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Melia Azedarach (AZ) as a natural insecticide: The effectiveness of the Azedarach leaves and fruit extracts on the drosophila fly

Organization(s):Al Faruk Elementary School
Country:Israel
Student(s):Rawa sori Meram halaseh Sojod obeidat Hala jaabees Sadin jaabees Malak srour Malak jaabees Marah basher Douha basher Shahd basher Amal salameh Shaimaa qunbar Shaimaa shatat Rasha zaatreh Aseel zahayka Qamar jaabees Aqseel sawahreh Rama swahreeh Farah basher Ayat zahaykeh Najah qunbar Haya ewisat Duaa shkirat Duaa anabtawi Mariam salameh Mariam mashal
Grade Level:Middle School (grades 6-8, ages 11-14)
GLOBE Teacher:Nour Bakri
Contributors:
Report Type(s):International Virtual Science Symposium Report
Protocols:Biometry (including Tree Height)
Presentation Poster: View Document
Optional Badges:I make an Impact, I am a Data Scientist
Language(s):
Date Submitted:03/01/2018
Melia azedarach is a special tree with a natural pesticide advantage. In this study, we examined its ability to eliminate or inhibit the reproduction of pests. Our model organism was drosophila melanogaster. We made two different extracts from the azedarach tree: fruit and leaf extract. The extracts sprayed on drosophila flies for 20 days. Activity and mortality rate of drosophila examined. We found that both extracts are efficient for use as natural (organic) inhibitor of drosophila. Fruit extract was more effective rather than leaf extract.


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Comments

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GLOBE Scientist (inactive)
6 Years Ago
Shalom! I am one of your judges and my name is Shirley Leow. I very much enjoyed reading this interesting experiment and the report. I have just one question. How might you have considered the life-span of the flies in your conclusions? Seems from reading the report that the initial flies would live about 14 days, the reproduction period is 15-16 days and treatment was 20 days. Thus how does your observed lower activity and/or death rate correlate with flies killed or sterile prior to final count. Just a question to consider any possible bias in the conclusions. Thank you for your response. Dr. Leow
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GLOBE Scientist (inactive)
6 Years Ago
Dr. Leow again. You can also consider my question below as related what you have learned about the treatment period for effectiveness of AZ. This is important for economic and supply considerations.
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Marta Irene Kingsland
6 Years Ago
Hi, I am one of your judges. My name is Marta Kingsland
I enjoyed reading this project.
My question is did you work with some protocol from Biosphere? Which one?
Thank you!