The study is entitled Combined solution of Garlic (Allium sativum) and
Lemongrass (Cymbopogon citratus). Specifically, it sought to find out how these two solutions (lemongrass and garlic) can effectively kill mosquitoes. It aimed at looking for an organic and safe measure in treating the abundance of mosquito. Ideally, the researcher’s study promotes a tandem between science and creation’s conservation. The materials composing the solution were 40 mL of the combined solution of Lemongrass (Cymbopogon citratus) and Garlic (Allium sativum). The set up was composed of experimental and control group. The experimental group was being sprayed using a specific commercial pesticide. On the other hand, the control group was being sprayed using the organic mosquito killer. Data were collected to gather relevant information. In the light of the findings of the study, it was found out that the solution composing of 40 mL solution of Garlic (Allium sativum) and Lemongrass (Cymbopogon citratus) extract can kill mosquitoes in a short span of time compared with the commercial one. It took only _________before the mosquitoes died.

II

CHAPTER I

Mosquitoes are vector agents that carry disease causing viruses and parasites that lead to life-threatening diseases from one person to person without catching the disease themselves. It prefers people over others. The preferential victim’s sweat simply smells better than others because of the proportions of the carbon dioxide and other compounds that make up the body odor. A large part of the mosquito’s sense of smell is devoted to sniffing out human targets. Mosquitoes are estimated to transmit disease to more than 700 million people annually in Africa, South America, Central America, Mexico, and much of Asia with millions of resulting deaths. At least 2 million people annually die of these diseases. Today, not just our whole country, Philippines, but also the entire world is facing huge problems in relation to the abundance of mosquitoes in the community. In fact, many alternatives and methods such as different kinds of drugs, vaccines, insecticides, nets and repellants are now discovered and created in order to eradicate mosquitoes, prevent diseases, and protect individuals. We opted to make this study to pursue an alternative organic agent of mosquito eradication. The result of this study is to propose an alternative but organic and safe solution in treating the abundance of mosquito in our locality. Moreover, this aimed to significantly help the residents who are greatly affected by these mosquitoes in a way that this study will provide them a new avenue in treating the great number of mosquitoes.

1

This study entitled Garlic (Allium sativum) and Lemongrass (Cymbopogon citratus) as Mosquito Killer is aimed to know the insecticidal effect of Allium sativum and Cymbopogon citratus on mosquitoes in terms of: a. How effective is the Garlic (Alium sativum) and Lemongrass (Cymbopogon citratus)? b. What is the compared time duration of the commercial product and experimental product?

The study hypothesized that the combined solution of Garlic (Allium sativum) and Lemongrass (Cymbopogon Citratus) is more likely effective than commercial product on mosquitoes in terms of the number of mosquitoes that will die.

The conduct of this study is significant in lessening the number of mosquitoes all over the country. This would extend an alternative solution for everybody spend less amount of money in treating the abundance of mosquitoes here in our locality and therefore cooperation and resourcefulness will primarily be observed by the people. Specifically, this will bring benefits to the following:
Government. This would provide the government a new avenue in lessening the number of mosquitoes. The materials that will be used are recycled and organic in which their availability is easily utilized and therefore they will spend less amount of money in treatment for the abundance of mosquitoes in the society.
Residents. This study raises the awareness level of residents in our country. They would be able to foresee the importance of being resourceful of the things in our surroundings .2

This study focused on the insecticidal effect of Garlic (Allium sativum) andLemongrass (Cymbopogon citratus) on mosquitoes. The materials used were just gathered around the researchers’ household. The investigation utilized 6 mosquitoes that were placed in a transparent container.

Mosquito. From the Spanish or Portuguese meaning little fly is a common insect in the family Culicidate (from the Latin culex meaning midge or gnat). Mosquitoes resemble crane flies (family Tupilidae) and chironomid flies (family Chironomidae), with which they are sometimes confused by the casual observer.
Organic. Any member of a large class of chemical compounds whose molecules contain carbon. Geraniol. A monoterpenoid and an alco0hol. It is the primary part of rose oil, palmarosa oil, and citronella oil (Java type). It also occurs in small quantities in geranium, lemon, and many other essential oils. Solution. A homogenous mixture composed of two substances. Erradicate. Get rid of something completely.
Insecticide. A chemical substance used to kill insects.

3 5

CHAPTER II

Allium sativum yields allicin, an antibiotic and antifungal compound (phytoncide). It has been claimed that it can be used as a home remedy to help speed recovery from throat or other minor ailments because of its antibiotic properties. It also contains the sulfur-contaning compounds alliin, ajoene, diallylsulfide, dithiin, S-allylcysteine, and enzymes, vitamin B, proteins, minerals, saponins, flavonoids, and maillard reaction products which are non-sulfur containing compounds. Furthermore a phytoalexin called allixin was found, inhibiting skin tumor formation. Herein, allixin and/or its analogs may be expected useful compounds for cancer prevention or chemotherapy agents for other diseases.

