Adult mosquitos are more difficult to destroy, but there are a variety of techniques to keep them at bay.

  • Zappers for Bugs
  • Citronella
  • DEET
  • Smoke
  • Eucalyptus lemon
  • Lavender
  • Tea tree oil is a natural antiseptic.

All of these choices work just as well for adult mosquitos as they do for any other bug, so they’re handy in that sense. Did you know that the smoke from a fire pit might help keep mosquitos away?

Adult mosquitoes, on the other hand, are far more difficult to destroy than the more fragile larvae. Controlling them at the source, before they reach maturity and start transmitting bloodborne viruses like West Nile and Zika, is much more successful.

Mosquitoes aren’t the only pesky insects you’ll encounter outdoors. Learn how to safely and permanently eradicate weeds, as well as how to remove unsightly tree stumps.


“Can dettol kill mosquito larvae?” Dettol is a popular brand of insecticide that can be bought at any local store. The product is used to kill mosquitoes and other insects in the home. Reference: can dettol kill mosquito larvae.

Frequently Asked Questions

Does soapy water kill mosquito larvae?

A: Yes, soapy water kills mosquito larvae.

Does white vinegar kill mosquito larvae?

A: White vinegar is a great, natural alternative to store bought pesticides and it has been found that white vinegars can kill mosquito larvae.

Does pouring out water kill mosquito larvae?

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  • will bleach kill mosquito larvae
  • can salt kill mosquito larvae
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