п»їInvestigatory Project

In Science IV

Submitted simply by:

Mary Flower L. Perez

IV-St. Matt

Submitted to:

Mrs. Leira B. Tobias

Educator in Science IV

CHAPTER 1: Cacao Leaves as Organic Insect Water-proof

This examine is a fresh research and was done to establish the efficacy of cacao leaves decoction for the treatment of escalation of insects. To get rid of the use of DEET (N, N-diethyl-3- methylbenzamide), a chemical ingredients developed during World War II by U. S i9000. Army; unfortunately, some people provide an allergic reaction to such products. And to convince others to work with natural bug repellents.

INTRODUCTION

Objectives:

To reduce the escalation of the bug in our place.

To promote an organic way of minimizing the escalation of insects. To use all-natural insect repellant instead of chemical substance insect repellants like aerosols. To be able to substitute chemical bug repellants which usually threat man health by natural insect repellants. To determine the result of the Cacao leaves extract on pests like mosquitos. To be ready of producing a highly effective insect repellent out of Escandalo leaves. In order to make use of all-natural resources seen in our region to solve common problems brought on by insects like malaria and dengue. To spot adverse reaction of the decoction during the course of treatment.

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PHASE 2: Report on Related Literary works

Foreign

" Repellent and insecticide effects of the primary oil of Kaempferia galanga rhizomes to Liposcelis bostrychophila (Psocoptera: Liposcelidae). ” By simply: Zhang D, Tang T, Hu W, Wang E, Zhou Y, Li They would, Huang C, Chun L, Zhang Z.

The aim of this research was going to determine chemical composition andВ repellentВ and insecticidal activities of the petrol of Kaempferia galanga D. rhizomes against the booklouse, Liposcelis bostrychophila Badonnel, and to isolate insecticidal orВ repellentВ constituents from the olive oil. The essential essential oil was attained by hydrodistillation and reviewed by gas chromatography-mass spectrometry. Twenty-eight pieces of the essential oil were determined. The major chemical substances in the petrol were ethyl-rho-methoxycinnamate (38. 6%), ethyl cinnamate (23. 2%), 1, 8-cineole (11. 5%), trans-cinnamaldehyde (5. 3%), and borneol (5. 2%). Depending on bioactivity-guided fractionation, four ingredients were remote from the petrol and recognized as 1, 8-cineole, ethyl cinnamate, ethyl rho-methoxycinnamate, and trans-cinnamaldehyde. The essential olive oil exhibited get in touch with toxicity up against the booklouse with an LC50 value of 68. 6th microg/cm2. Ethyl cinnamate (LC50 = 21 years old. 4 microg/cm2) exhibited stronger contact degree of toxicity than ethyl rho-methoxycinnamate and trans-cinnamaldehyde (LC50 = forty-four. 6 and 43. some microg/cm2, respectively) while 1, 8-cineole demonstrated weak serious toxicity. The primary oil as well possessed venom toxicity against the booklouse having a LC50 worth of 1. five mg/liter air. 1, 8-Cineole and trans-cinnamaldehyde (LC50 = 1 . you and 1 ) 3 mg/liter, respectively) possessed stronger fumigant toxicity up against the booklouse than ethyl cinnamate and ethyl rho-methoxycinnamate (LC50 = 12. 2 and 10. two mg/liter air flow, respectively). trans-Cinnamaldehyde was stronglyВ repellentВ to booklice, while ethyl cinnamate and ethyl rho-methoxycinnamate were weaklyВ repellentВ and one particular, 8-cineole would not repel booklice. The benefits indicate the fact that essential oil as well as its constituent substances have prospect of development intoВ naturalВ insecticides or fumigants andВ repellentsВ for power over insects in stored grains.

" Insecticide, fumigant, and repellent activities of lovely wormwood oil and its specific components against red imported fire ish workers (hymenoptera: formicidae). ” By: Zhang N, Tang L, Hu W, Wang K, Zhou Y, Li H, Huang C, Chun J, Zhang Z.

Altogether, 29 ingredients from lovely wormwood (Artemisia annua L. ) petrol were discovered using gas...