GARLIC EXTRACT AS AN INSECTICIDE
Janella T. Alimpipinig
Princess Janelle V. Inere
Jeff-Wensley Nagum
Capstone Project
Inquiries, Investigation, and Immersion
Quirino National High School
School Year 2022-2023
TABLE OF CONTENTS
Page
Abstract……………………………………………………………………………………....i
Acknowledgement………………………………………………………………………..….ii
Dedication…………………………………………………………………………………..iii
Chapter 1. Introduction
A. Background of the Study………………………………………………………....1
B. Statement of the Problem…………………………………………………………2
C. Scope and Delimitation…………………………………………………………...3
D. Significance of the Study……………………………………………………...….4
E. Conceptual Framework…………………………………………………………...5
F. Definition of Terms……………………………………………………………….6
Chapter 2. Review of Related Literature and Studies
A. Review of Related Literature and Studies……...……………………..…………7
B. Synthesis…………………………………………………………………..……14
Chapter 3. Research Methodology
A. Research Design………………………………………………………..…...….15
B. Research Environment or Participants……………………….……………...…15
C. Research Gathering Procedure…………...…………………………………….16
D. Research Instrument…..…………………………………………………….….18
E. Statistical Analysis………………………………...………………………...…18
F. Cost Estimate…………………………………………………..………........….20
G. List of Materials………………………………..……………………………....21
H. Gantt Chart……………………………………………………………………23
Chapter 4. Presentation, Analysis and Interpretation of Data
Table 1. Level of performance of Garlic Extract as an insecticide in terms of killing
or repelling insects in two different treatments……………………………...……..24
Table 2. The analysis of extent of variation of this Garlic Extract Insecticide in two
different treatments………………………………………………….….………….25
Table 3. T-test with unequal variances of the Garlic extract as an Insecticide in two
different treatments…………………………………………………………………………26
Table 4. The overall performance of Garlic Extract as an Insecticide of killing and
repelling insects in two different treatments…………………………………….…26
Chapter 5. Summary of the Findings, Conclusion and Recommendation
A. Summary of the Findings…...……………………………………..……………27
B. Conclusion……...………………………………………………………….……28
C. Recommendation……………...……………………………………………..….29
References…………………………………………………………...……………..30
Appendices……………………………………………………………………..…..32
Abstract
This study is conducted to determine the level of performance of Garlic Extract as an
Insecticide. Experimental method was used on this study. A total of 30 farmers who are using
insecticide was the chosen participant of this study. Statistical tool such as Mean and Standard
deviation, T-test and ANOVA were used to analyze the data gathered from the participants.
The study used two different treatments for testing.
Based on the gathered data, the treatment 1 in terms of killing and repelling insects
are moderate extent and the treatment 2 is also described as excellent. These results are all
from the two different treatments that are used for testing. Based on the result of the study
Garlic is effective to use in making an insecticide. Based also from the result of the study
there is no significant difference among the two different treatments used in testing for the
reason of two products were described as excellent. Therefore, whatever product will use
they are all effective to kill or repel vegetable insects. Generally, Garlic is an effective
material to use in making an insecticide.
Keywords: Garlic, Insecticide, repel, extract.
ACKNOWLEDGEMENT
The researchers are using the opportunity to express their deepest gratitude to
everyone who supported them throughout the research study.
First of all, the researchers would like to thank the Almighty God for His enduring
grace, guidance and protection that He has bestowed upon us during this research project.
The researchers would also like to express their sincerest gratitude to their Research
adviser, Mr. Mark-John R. Prestoza and Capstone adviser, Mrs. Glenda S. Javier for their
continuous support, patience, motivation, guidance and immense knowledge they impart on
their research study.
To their parents, who have continuously supported them financially to accomplish
this study and for their guidance, encouragement and inspiration to them throughout their
lives, a very special thank you for your parental presence and constant guidance to them.
They would also like to express their appreciation to the School Principal, Dr.
