Molluscicidal Effect of Dalandan and Dayap Fruit Extract on Golden Apple Snails

Topics: Citrus, Orange, Rutaceae Pages: 22 (6238 words) Published: February 16, 2013
Chapter I
This chapter contains subtopics that talks about the problem in this research such as background of the study, conceptual framework, statement of the problem, null hypothesis, significance of the study, scope and delimitations of the study and definition of terms.

Background of the Study
Nowadays, the demands for every man’s needs are drastically increasing. Consumption of our basic needs is at its peak because of our increasing population. There are many industries now that require twice the effort of labor than before, and one of which is in the agricultural industry. We cannot deny the fact that agricultural exports and imports all over the world are essential to maintain natural equilibrium and satisfy the needs of society which is why one of the main sources of livelihood in Philippines is farming. Many Filipino farmers rely on the sales that the industry offers them and the presence of such pests like rats, slugs or snails affects their crops/vegetation greatly thus, it is important to implement efficient and economical measures in protecting crops continuously. The golden apple snails (Pomacea canaliculata) are presently considered as a rice pest of national importance. The illegal introduction of the golden apple snails (Pomacea canaliculata) took place in the 1980s through the aquarium trade. It was initially introduced by the private sector as an aquaculture species, particularly as a cheap source of protein. Later, it found its way to waterways and rice fields. In 1995, the reported damage of golden apple snails (Pomacea canaliculata) in rice farming was estimated in more than 800,000 hectares all over the country. Estimated rice yield loss from golden apple snail infestation from 1985 to 1991 in the Philippines increased along with expanding infestation. Instead of becoming a boom to food production it became a bane in rice farming. Since then, researches on varied subjects, particularly on its control in rice farming, have been investigated.

With these problems, the researcher is motivated to conduct the study to determine the molluscicidal effect of dalandan (Citrus aurantium) and dayap (Citrus aurantifolia) fruit extract on golden apple snails (Pomacea canaliculata). The researcher believes that this can be of help to the increasing demands the agricultural industry faces. The researcher will conduct this study to know the constituents present in the independent variables and assess its effectiveness in eliminating golden apple snails (Pomacea canaliculata).

Conceptual Framework
The researcher will focus on determining the molluscicidal effect of dalandan (Citrus aurantium) and dayap (Citrus aurantifolia) fruit extract, in the case of this research, on golden apple snails (Pomacea canalicuta). In this way, the researcher can provide new alternative products to use that are cheaper but still efficient, promoting usage of alternative medicines from sources that can be easily found, and helping those who will benefit economically.

Input Process Output

(Citrus aurantium) and
(Citrus aurantifolia)


The Molluscicidal Property of Dalandan (Citrus aurantium) and Dayap (Citrus aurantifolia) fruit extract on Golden apple snails (Pomacea canaliculata)

Figure 1.1 Conceptual Paradigm

Statement of the Problem
This study is to be conducted to determine the effects of dalandan (Citrus aurantium) and dayap (Citrus aurantifolia) fruit extract on golden apple snails (Pomacea canaliculata) as a molluscicide:

Specifically, the study aims to answer the following sub-problems such as: 1. What are the constituents of dalandan (Citrus aurantium) and dayap (Citrus aurantifolia) fruit extract? 2. What is the level of effectiveness of dalandan (Citrus aurantium) and dayap (Citrus aurantifolia) fruit extract on golden apple snails (Pomacea canaliculata) at different concentrations?...
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