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Please use this identifier to cite or link to this item: http://dspace.cas.upm.edu.ph:8080/xmlui/handle/123456789/2202
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dc.contributor.authorGarcia, Diana M.-
dc.contributor.authorSidamon, Annalyn P.-
dc.date.accessioned2023-05-17T05:04:04Z-
dc.date.available2023-05-17T05:04:04Z-
dc.date.issued2000-04-
dc.identifier.urihttp://dspace.cas.upm.edu.ph:8080/xmlui/handle/123456789/2202-
dc.description.abstractBotanical plant extracts used as larvicides have shown good knockdown qualities and have at the same time eliminated the resistance factor present in chemical insecticides. In this biological activity-guided study, leaves of Poinsettia (Euphorbia pulcherrima) were assayed for their larvicidal activity against Culex quinquefasciatus. A 20% concentration dosage was formulated using distilled water as solvent. A static assay test for the larvicidal efficacy of Poinsettia leaf extract was conducted with late-third and early-fourth instar larvae. Exposure of the Culex larvae to the aqueous solution exhibited 100% mortality within 24 hours. Physical deformities observed on the tested larvae were attributed to extract toxicity.en_US
dc.subjectBotanical extracts-
dc.subjectLarvicides-
dc.subjectCulex quinquefasciatus-
dc.subjectPoinsettia (Euphorbia pulcherrima)-
dc.titleThe larvicidal efficacy of Poinsettia leaf extract on Culex quinquefasciatusen_US
dc.typeThesisen_US
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