Michael T. Borromeo and Assistant School Principal, Ms. Noralyn D. Nagum for their
advice, support and guidance from the start to the completion of the study.
To their grammarian Ms. Ladylin A. Laverinto, who patiently helped them correct
the grammar in their manuscript.
Additionally, to the respondents who share their time and effort in collaboration for
answering the questionnaires without any hesitation.
DEDICATION
This research paper is dedicated to the Research and Capstone teachers who are
behind in the success on making this study, through guiding and helping the researchers to
complete the study. This is also dedicated to the parents of the researchers who is very
supportive to the researchers, both financially and mentally as they were there encouraging
and supporting the researchers throughout the making of this research paper. The researchers
also dedicate this study to the people who are using insecticide to help them fight against the
problems caused by insect pests. Moreover, the researchers also dedicate this to the future
researchers, for them to have references in their future studies. Furthermore, this study is also
dedicated to the school who gave the opportunity to the researchers to test and improve their
skills in making this study. Lastly, this study is dedicated to the Almighty God who gave the
knowledge, wisdom and strength to the researchers in making this study.
Janella T. Alimpipinig
Princess Janelle V. Inere
Jeff-Wensley Nagum
CHAPTER 1
INTRODUCTION
A. Background of the study
Many plant species produce substances that protect them by killing and
repelling
the insect that feed on them. Garlic produce extract that alters the hormone of insects.
Relatively, farmers experiencing the lost and damaging of crops because of the
number increasing of insects. Nowadays ,farmers and peoples are facing from lack of
vegetables because of the lost of crops by the insects. In barangay Sta. Lucia,Quirino ,Isabela
some farmers are easily affected by the insects.
Today, one of the major problem of farmers in barangay Sta.Lucia ,Quirino, Isabela.
is the increasing of the numbers of insects in their plants. Some farmers and gardeners are
complaining because of the insects damaging their plant.
In this light, Garlic has been considered useful in our society, they use garlic
medicinally. Consequently herbal plant, specifically garlic , can be considered as an
insecticide.
In addition, herbal plant , specifically garlic can be easily converted as insecticide.
In fact , herbal plants is active in antioxidants, like oregano, garlic, thyme and cinnamon.
Insecticide is popular for killing and repelling which contributes to our farmers.
In the study of Natural Horticulture (NH), Garlic is known for stimulating properties
on plant growth and also protects plants due to its bactericidal and fungicidal activity. Their
study shows that the antioxidant properties of aqueous extracts of garlic were evaluated by
DPPH method, for the ability to provide stress resistance in plants. This shows that garlic
extract can be use an alternative insecticide in killing fruit and vegetable insects.
This research aims natural products that produce insecticide and need to choose
these insecticides rather than those synthetic materials that will help farmers and
community to lessen the infestation of plants and or vegetables.
B. Statement of the Problem
This study aimed to evaluate the efficacy of Allium Sativum (Garlic) extract as a
natural insecticide in killing vegetable insects.
Specifically, this study sought to answer the following question.
1. What are the performance of garlic extract as insecticide?
2. What is the extent of variation on the performance of the insecticides in killing
vegetable insects from the different treatment ?
3. What is the magnitude effect of garlic insecticide from the different treatment?
4. Based on the findings of the study, what are
efficacy of garlic extract as
insecticide?
C. Scope and Delimitation
The focus of the efficacy of Allium Sativum (Garlic) extract as a insecticide with the
specific focus on killing bugs in vegetables. Only the effectiveness of the garlic extract
examined in this study. This study carried out in barangay Sta. Lucia, Quirino Isabela,
beginning in the second semester. Out of many farmers in Barangay Sta. Lucia Isabela, 30
farmer chosen to test our natural insecticide if does our natural insecticide accepted by them.
Additionally, 3 days, time frame has been established to encompass the extracting phase of
this research.
Locale of the Study
Figure 1. Google map of Sta. Lucia, Quirino ,Isabela
This figure showed the locale study that conducted at the barangay Sta. Lucia
,Quirino Isabela .This place was chosen because the researchers want to identify and
evaluate the problems encountered by the farmers.
