Mosquito repellent activity of piper guineense and xylopia aethiopica fruits oils on aedes aegypti

Author(s):  
FB Adewoyin ◽  
AB Odaibo ◽  
CO Adewunmi
2020 ◽  
Vol 981 ◽  
pp. 253-257
Author(s):  
Hazrulrizawati Abd Hamid ◽  
Nishantini Silvarajoo ◽  
Nurulhusna Ab. Hamid

The mosquito Aedes aegypti is an epidemic vector of several diseases such as dengue fever and yellow fever. Several pesticides are used to control the mosquito population. Because of their frequent use, some mosquitoes have developed resistance. In the present study, we evaluated the synergistic mosquito-repellent activity of essential oils from Pelargonium radula, Syzgium aromaticum and Citrus aurantifolia against Aedes aegypti by using Y-tube olfactometer. The oils was subsequently analyzed by using GC–MS. These results clearly reveal that the essential oil of C. aurantifolia served as the most potent repellent agent against Aedes aegypti . The results indicate that three constituents; limonene (19.58%) followed by β–pinene (17.12%), geraniol (13.23%) which comprise a large proportion of the C. aurantifolia are likely responsible for the observed repellent activity.


2016 ◽  
Vol 11 (11) ◽  
pp. 1934578X1601101 ◽  
Author(s):  
Eugene K. Blythe ◽  
Nurhayat Tabanca ◽  
Betul Demirci ◽  
Maia Tsikolia ◽  
Jeffrey R. Bloomquist ◽  
...  

The essential oil (EO) of Lantana montevidensis (Spreng.) Briq. (L. sellowiana Link & Otto) was investigated for its chemical composition and mosquito repellent activity. The essential oil obtained by hydrodistillation of aerial plant parts was analyzed by GC-FID and GC-MS. The major constituents were β-elemene (22.0%), β-caryophyllene (20.1%), and germacrene D (9.4%). Sesquiterpene hydrocarbons were present in considerable quantities (78.9%) in the L. montevidensis EO, followed by oxygenated sesquiterpenes (8.9%), monoterpene hydrocarbons (7.7%), oxygenated monoterpenes (1.9%), diterpenes (1.2%) and other compounds (0.2%). The oil of L. montevidensis was repellent with a minimum effective dosage (MED) of 0.021 ± 0.013 mg/cm2 as compared with that of the positive control N,N-diethyl-3-methylbenzamide (DEET) with a MED of 0.006 ± 0.001 mg/cm2) against Aedes aegypti L. The major compound β-elemene was tested individually for its repellency and had a MED value of 0.23 ± 0.14 mg/cm2 (DEET was 0.008 ± 0.001 mg/cm2). This is the first report on the repellent activity of L. montevidensis EO and β-elemene using human-based in vivo assays against Ae. aegypti.


2020 ◽  
Vol 2020 ◽  
pp. 1-5 ◽  
Author(s):  
Willy Tirza Eden ◽  
Dante Alighiri ◽  
Kasmadi Imam Supardi ◽  
Edy Cahyono

This study examines the active component of Cymbopogon winterianus (Java citronella) oil, as a green mosquito repellent, obtained through a steam distillation method. Java citronella oil, which contains citronellol, citronellal, and geraniol, was isolated by batch vacuum fractional distillation, and their effect was tested against the dengue fever (DF) vector, known as Aedes aegypti. Furthermore, air freshener gels were formulated with Java citronella oil, carrageenan, gum, sodium benzoate, ethylene glycol, polysorbate 20, sodium chloride, and distilled water, at varying concentrations. The results show that formula I has the best controlled release evaporation for citronellal, citronellol, and geraniol, as well as the best storage time of 16.82 days and 12.77 days for geraniol and citronellol, respectively. The most significant specific gravity (0.0136) was recorded in formula V, while gel formula I exhibited the highest level of instability at 35°C, with a syneresis value of 77.11% in t=72 h and pH 5.33. In addition, formula IV at 5°C demonstrated the highest syneresis (75.34%) in t=72 h, with pH 7.04, while a peak viscosity of 100,958 cP was recorded in formula IV. The repellent activity of each active component was measured based on the period of protection conferred against the bites of Aedes aegypti within one hour, and the results showed geraniol and citronellol, with respective activity of 78.00%±4.83 and 77.34%±3.57, as the most effective.


2015 ◽  
Vol 114 (3) ◽  
pp. 1139-1144 ◽  
Author(s):  
Govindaraju Ramkumar ◽  
Sengodan Karthi ◽  
Ranganathan Muthusamy ◽  
Devarajan Natarajan ◽  
Muthugounder Subramanian Shivakumar

Author(s):  
Balasubramani Sundararajan ◽  
Gnanasekar Sathishkumar ◽  
Prabu kumar Seetharaman ◽  
Anil Kumar Moola ◽  
Saravanamoorthy Mutharasanallur Duraisamy ◽  
...  

2010 ◽  
Vol 41 (No. 1) ◽  
pp. 14-20 ◽  
Author(s):  
M. Oparaeke A ◽  
C. Dike M ◽  
I. Amatobi C

The insecticidal efficacy of aqueous extracts of five Nigerian spices (Piper guineense Schum and Thonn., Aframomum melegueta (Roscoe), Xylopia aethiopica (Dunal) A. Rich., Zingiber officinale L. and Capsicum annuum L.) was tested in a field study for the control of two important post-flowering insect pests, Maruca vitrata Fab. (Lepidoptera: Pyralidae) and Clavigralla tomentosicollis Stal. (Hemiptera: Coreidae) of cowpea. The extracts were applied at 10% (w/v) and sprayed every week for 4 weeks. P. guineense, followed by A. melegueta, significantly reduced (P < 0.01) abundance of the pests and decreased the damage to cowpea pods. Grain yields were significantly higher in plots treated with P. guineense and A. melegueta extracts compared to plots treated with other extracts. This technology is cheap, safe, environmentally friendly and easy to adopt by limited resource farmers in third world countries.


PLoS ONE ◽  
2019 ◽  
Vol 14 (11) ◽  
pp. e0224810 ◽  
Author(s):  
Kaiming Tan ◽  
Gabriel B. Faierstein ◽  
Pingxi Xu ◽  
Rosângela M. R. Barbosa ◽  
Garrison K. Buss ◽  
...  

PLoS ONE ◽  
2015 ◽  
Vol 10 (2) ◽  
pp. e0116765 ◽  
Author(s):  
Raimundo Wagner Souza Aguiar ◽  
Suetonio Fernandes dos Santos ◽  
Fabricio da Silva Morgado ◽  
Sergio Donizeti Ascencio ◽  
Magnólia de Mendonça Lopes ◽  
...  

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