LAKASABrowsing by Author "Halog, Evangeline A."

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Repellant properties of essential oil and plant distillates of selected plants to Aedes albopictus
(Don Mariano Marcos Memorial State University - South La Union Campus, 2017-05) Halog, Evangeline A.; Catbagan, Shela C.; De Vera, Krisbel A.; Ruizan, Bernadette O.
Control and protection from mosquito bites are important measures against diseases like dengue and malaria. This study used the skin test wherein the skin was smeared with 0.5 mL of the different essential oils, plant distillates and distilled water (control) and was exposed for 3 minutes against 30female blood-starved Aedes albopictus The number of mosquitoes that landed but had not bitten the skin and the number of mosquitoes that had actually bitten were determined. The repellent activity of the different treatments of essential oils and plant distillates from the selected plant species were computed and compared Responses varied according to the plant species of essential oil and plant distillate extracts. Repellency of Cananga odorata (ylang ylang) flower gave the highest mean of 100%, Cocos nucifera (coconut) essential oils (83%) and both were comparable to Cymbopogon citratus (lemon grass) (73%) and Plumeria rubra (kalachuchi) (69%) plant distillates. Relatively the lowest mean (-99%) was observed in Tithonia diversifolia (wild sujlower) extract