D. Significance of the Study
The study was conducted to determine the effectiveness of Allium Sativum
(Garlic) as natural insecticide. The insecticide can conserve biodiversity. The result
of the study hopes to benefit the following:
Community. The proposed study is beneficial to the community and gardeners
regarding Garlic as insecticide
Department of Agriculture. The result of this study can address the obstacles
faced by beginning farmers can offer shares resources and oppurtunities.
National Food Authority. The result of this study can promote the integrated
growth development of the industry.
Department of Environment and Natural Resources. The result of this study can
address the conservation,management, development and proper use of the countries
mmmof the country’s environment and natural resources.
Farmers.The result of this study would benefit the farmers considering the
environmental cost of chemical alternative
Gardeners . The result of this study would benefit for the researchers by means of
looking further solution to the problem in preventing mate to our health and can
make difference between economic and environmental issues.
Researchers. The study served as a significant endeavor for the researchers by means
of looking further solution to the problem in preventing threats to our health and can
make difference between economic and environmental issues.
Future Researchers. The result of this study may provide data that will serve as basis
for future researchers who will attempt to conduct other studies along the area.
E. Conceptual Framework
INPUT
Garlic
PROCESS
Performance of
garlic as
insecticide
OUTPUT
Insecticide
FEEDBACK
Figure 1. Paradigm of the Study
The figure showed above was the paradigm of the study that illustrated the
performances of the development system. The idea of having the Input-Process-Output
system approach was used to describe the paradigm of the study conducted. The input process
showed the input needed Garlic and Water in order to prove if the extract is effective and if
it will beneficial among farmers of Barangay Sta. Lucia, Quirino , Isabela. The process
showed the data collection and analysis on practices. The output of the study was a natural
insecticide which is garlic extract to kill or repel vegetable insects.
F. Definition of Terms
The Researchers choose to define some of the following terms and materials that can
be use so that readers can understand the factors that discussed throughout the study.
Biodiversity- biological diversity in
environment as indicated by numbers of
different of plants and animals.
Garlic-has a non-toxic mode of action for repelling target insects.
Bulb-serves as the main component of natural insecticide.
Natural-made without the use of artificial chemical
Plant Diseases-can affect all plants of all ages and in various season.
Spray Bottle- use to mix concentration such as extract of garlic and water.
Strainer-use to separate extract from bulb
Gradual Syringe- used to measure the volume of liquid.
Water- is used to wash any equipment that will be used and add to make natural
insecticide.
CHAPTER 2
Review Related Literature and Studies
This chapter is a discussion of the related literature and empirical studies which are
perceived to have a direct bearing on the presented in this chapter.
A. Review of Related Literature and Studies
According to El-Beih N., Ramadan G., Khorshed M., and Ahmed R., (2021),
poisoning by pesticides is a serious clinical issue everywhere. The frequently used
insecticides malathion (an organophosphate) and carbaryl (a carbamate) might be harmful to
both humans and animals' health. Insecticide residue is frequently discovered in food,
particularly in impoverished nations. In this study, we looked into some biochemical changes
associated with dyslipidemia, tissue damage, and the impairment of liver and kidney
functions in male albino rats treated with 0.1 LD50 doses of malathion (89.5 mg/kg body
weight) and/or carbaryl (33.9 mg/kg body weight). We also assessed the potential modulatory
effects of 200 mg/kg body weight of a standardized odorless (free of allicin) Kyolic aged
garlic extract (AGE, containing 0.14) (p.181).
González-Macedo M., Cabirol N., and Rojas-Oropeza M. (2021) stated in the second
experiment, nettle and garlic both caused 50% adult mortality. With a 4% infection rate, nettle
extract was more effective in protecting seeds than other substances. The infestation rate
among the seedlings treated to garlic extract was 27.5%. Germination rate for seeds was
2.38%. 1.12% with garlic extract, 1.19% with nettle extract. the practice practiced by locals
requires adjustments to improve its effectiveness and potential future usage in Integrated Pest
Management.
