Hyptis suaveolens Extract Exhibits Larvicidal Activity Against Anopheles gambiae Larvae
Journal Title: Tropical Journal of Natural Product Research - Year 2018, Vol 2, Issue 5
Abstract
Received 28 January 2018 Revised 08 May 2018 Accepted 08 May 2018 Published online 10 May 2018 Hyptis suaveolens (Lamiaceae) is traditionally used to repel insects. The aim of this study was to determine the larvicidal activity of dichloromethane aerial part extract of H. suaveolens against 4th instar Anopheles gambiae (Diptera: Culicidae) larvae by establishing dose response of the extracts, determining the lethal concentrations (LC50 and LC90) of the extracts and the efficacy of the plant as a mosquito larvicide following the World Health Organization guidelines for laboratory testing of mosquito larvicides. Two samples of the aerial parts were collected and used for the test; sample Z1 was collected in the morning and sample Z2 in the afternoon. Concentrations ranging from 10 - 100 mg/mL of the extract were used. The results showed that there is a very high significant difference between the two samples in relation to the concentrations (df = 4, P < 0.0001). The larvae were resistant at 24th hour and at 48th hour but became susceptible to the extracts at 72nd hour with 99% and 97% mortality rates with both samples. There was significant difference in mortality rates between the two samples (P < 0.05). LC50 at 72nd hour for Z1 and Z2 was 3.51 mg/mL. LC90 at 72nd hour for Z1 was 1.52 mg/mL and 33.47 mg/mL for Z2. The result of this study indicates that H. suaveolens possesses larvicidal properties and supports its traditional application as a repellant/insecticide. Thus, the plant extract could be applied to mosquito breeding sites as a measure to control malaria vector, particularly A. gambiae.
Authors and Affiliations
Jeremiah I. Abok, Akwashiki Ombugadu, Gladys A. Angbalaga
Keywords
Related Articles
- EP ID EP490518
- DOI 10.26538/tjnpr/v2i5.8
- Views 78
- Downloads 0
Comparative Study of the Yield of Reducing Sugar from Hydrolysis of Ximenia caffra Seed Coat and Phoenix dactylifera Stone Using Bioalkali Extracted from Plantain Peel
Lignocelluloses comprising cellulose, hemicelluloses, lignin among others can be pretreated with cost effective method to yield fermentable sugar, using waste agricultural residues as pretreatment chemical and substrates...
In vitro Cytotoxic Activity of Ethyl Acetate Fraction of Hibiscus vitifolius Flowers Against HeLa Cell Line
Received 18 December 2017 Revised 04 February 2018 Accepted 24 February 2018 Published online 07 March 2018 Hibiscus vitifolius Linn.(syn. Fioria vitifolia (L.) Mattei), is a plant native of India and many other tropica...
Aloe vera Prevents Radiation-Induced Dermatitis among the Black Population
Received 15 August 2018 Revised 15 September 2018 Accepted 20 September 2018 Published online 21 September 2018 Radiation-induced dermatitis is a major complication often encountered following radiotherapy, despite new...
Characterization and Evaluation of the Suspending Potentials of Corchorus olitorius Mucilage in Pharmaceutical Suspensions
The study was aimed at extraction, characterization and evaluation of suspending potentials of Corchorus olitorius mucilage (COM) in comparison with acacia BP (ACG) in pharmaceutical suspensions. Corchorus olitorius muci...
Antidiabetic Potentials of Aqueous Extracts of Acacia nilotica (Fabaceae), Anisopus manni (Asclepiadaceae) and a Recipe Comprising the Two Plants in Experimental Rats
Received 11 April 2018 Revised 02 May 2018 Accepted 06 May 2018 Published online 10 May 2018 The seeds of Acacia nilotica (Leguninosae), and leaves of Anisopus manni (Asdepiadaceae) are prescribed traditionally as remed...