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How to Get Rid of Mosquito Larvae in Fern Plant Water

Updated: June 12, 2022

Ferns are a popular indoor and outdoor plant that adds a lush, tropical feel to any space. However, they can also be a breeding ground for mosquitoes if not properly maintained. Mosquito larvae can thrive in the stagnant water that collects in the tray or pot of a fern plant, creating an annoying and potentially harmful problem. In this article, we will discuss ways to prevent and get rid of mosquito larvae in fern plant water.

Prevention is Key

Preventing mosquito larvae from developing in your fern plant water is the best solution. Here are some simple steps you can take:

  • Choose the right pot: Use a pot with drainage holes to allow excess water to drain out, preventing it from becoming stagnant.
  • Water wisely: Water your ferns only when necessary and avoid overwatering. Make sure the soil has completely absorbed the water before you add more.
  • Keep it clean: Regularly clean the tray or saucer under your ferns to remove any standing water.
  • Add sand: Adding a layer of sand on top of the soil can help prevent mosquito eggs from hatching.

Get Rid of Existing Mosquito Larvae

If you already have mosquito larvae in your fern plant water, don’t despair. Here are some effective ways to get rid of them:

1. Change The Water Regularly

The simplest and most effective way to get rid of mosquito larvae is by changing the water in your fern plant tray or saucer regularly. This prevents stagnant water from building up and kills any existing larvae.

2. Add Bti

Bti (Bacillus thuringiensis israelensis) is a natural bacteria that targets mosquito larvae and kills them without harming other beneficial insects or animals. You can find Bti products at most hardware or garden stores. Simply add the recommended amount to your fern plant water, and the Bti will do the rest.

3. Use Mosquito Dunks

Mosquito dunks are another effective way to get rid of mosquito larvae in fern plant water. They contain a bacteria that kills mosquito larvae but is safe for other animals and insects. Simply add a dunk to your fern plant water, and it will release the bacteria over time.

4. Use Oils

Certain oils, such as neem oil or tea tree oil, can be effective at killing mosquito larvae. Add a few drops of the oil to your fern plant water and agitate the water to distribute it evenly.


What are mosquito larvae?

Mosquito larvae are the immature form of mosquitoes. They live in stagnant water and feed on microorganisms until they develop into adult mosquitoes.

Are mosquito larvae harmful?

Mosquito larvae are not harmful themselves, but they can develop into adult mosquitoes that can carry diseases like West Nile virus or malaria.

Can I use bleach to get rid of mosquito larvae?

While bleach can kill mosquito larvae, it’s not recommended because it can harm other beneficial insects and animals. There are safer alternatives available, such as Bti or mosquito dunks.

How often should I change the water in my fern plant tray or saucer?

You should change the water in your fern plant tray or saucer at least once a week to prevent stagnant water from building up.

Can I use tap water in my fern plant tray or saucer?

Yes, you can use tap water in your fern plant tray or saucer. However, if you have hard water or high levels of chlorine in your tap water, it may not be ideal for your ferns. You can use filtered or distilled water instead.

In conclusion, preventing and getting rid of mosquito larvae in fern plant water is easy with the right tools and knowledge. By following these simple steps, you can enjoy your ferns without worrying about pesky mosquitoes.