In this chapter, we examine the efficacy of natural pesticides like neem, garlic, and
essential oils. The research that has been done on the usage of these essential oils as pesticides
is also a major emphasis of this chapter. The effectiveness of plant-based biological
insecticides can be affected differently by processes that utilize differing volumes,
concentrations, and ratios of active components. Finally, employing homemade pesticides
would enable us to adopt environmentally benign pest control techniques while reducing the
losses that occur during food production.
According to Kari Iamba and Sandrina Malapa (2020) the Diamondback moth,
Plutella xylostella, has traditionally been controlled through the conventional use of synthetic
pesticides. due to the pest's resilience, attempts have failed. Extracts of garlic, chili, and
Seasol® seaweed. The effectiveness of the approach against DBM was evaluated. Both garlic
and chili are widely available and have possessing insecticidal abilities, being economical,
and working well with natural adversaries(p. 1240).
According to H.M. Hamada, M. Awad, M. El-Hefny and M.A.M. Moustafa (2018)
chemical pesticides have been used to control the Spodoptera littoralis infestation, but
nowadays, environmentally friendly pest control solutions that don't have these chemicals'
unfavorable side effects are becoming more and more crucial. One of the alternate methods
for pest management is the use of natural materials, such as oils and plant extracts. In the
current study, the insecticidal effects of oils from ginger rhizomes (Zingiber officinale) and
garlic cloves (Allium sativum) were assessed on S. by using sublethal doses on Littoralis
(p.84)
Garlic’s (Allium sativum) odour can be used to drive away numerous pests, including
mice, birds, worms, and others, from rice plants. Essential oils, allisin, and other chemical
compounds that are valuable for warding off certain pests are among those found in garlic.
The component allisin gives garlic its characteristic smell. According to, garlic extract can
also be used to ward off insects(2015).
A substance called garlic leaf agglutinin (ASAL) is poisonous to some caterpillars
and sap-sucking insects including cotton and pea aphids. Some insects, including the rice
brown plant hopper, green leaf hopper, chickpea aphid, mustard aphid, and other hemipteran
insects, find ASAL to be highly antinutritional and poisonous (Mondal et al. 2011). Garlic
plants are protected by this substance from a variety of insect infestations.
A garlic have long been known for their antimicrobial properties. Although the
precise modes of action of these garlic-derived bioactive is complex, recent researchers have
given a new data that deepen our understanding of garlic. Wherein, their study against cropdamaging pests is reviewed. A garlic, manifests itself in diverse insecticidal activities. These
activities open a new understanding to develop this natural chemistry as a green
pesticide(Ryan Tinson, et-al, 2016, p-3).
The review of Recent Advances in Redox Active Plant and Microbial Products, garlic
extracts has a broad spectrum activity that can turn into an alternative to many chemical
insecticides against numerous food crop pests offering a “botanical” (Awais Anwar, et-al,
2014, p-323).
The hypothesis ingestion of garlic gives protection against bloodsucking pests. It as
investigated and exposed to a laboratory using randomizer, double-blind Ed, placebocontrolled crossover study. Subject were ask to consume either garlic or placebo. The study
did not provide evidence of significant systematic mosquito repellence. A limitation of the
study is that more ingestion of garlic may be needed to accomplish a repellence (M Hein, etal, 2005, p-84).
B. Synthesis
Studying the use of native medicinal herbs to stop the spread of the red flour beetle
Herbst's Tribolium castaneum is effective against wheat grains. Turmeric leaf extracts in
acetone (Curcuma longa) to assess their anti-feedant, toxicant, and growth-regulating
activities, and garlic (Allium sativum). Sativum's effectiveness against the examined
pathogens thus gives a scientific justification for its use in conventional and alternative
medicine.
