Killing Mosquito Larvae in Standing Water?

Mosquito Larvae
in Standing Water
Eliminating standing water is the best way to keep mosquitoes from laying eggs and prevent larvae from hatching. If it is impossible or too late for that there are a number of ways to destroy the larvae before they become fully developed mosquitoes. This is a page about killing mosquito larvae in standing water.


Here are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community.

May 30, 2010

Can I pour bleach into standing water (not drinking water) to kill the mosquito larvae that are "already" there? I just want to prevent them turning into adults.

Hardiness Zone: 7a

By marsha from Grafton, VA


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May 30, 20100 found this helpful
Best Answer

You can buy tablets that kill mosquito larvae at a garden center. Just give them a call.

June 2, 20100 found this helpful
Best Answer

Purchase a couple or few "feeder fish" (e.g. comets or gold fish) at the local pet store, about a quarter a piece usually they love mosquito larvae. Depending on conditions (e.g. the water stays), they can live for years.


If they die, you're out a quarter. Since they eat all of the larvae in a day or so, you'll probably need to drop a few flakes of feed in for them when the larvae are gone.

June 2, 20101 found this helpful
Best Answer

When I was in high school, we raised mosquitos and had to draw each stage of development. If you put a thin coating of cooking oil on the surface of the water, it blocks their breathing tubes and they die. Non-toxic and you only need a little oil swished over the surface.

June 2, 20100 found this helpful

What are you going to use the water for? I had this problem with rainwater I was collecting for the flower beds. I just sprayed Raid into the water. It never hurt my flowers.


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June 2, 20100 found this helpful
This is an eco safe link to mosquito control. It has step by step instructions. In a nutshell:


Drop mosquito dunks containing Bacillus thuringiensis into the breeding area. These dunks will last up to 30 days and are safe for animals and children. They can even be used in watering troughs and water bowls. It may take up to 2 weeks before you see results, as these dunks target the larvae and prevent the larvae from hatching, interrupting the breeding cycle.

May 5, 20230 found this helpful

Too expensive and most places say 'No longer available'. Looking for an economical helpful alternative!

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