How to Safely Kill Mosquito Larvae

Mosquitoes have painful bites and spread disease.

Mosquitoes don't just interfere with your ability to enjoy your yard. They are also transmitters of deadly illnesses, including heartworms and West Nile virus. In particularly hot and humid areas in the U.S., it is nearly impossible to eliminate all mosquitoes. However, by killing mosquito larvae before they develop into adults, you can dramatically reduce the number of mosquitoes living in your yard. There are several safe and environmentally friendly methods available for eliminating mosquito larvae.

Things You'll Need

• Mosquito dunks
• Gambusia fish
• Citronella candles
• Citronella plants

Instructions

1. Put mosquito dunks in standing water where mosquito larvae is developing. Mosquito dunks are harmless to humans and most pets, but they will quickly eliminate mosquito larvae. They are available at most home supply stores and many pet and pond supply shops.

2. Treat larvae developing in water bowls and ponds. Mosquito larvae growing in standing water is typically easier to treat than larvae that grows in water your pets use. There are, however, several safe methods for eliminating this larvae. Gambusias are related to guppies and eat mosquito larvae. They are an excellent choice for mosquito control in ponds.

   If mosquito larvae develops in bird baths or pet water bowls, empty these bowls daily. Larvae thrive in standing water, particularly if it contains decaying matter. Add a tablespoon of apple cider vinegar each day after replacing the water to further cut down on larvae development.

3. Place mosquito deterrents in your yard. If adult mosquitoes find your yard to be inhospitable, they're unlikely to lay eggs in standing water. Citronella plants are small, easy to maintain and have a pleasant smell. They also repel mosquitoes. Plant them in areas infested with mosquitoes and near any standing water. Light citronella candles when you are in your yard to prevent mosquitoes from biting you.

Tips & Warnings

• Clean your gutters at the beginning of each summer and at the end of heavy rain storms. Gutters are a frequently-overlooked egg-laying site for mosquitoes.

References

• Alabama Vector Management: Gambusia: A Little Fish That Helps Solve Big Mosquito Problems
• University of Kentucky College of Agriculture: Mosquitoes: Practical Advice for Homeowners; M.F. Potter, et al.
• "National Wildlife Federation Field Guide to Insects and Spiders and Related Species of North America"; Arthur Evans, Craig Tufts; 2007