One of the alternate methods for pest management is the use of natural materials, such
as oils and plant extracts The hunt for novel bio-pesticides in agriculture is gaining steam in
response to growing environmental concerns and tighter regulations on the use of many
current chemical pesticides. Despite the complexity of the specific mechanisms of action of
these bioactives produced from garlic, current research has revealed a number of fresh
perspectives that have advanced our knowledge of garlic-derived goods including garlic
extracts and oils. Here, their defense against several crop-damaging pests.
CHAPTER 3
RESEARCH METHODOLOGY
This chapter presents methodology used in the study. It includes the discussion of the
research design, research environment or participants, research gathering procedure , research
instrument, statistical analysis, cost estimate , list of materials/components and gantt chart.
A. Research Design
The experimental method was used in the study whereas; the experimental method is
systematic and scientific approach to research in which
the researchers manipulates
variables, controls and measures any change in one variable.The treatment were applied in
the different volume of garlic extract and tap was used as the control.
The researchers conducted experiment of the efficacy of Garlic then extract as an
insecticide to kill bugs of the vegetables.
B. Research Environment/Participants
This study was conducted at Barangay Sta. Lucia, Quirino, Isabela. This place was
chosen because the researchers want to identify the problems being encountered by the
farmers of this barangay. This categorized into only 1 group namely (a) farmers.
Participants
Sector
Vegetable farmers in Farmers
Municipality of Quirino
Isabela
No. of Respondents
30
Percentage(%)
100%
-barangay Sta. Lucia
vegetable
farmers
affected
by
insects,specifically bugs
C. Research Gathering Procedures
a.) Collection and Preparation of garlic extract
The garlic gathered by the researchers. The study employed a total of 1 kilo garlic.
The researchers bought the garlic at Quirino Public market. The garlic crushed in the
juicer to produce extract. And put it in a container, store for 2 days.
b.) Collection and preparation of insects
The researcher collected different kind of insects found at gulayan of STEM 12 in
Quirino National High School.
c.) Preparation of the treatment
The specified amount of garlic that extracted for each treatment pounded separately
during the extraction process, so the treatment 1 is 50 ml garlic extract to 20 ml of
water. For the treatment 2, 100ml of garlic extract to 50 ml water.
The quantity of garlic extract utilize per ml of water used to indicate the various
concentrations of garlic extracts . The treatments used the following ratios or
quantities of garlic extract added to a ml of water in 2 treatment 1 and 2.
Treatment
Amount of
Amount of
Amount of
Amount of
water (ml)
water (%)
garlic extract
garlic extract
(ml)
(%)
1
20ml
20%
50ml
50%
2
50ml
50%
100ml
100%
d.) Experimental Proper
Using the juicer, crush the garlic to produce extract, combine it with an amount of
water in a spray bottle then shake it for 5 seconds to mix well and store for 2 days .
e.) Observation of Result
After the process of the experiment, the result tested by spraying it to more in a open
area or net.
D.Research Instrument
In this section it shows the different tools used in the study and it also discusses
here the methods used by the researchers to gather data. Data that beneficial to the
researchers to determine what necessary materials
Experimental. To determine a relationship between two (2) variables which is
the dependent and independent variable.
Observation. The researchers used this to see their subjects make react to
situation in their natural setting.
Rating Scale. It is used for the rate in the experiment. The researchers be used
this to gather information that provides relative information about the garlic
insecticide.
E. Statistical Data Analysis
The following are the statistical procedures used to interpret the data gathered in the
study.
1. Mean/Standard deviation
During the actual data collection procedures,this statistical tool was used to compute
the number of the response sin gathering the data of the variable in the performance of the
garlic as insecticide
∈𝑥
Formula:
X= 𝑁
Where: X= mean
∈ x= sum of all scores
N=number of cases
2. Cohen’s D
To calculate the differential magnitude effect of the experimental manipulation on the
dependent variable of its magnitude or effect size of garlic as insecticide
Coheren’ D is been used.
