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Cow Manure: Mosquito Repellent Rod Essay

This investigatory project is heart fully dedicated to the dengue victims who suffered a lot because of mosquitoes. We want to extend our deeply concern to them through this Cow Manure:

Mosquito Repellent

On the other hand, we also dedicate this project who abide and support us from the start until we finished this investigatory project.


We would like to acknowledge the following persons and affiliations who gave contributions, motivations, moral and financial support likewise the following: Our families serve as our inspiration in this investigatory project. Mr. Rodolfo Cassanova Jr. , our patient and understanding instructor who encourage us to strive harder for the betterment of our own investigatory project.


Mosquitoes are present everywhere. They are the main carrier of dengue and malaria which cause to death. Every year the rate of death caused by dengue and malaria continue to get higher. Some of the ways of to prevent these are cleaning the environment and using insect repellence that totally wrecked the fatal defense of mosquitoes. Insect repellence is also harmful to us. It is made of chemicals which bring to us in jeopardy. These chemicals affect the mosquitoes and even our health. So instead of good effects, the chemical repellence may take our health at risk. That is why we came up to one purpose. This is the reason why the researcher decides to make cow dung as a mosquito repellent. There are commercially available mosquitos repellent in the market. The commonly used commercial mosquito repellent in the Philippines is quite unaffordable and uses chemicals that may cause irritation. The researcher plans to use all natural ingredients in the cow dung mosquito repellent in this study. Since the ingredients or materials to be used are natural, the cow dung mosquito repellent is made to be affordable and easy to make and it is environment friendly.

This is study aims to determine the effectiveness of Cow Manure as Mosquito Rod, and sought to answer the following questions;

1. Do cow manure effective as mosquito rod in terms of;
a. Duration
b. Texture
c. Eco-friendly or Toxicity
2. Is there a significant difference among the treatments in terms of;
a. Duration
b. Texture
c. Eco-friendly or Toxicity
3. Which among the treatments held in terms of;
a. Duration
b. Texture
c. Eco-friendly or Toxicity


This study entitled Cow Manure: Mosquito Rod is beneficial to the following personnel; a. Citizen, the product of this study will be a help to prevent the widening cases of dengue, and used a mosquito rod that is environmental friendly. b. Future Researchers, this study will serve as guide to for future researchers c. Government Official, the study will guide them to know the effects of Cow Manure in the production of mosquito rod.


The study Cow Manure; Mosquito Rod was conducted at Ilocos Sur Polytechnic State College located at Quirino, Tagudin, Ilocos Sur. The study aims to determine the effectiveness of Cow Manure as Mosquito rod in terms of Duration, Texture and Toxicity.

Friedman Test will be the statistical tool used to determine the significant of each treatment. And Time and Prick test will also use to determine the duration and texture of the treatments


MOSQUITO- a slender long-legged fly with aquatic larvae. The bite of the bloodsucking female can transmit a number of serious diseases including malaria and encephalitis. ROD- a thin straight bar.

REPELLENT-a substance that dissuades particular insects or other pests from approaching or settling LEMON GRASS-a fragrant tropical grass that yields an oil that smells lemon. It is widely used in Asian cooking and in perfumery and medicine. MALARIA-an intermittent and remittent fever caused by a protozoan parasite that invades the red blood cells. The parasite is transmitted by mosquitoes in many tropical and subtropical regions.

DENGUE-a debilitating viral disease of the tropics, transmitted by mosquitoes, and causing sudden fever and acute pains in the joints. ORGANIC- natural matter or compounds with a carbon base, and also refers to food and meat grown or raised without chemicals or pesticides. COW DUNG- the undigested residue of plant matter which has passed through the animal’s gut. CHEMICALS- a substance obtained by a chemical process or producing a chemical effect INSENCE- a substance that is burned for the sweet smell it produces.


The Organic Mosquito Rod is a mosquito repelling incense. It is usually shaped spiral but to make it easier we made it a rod. The rod is usually a held at the bottom tip of the rod, suspending it in the air. Burning usually begins at the tip of the rod and progresses slowly towards the bottom rod, producing a mosquito repellent smoke. Typical mosquito incense can measure 15 cm. in diameter and can last up to 2 hours or more depending on the wind present while the rod can be measured 10-12 cm. long and can last up to an hour and 20 minutes once burn at the tip of the rod. Lemon grass (Cybopogon citrates) is a perennial herb widely used in Asian cuisine. It is commonly used for teas, soups and curries. In the Philippines lemon grass is called “tanglad” commonly used to savour Filipino delicacies.

In a study Evaluation of Herbal Essential oil against Mosquitoes by the Department of Plant Production Technology and Faculty of Agricultural Technology in Bangkok Thailand affirmed that lemon grass indeed contains organic repellents against mosquitoes. In a laboratory experiment, volunteers were instructed to apply oil extracts from different target crops including lemon grass on one of their arms, while the other was untreated (control). Both hands were inserted in a cage containing 250 nulliparous female mosquitoes ageing 5-7 day old. Mosquitoes were observed in terms movements and behaviours. Results showed that oil extracts from lemon grass, peppermint, eucalyptus, citronella, and cloves were effective to repel both dengue and malaria mosquitoes.

However, the repellent effects of these oil extracts do not last longer compare to synthetic chemicals, thus, further study to improve its formulation and efficacy is needed. Another study on “The Effectiveness of Lemon Grass as a Natural Mosquito Repellent” by the University of Southern California (USC), comparing the repellent efficacy of lemon grass extract to the DEET (N,N-diethyl-m-toluamide) based repellents or the leading commercial brands for insect repellents has found that lemon grass extract could be used as an alternative to chemical insect repellent.

Dried Cow dung
Used papers
Dried lemongrass
Mortar and Pestle


Result and Discussion
Organic Rod
· When we burned the rod, just a few seconds the mosquitoes was no longer flying around the room
· Burned for 1 hr (45 inch in diameter)
· After an hour of continuous exposure to its smoke, neither dizziness nor coughing was experienced Tiger Mosquito Coil
· When we burned the coil, just a few seconds the mosquitoes was no longer flying around the room
· Burned for 1 hr and 30 mins (45 inch in diameter) · After an hour of continuous exposure to its smoke, dizziness and coughing was experienced


“Prevention is better than cure” that statement leads us to propose this project. Cow’s Manure Mosquito Rod helps us to prevent from having a disease without harmful effect that usually we get from chemical insecticides. According to the research, cow manure is an effective insect repellant so we actually want to improve it. Through different experimentations, we have proven that cow manure is an effective organic insecticide. We improved it by adding dried lemon grass which makes the product more effective. Lemon grass adds fragrance which is not irritable to the nose. Cow’s manure mosquito rod with dried lemon grass shows effectiveness that it actually repel the mosquitos


Using mosquito repellant is one way to prevent diseases caused by mosquitoes. But we cannot deny that there is a time that we are lack of money for our daily needs. So we recommend our investigatory product as a replacement. The good thing is, it is an organic mosquito repellant made from cow dung together with paper and lemon grass to add scent on it. We already tried it and we can say that it is an effective protection from mosquitoes. It is easy to do and it helps us to save money for important uses. We must ensure our safety especially nowadays that diseases continue to spread everywhere.

Cow manure might look disgusting but we must give a try in using this organic mosquito repellant. So we recommend it to you then you give your final verdict after using it.

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