Synergistic Effects of Kantutay (Lantana camara) Flower and Leaf Crude Extract in Elimination of Mosquito Larvae

An organic mosquito larvicide that aims to lessen the Dengue cases in the country.

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Eligibility Criteria

  • I confirm that I am fully aware of the eligibility criteria and terms of the Act for Biodiversity Challenge and that I am eligible to apply.
  • I am 18 years old or older.

Initiative's representative name

Jed C. Tolentino

Initiative's representative date of birth

October 20, 1987

Initiative's representative gender

  • Man

Headquarters location: country

  • Philippines

Headquarters location: city

Batangas City

Where are you making a difference?


Website or social media url(s)

Date Started


Project Stage

  • Start-up (first few activities have happened)

Yearly Budget : What is your current yearly budget for the initiative?

  • Less than €1k

Organization Type

  • Educational institution

1. Founding story: Share a story about the "Aha!" moment that led the founder(s) to get started or the story of how you saw the potential for this project to succeed.

It started when the researchers were finding ten topics for their upcoming title defense. One of the researchers had an idea of conducting a study using a plant called Kantutay. It was a plant known to grow abundantly in open fields or nearby grass, which has a certain scent that insects, particularly mosquitoes doesn't like. With this, using Kantutay as a mosquito larvicide became one of the topics. After the ten topics were passed and reviewed by our adviser, Dr. Jed Tolentino, none of our it were accepted. The researchers eagerly defended it and was finally accepted after a few arguments. Then, the researchers started to conduct the study with full enthusiasm.

2. The problem: What problem are you helping to solve?

The researchers created a solution against the alarming rise of Dengue cases in the Philippines. According to WHO, there are 50 to 100 million cases of Dengue worldwide and thousands of deaths, which were mostly children. With this alarming amount of cases, the Philippine Department of Health declared a National Epidemic last 2019. The Dengue cases in the country continues to rise due to its tropical climate and poor public sanitation. A solution that will help all social classes is needed.

3. Your solution: How are you working to solve this problem? Share your specific approach.

In order to lessen the amount of Dengue cases in the country, the researchers had learned that creating a mosquito larvicide is more efficient compared to an adulticide. With the mutational changes such as insecticide resistance, killing the mosquitoes during larval stage is recommended. Through the use of Kantutay flowers and leaves, the Aedes aegypti larvae will be exterminated with ease. With the combination of phenols, flavonoids, saponins, and sterols, the organic larvicide will be able to block the respiration of the larvae, which will lead to its death. The researchers conducted multiple trials of experimentation in order to determine the correct ratio of flower crude extract to leaf crude extract which would give the best results. In the end, the mixed (50/50) Kantutay crude extract showed the fastest time in exterminating the mosquito larvae, 700% faster than the results of pure flower or leaf crude extract only. The final output was named as "Canthanol." It was based on the Kantutay plant which was used as the organic larvicide and the ethanol which was used as a solvent in extracting the needed pythochemicals.

4. Innovation: How are you innovating or using unique approaches to solve the problem?

This study studied both the effects of Kantutay leaf and flower crude extracts and its synergistic results. Former studies only used the leaves as an organic larvicide. The researchers also used the crude extract rather than the pure extract, due to it being easier to be mass-produced in the future.

5. Collaboration: How does your initiative seek to bring key players together to preserve biodiversity?

This research can be furthered studied by the scientific community for more efficient results. It needs the collaboration of botanists, chemists, and entomologists in order for it to improve. It may seem that the product is just a crude extract but with more expansive researches by the scientific community, it could create a better version of the current status of the product or discover more purpose for the used plant.

6. Impact: how has your project made a difference so far — in terms of both business outputs and social impact? How do you plan on measuring progress?

Currently, it is a research conducted under the supervision of our educational institution, Batangas State University. Currently, there is a low impact to the society. With enough sponsorship and further studies by the scientific community, this product could reach every corner of our country, or even reach internationally.

7. Growth strategies: what are your main strategies for scaling your impact?

In order to reach the project's full potential impact, it must be first tested in small households in our city, Batangas City. Afterwards, if proven effective and there are willing consumers, the government or a private company or educational institution could help us spread it into different provinces, especially in the National Capital Region (NCR), as it has the most dense population.

8. Creating shared value: How does your initiative create value for society? Or different stakeholders?

As Dengue is one of the public health problem that is currently faced by the Philippines, through the mass utilization of our product, it could lessen the cases of the said disease. On the other hand, Kantutay is known as an invasive plant that grows abundantly nearby any kind of grass. By using this plant as an organic larvicide, this gives the Kantutay an economical use. Mass production will not be a problem, as this plant is suitable in the tropical climate of the country. This could benefit the different sectors of the Filipino society, such as medical professionals, botanists, and the general Filipino people themselves.

9. Financial sustainability plan: can you tell us about your plan to fund your project and how that plan will be sustainable in the short, medium, and long term?

Currently, the financial costs of the project is from the researchers themselves. This is the greatest adversity that the researchers are facing. If ever a company, organization, or an educational institution will support us financially, it would be truly welcomed.

10. Team: what is the current composition of your current team (types of roles, qualifications, full-time vs. part-time, board members, etc.), and how do you plan to evolve the team’s composition as the project grows?

The current composition of the team is an adviser and four researchers. Our adviser is a current instructor in our educational institution. The four researchers are currently Grade 12 students under the STEM strand. As the project grows, more people, specifically from the scientific community, are welcomed to be part of this team. Further studies are needed to be conducted in order to create a more efficient organic mosquito larvicide.

11. How did you hear about this challenge?

  • Recommended by others

Attachments (1)


This is the complete copy of the study conducted by the researchers. It tackles the rising Dengue problem in the Philippines and how an innovative way of mosquito vector control is created, which is a larvicide. Through using a plant with no purpose initially, the researchers conducted multiple trials to determine the best mixture that will exterminate Aedes aegypti larvae. This study aims to reach all Filipino citizens, in order to prevent further Dengue cases.


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