Stagnant water on ponds is an ideal place for mosquitoes to lay their eggs.
There are a few ways you can prevent this.
The first is to agitate the water by adding an electric aeration pump or a fountain.
Mosquitoes need to breathe air through the surface of the water and are very susceptible to wave action.
As such, by increasing the aeration in the pond, you will make it impossible for mosquitoes to survive in it.
Another thing you can do is to clean your pond regularly. Mosquito larvae feed on microorganisms and floating organic matter. So, by removing thick layers of algae in your pond, you’ll eliminate their food supply.
Another thing you can consider is bio-control.
For this, you can add fish in your pond that is mosquito predators.
Some of the most popular ones are Mosquito fish, Guppies, and Threespine stickleback.
Western Mosquitofish or Gambusia specializes in consuming mosquito larvae.
These fish are tiny, enabling them to thrive in shallow waters where mosquito larvae live.
Another advantage of mosquito fish as a biocontrol is that they are tolerant of a wide range of environmental conditions, such as temperature and salinity.
Today they are used around the world as an alternative to using pesticides to control mosquitoes.
Finally, you can use BTI to control mosquitoes.
BTI is a naturally occurring bacterium found in soils.
These pathogens produce toxins that specifically target larvae mosquitoes.
BTI is excellent for places where water cannot be emptied, such as fountains and ornamental ponds.
While BTI is fatal to mosquitoes, it presents no toxicity to people, crops, bees, and animals.
BTI comes in many forms, including pellets, granules, tablets, and liquid.