scholarly journals Chemical characterization; Antimicrobial and Larvicidal activity of essential oil from Callistemon citrinus (Bottle brush) leaves

2021 ◽  
Author(s):  
D. P. Chachad ◽  
A. Dias ◽  
K. Uniyal ◽  
U. Varma ◽  
P. Jadhav ◽  
...  
Keyword(s):  
Essential Oil ◽  
Microbial Activity ◽  
Larvicidal Activity ◽  
Mosquito Control ◽  
Chemical Characterization ◽  
Global Scale ◽  
Vector Mosquito ◽  
Bacteria And Fungi ◽  
Bottle Brush ◽  
Harmful Effects

AbstractMosquito-borne diseases are prevalent in more than 100 countries across the world. They are the major vectors for transmission of Malaria, dengue, yellow fever, filariasis, schistosomiasis, Japanese encephalitis etc. Many of the formerly employed insecticides in mosquito control have harmful effects on human health and other non-target populations, their non-biodegradable nature, the higher rate of bio-magnification in our ecosystem and increasing insecticide resistance on global scale are raising serious concerns. . Therefore, search for natural, eco-friendly alternatives such as bio-insecticides is imperative. In this study, Larvicidal activity of the essential oil obtained from the leaves of Callistemon citrinus was tested on Dengue vector mosquito Aedes aegypti & Chikungunya vector mosquito Culex sp. Also, the chemical composition of the essential oil was recorded using GC-MS analysis. The anti-microbial activity of the essential oil was checked against a few common bacteria and fungi. Callistemon citrinus comes out to be one of such bio-insecticides with many therapeutic active constituents, showing appreciable anti-microbial activity and 80-100% larvicidal activity.

scholarly journals Larvicidal Enzyme Inhibition and Repellent Activity of Red Mangrove Rhizophora mucronata (Lam.) Leaf Extracts and Their Biomolecules against Three Medically Challenging Arthropod Vectors

Molecules ◽  
2020 ◽  
Vol 25 (17) ◽  
pp. 3844
Author(s):  
Sengodan Karthi ◽  
Karthic Uthirarajan ◽  
Vinothkumar Manohar ◽  
Manigandan Venkatesan ◽  
Kamaraj Chinnaperumal ◽  
...  
Keyword(s):  
Larvicidal Activity ◽  
Mosquito Control ◽  
Chemical Characterization ◽  
Acetone Extract ◽  
Bioactive Molecules ◽  
Repellent Activity ◽  
Rhizophora Mucronata ◽  
Mosquito Vectors ◽  
Leaf Extracts ◽  
Red Mangrove

The larvicidal potential of crude leaf extracts of Rhizophora mucronata, the red mangrove, using diverse solvent extracts of the plant against the early fourth instar larvae of Anopheles stephensi, Culex quinquefasciatus and Aedes aegypti mosquito vectors was analyzed. The acetone extract of R. mucronata showed the greatest efficacy: for Cx. quinquefasciatus (LC50 = 0.13 mg/mL; LC90 = 2.84 mg/mL), An. stephensi (LC50 = 0.34 mg/mL; LC90 = 6.03 mg/mL), and Ae. aegypti (LC50 = 0.11 mg/mL; LC90 = 1.35 mg/mL). The acetone extract was further fractionated into four fractions and tested for its larvicidal activity. Fraction 3 showed stronger larvicidal activity against all the three mosquito larvae. Chemical characterization of the acetone extract displayed the existence of several identifiable compounds like phytol, 3,7,11,15-tetramethyl-2-hexadecen-1-ol, 1-hexyl-2-nitrocyclohexane, eicosanoic acid etc. Enzyme assay displayed that R. mucronata active F3-fractions exert divergent effects on all three mosquitos’ biochemical defensive mechanisms. The plant fractions displayed significant repellent activity against all the three mosquito vectors up to the maximum repellent time of 210 min. Thus, the bioactive molecules in the acetone extract of R. murconata leaves showed significant larvicidal and enzyme inhibitory activity and displayed novel eco-friendly tool for mosquito control.

