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Which Local Plant Extracts Will Be an Effective Pesticide on Mosquito Larvae and Still Be Safe for Other Aquatic Life?

CSEF · 2010 Toxicology (Junior Division Only) Honorable_mention Award

Karley J. Lassley · Quail Lake Charter School, Clovis, Fresno County

Overview

Objectives/Goals The purpose of my science project is to determine if local plant extracts will kill mosquito larvae and still be safe for other aqautic life. The reason I am doing this project is to find a natrual pesticide for mosquito larvae that will not cause harm to other living creatures in our enviroment. Methods/Materials For my control I will place 10 mosquito larvae in a container filled with water. In my next test I will place 10 mosquito larvae in a container filled with 15% oleander extract and 85% water. In the next test I will place 10 mosquito larvae in a container filled with 5% oleander extract and 95% water. In the next test I will place 10 mosquito larvae in a container with 15% chrysanthemum extract and 85% water. In the next test I will place 10 mosquito larvae in a container with 5% chrysanthemum extract and 95% water. I will repeat all of these tests using 10 frog eggs in place of mosquito larvae. Results The results of my science project; Which local plant extracts will be an effective pesticide on mosquito larvae and still be safe for other aquatic life?I have found that of the variables used neither the chrysanthemum or the oleander would be safe to use in our ponds to kill mosquito larvae. Conclusions/Discussion After completing my project; Which local plant extracts will be an effective pesticide on mosquito larvae and still be safe for other aquatic life? I have found that my hypothesis for both oleander and chrysathemum were incorrect. While both were very effective in killing the mosquito larvae they both also dammaged the frog egg sack.

Summary statement

To determine if local plant extracts will be an effective pesticide for mosquito larvae and still be safe for our enviroment..

Help received

Mother helped with typing and photos. UC Davis supplied mosquito larvae and mosquito information..

Awards (1)

  • Honorable Mention

Competition history

  • CSEF 2010 Toxicology (Junior Division Only) · Entry J2314

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