M e−Mc
d = sample SD
𝑁−3
x(
)
pooled 𝑁−2.25
3. Likert scale
The likert scale below serves as guide for interpreting the data gathered in the level
of performance of the garlic extract as insecticide.
Scale
Mean
Verbal Description
5
4.20-5.00
Very Great Extent
4
3.40-4.19
Great Execellent
3
2.60-3.39
Moderate Extent
2
1.80-2.59
Low Moderate Extent
1
1.00-1.79
Very Low Extent
4. T-test - is used to compare the means of two different set,in this case the performance of
garlic extract as insecticide.
Formula:
Md
t = √ϵx2d
N(N-1)
Where;
t= T-test
Md = means of different pre-test and post-test
Xd = deviation in every subject (d=Md)
∈ x2D =Total of quadrate deviation
N = subject of sample
D = decide by N-1
F.Cost Estimate
This part of research shows the quantity and cost of the materials needed for the research.
Material
Quantity
SRP
Garlic
1kilo
130
Water
1 liter
0
Container
6 pcs.
103
Spray Bottle
1pc.
28
Gradual Syringe
1pc.
10
Strainer
1pc
55
Juicer
1pc.
180
Total: 506 pesos
G.List of Materials/Components
The following are the materials and equipment used in the experimental research.
CONTAINER
Quantity: 1pc.
It is used to put the excess liquid and also to put the different kinds of bugs
GRADUAL SYRINGE
Quantity: 1 pc.
20 ml syringe used to measure the volume of water and the garlic that extracted
SPRAY BOTTLE
Quantity: 1 pc
120 ml used to mix concentration such as extracted garlic and water
GARLIC
Quantity: 1 kilo
Has a non toxic mode of action for repelling and/or killing insects. It is the main
components of the insecticide.
STRAINER
Quantity: 1
It is used to separate extract from garlic
H.Gantt Chart
CHAPTER 4
Presentation, Analysis, and Interpretation of Data
This chapter presents the analysis and interpretation of data regarding on the level of
performance of garlic extract as an insecticide.
Table 1. Level of performance of Garlic Extract as an Insecticide in terms of killing or
repelling insects in two different treatments.
TREATMENT 1
TREATMENT 2
20% water
50% water
50% garlic extract
100% garlic extract
Performance
SD
Mean
Qualitative
description
Product 1
0.27
3.27
Excellent
Product 2
0.28
3.30
Excellent
The table 1 shows the level of performance of Garlic Extract as an Insecticide in terms
of killing or repelling insects in two different treatments. The two performance obtained the
qualitative description of “Excellent”, treatment 2 with the highest mean of 3.3 and treatment
1 with the mean of 3.27.
Based on the data presented, the researchers found out that the performance of Garlic
Extract as an insecticide in terms of killing or repelling insects in two different treatments
were all moderate extent.
It is interpreted that the Garlic Extract were all excellent in the performance of Garlic
Extract as an Insecticide in terms of killing or repelling insects.
According to Kari Iamba and Sandrina Malapa. the Diamondback moth, Plutella
xylostella, has traditionally been controlled through the conventional use of synthetic
pesticides. due to the pest's resilience, attempts have failed. Extracts of garlic, chili, and
Seasol seaweed. The effectiveness of the approach against DBM was evaluated. Both garlic
and chili are widely available and have possessing insecticidal abilities, being economical,
and working well with natural adversaries.
Garlic’s odour can be used in repelling insects, including mice, birds, worms, and
others, from rice plants. Essential oils, allisin, and other chemical compounds that are
valuable for warding off certain pests are among those found in garlic. The component allisin
gives garlic its characteristic smell that can also be used to ward off insects.
Table 2. The extent of variation of this Garlic insecticide in different treatment.
Product
Sum of
df
square
Between Group
0.02
Mean
f
16.17
Decision
square
1
0.02
Not significant
0.06
Within Group
p-value
58
0.80
0.28
The table 2 shows the extent variations of Garlic Extract as an Insecticide in terms of
killing and repelling insects in two different treatments.