scholarly journals Chemical characterization and mosquito larvicidal activity of essential oil from leaves of Persea americana Mill (Lauraceae) against Culex quinquefasciatus (Say)

2015 ◽  
Vol 5 (6) ◽  
pp. 463-467 ◽  
Author(s):  
Carlos Granados-Echegoyen ◽  
Rafael Pérez-Pacheco ◽  
Nancy Alonso-Hernández ◽  
Alfonso Vásquez-López ◽  
Luicita Lagunez-Rivera ◽  
...  
Keyword(s):  
Essential Oil ◽  
Larvicidal Activity ◽  
Culex Quinquefasciatus ◽  
Chemical Characterization ◽  
Persea Americana ◽  
Mosquito Larvicidal Activity

scholarly journals Mosquito Larvicidal Activity of the Essential Oils of Erechtites Species Growing Wild in Vietnam

Insects ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 47 ◽  
Author(s):  
Nguyen Hung ◽  
Prabodh Satyal ◽  
Ho Hieu ◽  
Nguyen Chuong ◽  
Do Dai ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Vector Control ◽  
Larvicidal Activity ◽  
Mosquito Control ◽  
Low Cost ◽  
Gas Chromatography Mass Spectrometry ◽  
Mosquito Vector ◽  
Mosquito Larvicidal Activity ◽  
Aerial Parts

Mosquito-borne infections are a constant problem in Vietnam, and mosquito vector control is a primary approach to control these infections. Essential oils represent environmentally friendly alternatives to synthetic pesticides for mosquito control. The essential oils of two weedy species in Vietnam, Erechtites hieraciifolius and E. valerianifolius, have been obtained by hydrodistillation and analyzed by gas chromatography–mass spectrometry. The essential oils have been screened for mosquito larvicidal activity against Aedes albopictus, Ae. aegypti, and Culex quinquefasciatus. The essential oil from the aerial parts of E. hieraciifolius was rich in α-pinene (14.5%), limonene (21.4%), and caryophyllene oxide (15.1%), while E. valerianifolius essential oil was dominated by myrcene (47.8%) and α-pinene (30.2%). Both essential oils showed good larvicidal activity against Ae. albopictus (24-h LC50 10.5 and 5.8 μg/mL, respectively) and Ae. aegypti (24-h LC50 10.6 and 12.5 μg/mL, respectively). The essential oil of E. valerianifolius also showed good activity against Cx. quinquefasciatus larvae (24-h LC50 = 40.7 μg/mL). Thus, Erechtites essential oils may serve as low-cost vector control agents for mosquito-borne infections.

Chemical Composition and Larvicidal Activity of Rosmarinus officinalis Essential Oil Against West Nile Vector Mosquito Culex pipiens (L.)

2020 ◽  
Vol 23 (6) ◽  
pp. 1463-1474
Author(s):  
Fouad Zeghib ◽  
Fouzia Tine-Djebbar ◽  
Assia Zeghib ◽  
Khaldoun Bachari ◽  
Karima Sifi ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Larvicidal Activity ◽  
Culex Pipiens ◽  
Rosmarinus Officinalis ◽  
West Nile ◽  
Vector Mosquito

scholarly journals Evaluation of the Larvicidal Potential of the Essential Oil Pogostemon cablin (Blanco) Benth in the Control of Aedes aegypti

2019 ◽  
Vol 12 (2) ◽  
pp. 53 ◽  
Author(s):  
Lizandra Lima Santos ◽  
Lethicia Barreto Brandão ◽  
Rosany Lopes Martins ◽  
Erica de Menezes Rabelo ◽  
Alex Lobato Rodrigues ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Antioxidant Activity ◽  
Essential Oil ◽  
Aedes Aegypti ◽  
Larvicidal Activity ◽  
Chemical Constituents ◽  
Chemical Characterization ◽  
Artemia Salina ◽  
World Health ◽  
Pogostemon Cablin

