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How To Kill Mosquitoes In Water

As anyone knows, mosquitoes can be a real buzz kill on a beautiful summer evening in the yard. But don’t despair; there are many safe techniques and products, like dish soap, apple cider vinegar, and more, that you can use to safely kill mosquitoes in water.

This article will explore different products you can use to kill mosquitoes and mosquito larvae and methods to keep the water around your yard as unattractive to mosquitoes as possible.

What To Put In Standing Water To Prevent Mosquitoes

Mosquito Dunks

Mosquito dunks are a safe and easy method for preventing mosquitoes from breeding in standing water. 

Mosquito dunks work by releasing a biological agent (Bacillus thuringienis serotype israelensis, or Bti) into the water that targets pests while leaving the rest of the water environment unharmed. 

Mosquito dunks are slow-release and work over a 30-day time period. If you have eggs that are getting ready to hatch, you should use the Mosquito bit. This is similar to the mosquito dunk but works much faster.

Either product is very effective at eradicating mosquito populations in water.

Household Products That Kill Mosquitos in Standing Water

Dish soap, apple cider vinegar, shampoo, or oil can all kill mosquitos in stagnant or standing water.

People often ask, “does soapy water kill mosquitoes?” The answer is yes! Dish soap is safe, non-toxic, and effective. It works by changing the water surface tension so that when the mosquito lands on it, it will sink rather than stand on the surface. 

Oils, such as vegetable or olive oil, can kill larvae instantly on contact when you pour some into your standing water problem. This is not a good choice for fish ponds because it can harm your fish.

Apple cider vinegar is a natural repellent. Mosquitoes do not care for the overpowering vinegar odor. You can put apple cider vinegar in standing water, 15% vinegar, 85% water, and this will kill mosquitos. However, it is a slower method and may take over 18 hours to kill larvae.

On a side note, you can put an apple cider vinegar and water mixture in a spray bottle and spray it on yourself or animals as a natural repellant.

BuzzBGone

BuzzBGone is a mosquito trap that lures the mosquito with a light source designed to attract them then kills the mosquito by zapping it. It is safe and effective in the house and just about anywhere outside. 

Other products and product reviews can be found at MepiNetwork as well.

How To Stop Mosquitoes Breeding in Water Features

Add Mosquito Killing Animals To Ponds

If you have a pond that you are trying to prevent mosquitoes from inhabiting, you should add mosquito-eating species. Several types of fish eat mosquitoes, such as catfish, minnow, bass, or bluegill.

Tadpoles and frogs also enjoy chowing down on mosquitoes and are a great way to help cut down on the mosquito population.

Control Algae and Bacteria in Standing Water

Mosquitoes’ primary food source, besides humans, is algae and other forms of bacteria. Eliminating this type of growth by occasionally cleaning containers of standing water, a birdbath, for instance, will prevent the water from becoming a choice breeding ground for mosquitoes.

If the standing water source is a pond, consider adding animals that like to eat algae and pond plants such as Grass Carp, Pond Loach, and Shubunkin Goldfish. 

Additionally, removing dead or dying plants and staying on top of plant maintenance will significantly reduce mosquito food sources and breeding grounds.

Avoid Stagnant Water


Mosquitos’ favorite breeding ground is in stagnant water. Consider introducing a fountain or waterfall into a pond to provide a fresh and lively current into standing water. This will be a big deterrent to mosquitoes considering laying their eggs there.

How To Kill Mosquitoes in Pool Water

Chlorination

Keep your pool chlorinated at the proper levels. Chlorination prevents the spread of water-borne diseases, prevents algae growth, and keeps it an inhospitable breeding environment for all insects. A good pH level for your pool should be around 7.4.

Water Circulation

Keep your pool pump running constantly. Stagnant water is a mosquito breeding ground haven. Pumps keep the water moving, and mosquitoes don’t like that.

Pool Cover

Keep water off the top of the pool cover. After rainfall or the sprinklers running, take care to sweep the excess water off the pool cover.

Make sure the pool cover is tight to block mosquitos’ access to the pool water when it is not in use. Keeping the pool cover tight also keeps sunlight out of the water, which will inhibit algae growth.

Remove Other Sources of Standing Water

Keep other stagnant water sources away from your pool when possible. Move birdbaths away from it, for example.

If you have a smaller wading pool, be sure to change the water and scrub the sides of the pool once a week to prevent algae growth and mosquitoes from laying their eggs.

Lawn Maintenance

Cutting back overgrown hedges and excess vegetation can minimize the number of places that mosquitoes like to hide. Try not to overwater potted plants either.

Do Mosquitoes Lay Eggs In Water?

Yes, mosquitoes need water in which to lay their eggs. The females will lay up to 100 eggs at a time on any inner, wet wall of a container. The containers do not need to be very big either; a small bowl, an old tire, or a forgotten plant pot will all do nicely.

The eggs attach themselves to the sides almost as if with glue. If the container dries out, the eggs can survive for 8 months without being wet before they die.

Mosquito eggs look like black rice or dirt. If you see something like this in a dry or wet container, you should thoroughly clean it with soap, water, and bleach to be sure to eliminate all of the mosquito eggs.

Why Do Mosquitoes Lay Their Eggs in Water?

Mosquitoes lay their eggs in water, specifically stagnant water because it is a good source of algae and proteins. These algae and proteins serve as the nutrients which feed the female mosquitoes’ eggs and larvae once the eggs hatch. 

Final Thoughts


No one enjoys being eaten alive by mosquitoes. The best defense against them is to eradicate all sources of standing water around your home. If that isn’t possible, knowing what kills mosquitoes in water is your second line of defense. From mosquito dunks to a BuzzBGone, there are many safe and inexpensive ways for you to fight this battle.

And now that you know how to kill mosquitoes in water with the techniques outlined above, you can take yourself off the menu at Chez Mosquito this summer!

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