Based on the result of the study, the researchers found out that there is no significant
difference in the mean of the treatment 1 and treatment 2.
According to Ryan Tinson, a garlic have long been known for their antimicrobial
properties. Although the precise modes of action of these garlic-derived bioactive is complex,
recent researchers have given a new data that deepen our understanding of garlic. Wherein,
their study against crop-damaging pests is reviewed. A garlic, manifests itself in diverse
insecticidal activities. These activities open a new understanding to develop this natural
chemistry as a Green Pesticide.
Table 3. T-test with unequal variances of the Garlic extract as an Insecticide in two
different treatments.
Product
Mean
SD
Treatment 1
3.27
0.27
t
df
3.3
Decision
Not
1.67
Treatment 2
p-value
58
0.80
significant
0.28
Table 3 shows the unequal variances of the garlic extract as an insecticide in two
different treatments.
Table 3.1 Magnitude effect of Garlic Extract as an Insecticide in two different treatments.
Performance
Mean difference
Cohen’s D
Effect size
Treatment 1
1.26
0.98
1.20
vs.
Treatment 2
The table 3 shows the magnitude effect of Garlic Extract as an Insecticide in terms of
killing and repelling insects.
Table 4. The overall performance of Garlic Extract as an Insecticide in terms of killing
and repelling insects in two different treatments.
Performance
SD
Mean
Qualitative
Description
Garlic extract
0.28
3.30
Excellent
Insecticide
Table 4 showed the overall performance of Garlic Extract insecticide in terms of
killing and repelling insects in two different treatments. The performance obtained the
description of “Excellent” with the mean of 3.3.
It is interpreted that the Garlic Extract Insecticide is in excellent in terms of killing
and repelling insects.
According to González-Macedo M., Cabirol N., and Rojas-Oropeza M. (2021), in the
second experiment, nettle and garlic both caused 50% adult mortality. With a 4% infection
rate, nettle extract was more effective in protecting seeds than other substances. The
infestation rate among the seedlings treated to garlic extract was 27.5%. Germination rate for
seeds was 2.38%. 1.12% with garlic extract, 1.19% with nettle extract. the practice practiced
by locals requires adjustments to improve its effectiveness and potential future usage in
Integrated Pest Management.
Therefore, the overall performance of the Garlic Insecticide is excellent.
CHAPTER 5
SUMMARY OF THE FINDINGS, CONCLUSION AND RECOMMENDATION
This chapter presents the summary of findings, conclusion, recommendation that
based on the analysis on the previous chapter.
A. Summary of Findings
Insect pests are one of the problem of vegetable farmers. The researchers decided to
make this study, a study about making an alternative insecticide using garlic extract.
In making the insecticide, the researchers used garlic which is available in our
surrounding and affordable to buy in the market. Therefore, the Garlic Extract is not costly.
In addition, Garlic Insecticide is important to our farmers to repel insects.
Based on the result of the study, researchers found out that Garlic Insecticide is
excellent in terms of killing and repelling insects. And based on the gathered data there is no
significant difference as regards to its performance how long it will last on its repellent
property among the two different product.
B. Conclusion
Based on the outcome of this study, the following conclusions are drawn:
Garlic Extract as an Insecticide is an insecticide that is easy to make and an ecofriendly insecticide. Farmers who participated in this study wanted to use this insecticide. It
is easy to make and also an effective insecticide in terms of killing or repelling insects.
Furthermore, Garlic Insecticide is costly insecticide as a result of using cheap
materials and some materials you already have at home.
C. Recommendation
The researchers recommend the use of garlic extract as an insecticide. After analyzing
the data gathered, the following recommendations were advised.
Garlic extract as an insecticide should be use not just in vegetables but also in fruits
and any other plants like flowers. Some other plants and fruits also need an insecticide to get
rid of those insects and worms that is eating their leaves.
APPENDICES
DOCUMENTATION