The composition of the bulbs is approximately 84.09% water, 13.38% organic matter, and 1.53% inorganic matter, while the leaves are 87.14% water, 11.27% organic matter, and 1.59% inorganic matter.

Fresh C. citratus grass contains approximately 0.4% volatile oil. The oil contains 65% to 85% citral, a mixture of 2 geometric isomers, geraniol and neral. Related compounds geraniol, geranic acid, and nerolic acid have also been identified. More than a dozen of other minor fragrant components were also found. Research has shown geraniol to be an effective plant-based mosquito repellant.
Another popular theory is that ingesting garlic can provide protection against mosquitoes. A University of Connecticut study examined this claim with a randomized, double-blinded, placebo-controlled crossover study.
The data didn’t provide evidence of significant mosquito repellence. However, subject only consumed garlic once, and the researchers say that more prolonged ingestion may be needed.
There are also other natural mosquito repellants that are being researched like the Fennel, Thyme, Clove oil, Celery extract, Neem oil, Vitamin B1.
Biopesticide insect repellants (sometimes called “natural”, “botanical” or “plant-based”) has been proven to be as effective as those containing synthetic chemical 4

compounds like DEET. Remember, however, that “natural” doesn’t always mean safe, so you should use plant-based insect repellants as carefully as any other.
With the literature presented above, it can be seen that the study has some bearing capabilities and properties to other work in the sense that it tackles the capacity of some organic materials such garlic juice and lemongrass oil as effective mosquito repellant.

C Chapter III

Materials:

• Blender
• Spray bottle
• Used Cloth
• Plastic containers
• Knife
• Garlic
• Lemongrass
• Grater

• Measuring cup

General Procedure
Preparation of the Solution Materials were first gathered before the conduct of the experiment Cymbopogon citratus and Allium sativum were extracted using a used cloth. The extract of each ingredient was stored for two days. Then, both ingredients were measured to the desired amount. The set up was composed of 20 mL Cymbopogon citratus extract and 20 ML Allium sativum extract.
Application of the Solution After preparing the experimental set up, the solution was being sprayed on the container with mosquitoes. Each set up was composed of two trials. The time it took before the mosquitoes died was observed and recorded

Figure1. Flow of the Methodology

Chapter IV

This chapter presents the data and observations obtained from the experimentation. Furthermore, it shows the discussions that support the underlying problems under investigation.

Table1. Garlic (Allium sativum) and Lemongrass (Cymbopogon citratus) as Moquito killer

Trial
Amount of
Solution No. of Mosquitoes gathered
Time duration No. of Mosquitoes died
Experimental Setup
15 mL
3
3 3
Control Setup
15 mL
3
3
3
Average 15 mL 40 mL 3 3 The table above shows the comparison of Experimental Setup and Control Setup having the same and equal mass upon applying the solution to the mosquitoes.

Table 2. The time it took before the mosquitoes died.
Trial Time
Experimental Setup
Control Setup
Average

The data above show that the solution composed of 40 mL Cymbopogon citratus extract and 40 mL Allium sativum extract has the capacity to kill mosquitoes with the minimum time of only 2.36 minutes.

Chapter V

This chapter presents the summary, conclusion and recommendation of the study under investigation.

SUMMARY The study focused on making an alternative agent of eradicating great number of mosquitoes. Specifically, it sought to find out the insecticidal effect ofCymbopogon citratus and Allium sativum on mosquitoes. It aimed at looking for an organic and safe measure in treating the abundance of mosquito. Ideally, our study would promote a tandem between science and creation’s conservation. The solution’s composition provided a simple how-to ways help people eradicate great number of mosquitoes in the locality. The materials composing the solution were 40 mL Cymbopogon citratus extract and 40 mL Allium sativumextract. The set up was composed of two trials. The solution was being sprayed on the containers with mosquitoes. Data were collected to gather relevant information. From the experimentation, it was found out that the solution composing of 40 mL Cymbopogon citratus extract and 40 mL Allium Sativum extract is effective mosquito killer. It only took 2.45 minutes before the mosquito died.
CONCLUSIONS
Arriving at our results and outputs, we came up that Lemongrass
(Cymbopogon citratus) and Garlic (Allium sativum) are effective mosquito killer. It only takes at least 2.45 minutes before the effects will be observed.
RECOMMENDATIONS
From the investigation, the researchers would like to recommend this study to the students who would pursue the Garlic (Allium sativum) and Cymbopogon citratus (Lemongrass) as Mosquito Killer to find other insects in which the solution is applicable and conduct further study on the utilization of the solution.

TITLE ………………………………………………………………I
ABSTRACT …………………………………………………...II
TABLE OF CONTENTS………………………………..III
CHAPTER I INTRODUCTION ----------------------- 1 STATEMENT OF THE PROBLEM ----- 2 HYPOTHESIS --------------------------- 2 SIGNIFICANCE OF THE STUDY ------ 2 SCOPE AND LIMITATION ------------- 3 DEFINITION OF TERMS --------------- 3
CHAPTER II REVIEW OF LITERATURE -----------------4
CHAPTER III METHODOLOGY --------------------------------5