The objective of this work was to collect information on the chemical constituents that demonstrate the larvicidal activity against Aedes aegypti, as well as the antioxidant, microbiological, and cytotoxicity potential of the essential oil of Pogostemon cablin leaves. The chemical characterization was performed by gas chromatography coupled to mass spectrometer (GC-MS). The larvicidal activity was performed according to the protocol of the World Health Organization. The antioxidant activity was evaluated through the sequestering capacity of 2,2-diphenyl-1-picryl-hydrazine (DPPH). As for the microbiological evaluation, the microdilution technique was used, according to the protocol of the Clinical and Laboratory Standards Institute. The cytotoxic activity was evaluated against the larvae of Artemia salina. The species P. cablin presented the following compounds: Patchouli alcohol (33.25%), Seyshellene (6.12%), α-bulnesene (4.11%), Pogostol (6.33%), and Norpatchoulenol (5.72%), which was in synergy with the other substances may significantly potentiate the larvicidal action of the species with the LC50 of 28.43 μg·mL−1. There was no antioxidant activity, however, it presented antimicrobial activity against all bacteria tested with Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) of 62.5 μg·mL−1. The species demonstrated significant toxic action with LC50 of 24.25 μg·mL−1. Therefore, the P. cablin species showed significant larvicidal potential, antimicrobial activity, the absence of antioxidant action, and high toxicity.

scholarly journals Larvicidal, adulticidal, and oviposition-deterrent activity of Piper betle L. essential oil to Aedes aegypti

2019 ◽  
Vol 12 (3) ◽  
pp. 367-371 ◽  
Author(s):  
Riesna Martianasari ◽  
Penny Humaidah Hamid
Keyword(s):  
Essential Oil ◽  
Aedes Aegypti ◽  
Dengue Fever ◽  
Larvicidal Activity ◽  
Mosquito Control ◽  
Activity Index ◽  
Piper Betle ◽  
Primary Vector ◽  
Aegypti Population ◽  
Deterrent Activity

Background and Aim: Aedes aegypti is a primary vector of many arthropod-borne diseases. One of the diseases, dengue fever, is an endemic disease in Indonesia causing high mortalities for decades. There are no preventive and specific treatments for dengue so far. Therefore, prevention of this disease largely depends on the mosquito control. Since resistance to chemical insecticides occurred worldwide, the study on alternate and new mosquito insecticides are mandatory. This study aimed to demonstrate the effect of essential oil from P. betle L. in the larval and adult stages, as well as its influence on oviposition activity of A. aegypti mosquito. Materials and Methods: P. betle efficacy was evaluated in various stages of A. aegypti development. For the larvicidal activity, larvae instar III stage was used. Adulticidal assay in this experiment was performed using newly emerged A. aegypti. For oviposition assay, mated A. aegypti was tested for their responses to P. betle-treated and non-treated ovitraps. Results: P. betle L. - adulticide activity was effective with a concentration of 2.5 μl/ml, caused 100% mortality within 15-30 min. Larvicide activity was observed after 1 h, 24 h, and 48 h post-treatment with LC50183, 92.7, and 59.8 ppm and LC90> 637, 525, and 434.7 ppm, respectively. Oviposition activity index was −0.917 in 1000 ppm. In addition, the eggs number of A. aegypti oviposition with 100 ppm of essential oil P. betle L. was 5 times lower than the control. Conclusion: This study demonstrated clearly that essential oil derived from P. betle L. potentially acts as alternate bioinsecticide to control A. aegypti population. The application can be varied or combined in different stages of mosquito development.

scholarly journals Larvicidal activity of essential oil from Vitex negundo and Vitex trifolia on dengue vector mosquito Aedes aegypti

2019 ◽  
Vol 52 ◽  
Author(s):  
Trilokesh Chandrasekaran ◽  
Aishwarya Thyagarajan ◽  
Prabhakaran Ganapathi Santhakumari ◽  
Agiesh Kumar Balakrishna Pillai ◽  
Uma Maheswari Krishnan
Keyword(s):  
Essential Oil ◽  
Aedes Aegypti ◽  
Larvicidal Activity ◽  
Vitex Negundo ◽  
Dengue Vector ◽  
Vector Mosquito
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