Natural repellents and some essential oils may be effective in keeping mosquitoes away because they block their sense of smell, making it harder for these insects to land on a human to feed.Research has shown that the topical application of 100% citronella can provide complete protection against three types of mosquito for up to 120 minutes in a laboratory setting.People traveling to areas where mosquitoes carry diseases may wish to use a more effective synthetic repellent than citronella.A 2014 study found that a formula containing 32% lemon eucalyptus oil provided at least 95% protection from mosquitoes for 3 hours.Lemon eucalyptus essential oil is available to buy in natural health stores and online.People can purchase clove essential oil in some health food stores and online.Other research found that topical application of lemongrass essential oil provided 74–95% protection for 2.5 hours against two types of mosquito during a field study.Some field studies in Kenya found that just the potted plant provided nearly 40% protection against a type of mosquito that can carry malaria.The authors also noted that in a laboratory study, basil essential oil provided up to 100% protection for more than 6 hours against yellow fever mosquitoes.In a field study that took place in Guinea-Bissau, burning neem leaves provided 76% protection against mosquitoes for 2 hours.Other research found that heated eucalyptus leaves provided roughly 72% protection against mosquitoes for 2 hours during a field study.In the study, the researchers placed the leaves on a hot plate over a stove to fumigate the area.The results of a 2011 study suggest that catnip essential oil is effective in repelling yellow fever mosquitoes.People can purchase catnip plants from their local garden center and look for the essential oil online.Laboratory studies have shown that topical applications of compounds of thyme essential oil can provide 89.0–97.3% protection against the common house mosquito for up to 82 minutes.As some essential oils are only effective for a short time, it is best to reapply these formulations more regularly, particularly after going in the water or sweating. .
Insect repellents mediate species-specific olfactory behaviours in
This study attempted to address these three major areas of confusion by (1) using a simple behavioural assay to test repellents in three species of mosquitoes; (2) examining only odour-based responses towards a simplified odour-source; and (3) directly examining the olfactory neuronal responses in Anopheles mosquitoes towards these odours.In the close proximity assay, Anopheles mosquitoes were repelled by lemongrass oil and PMD only, while Aedes and Culex mosquitoes were repelled, to varying degrees, by lemongrass oil, PMD, eugenol and DEET.This is consistent with the predicted relatedness between the chemosensory systems among the three species; Anophelinae and Culicinae diverged 145–200 million years ago, while Ae.Previous studies suggested that DEET masks the olfactory responses to eugenol but not to lemongrass oil as monitored by calcium imaging recordings .The behavioural potency of a spatial repellent is likely reflected in the activity of neurons in the mosquito olfactory system.Similarly, calcium imaging of olfactory responses to spatial repellents highlights a subset of neurons that likely play a key role in mediating mosquito repulsion.Lemongrass oil, for example, was a robust spatial repellent and only activated ~ 2–5 neurons in an antennal segment. .
Citronella Oil Benefits, How to Use, Side Effects and Safety
Like many essential oils, citronella oil has certain benefits, and has been used in China and Indonesia for centuries to treat rashes, infections, and other health conditions.While research into citronella and other essential oils continues, there’s some evidence that citronella oil does have certain health benefits.A 2015 study compared the ability of DEET, citronella oil, and fennel oil to repel mosquitoes.Another study assessed the effectiveness of several mosquito repellents, and concluded that citronella candles were of little use as a mosquito repellent.Several studies have found that citronella oil has certain antifungal properties that may help weaken or destroy certain types of fungi that can cause health problems.An earlier study looked at the antibacterial and antifungal activity of ten essential oils and found that citronella oil was effective against all 12 fungi that were tested.This may be of particular importance for people with diabetes, as wounds tend to heal more slowly with this condition.The citronella oil had both an antifungal and anti-inflammatory effect.The researchers suggested that the combination of these two factors led to accelerated wound healing. .
Lemongrass (Cymbopogon Flexuosus Steud.) wats treated textile: A
An experimental study of oil in water nanoemulsion preparation, process optimization and stability based on the required size distribution and accelerated stability was performed with surfactant oil ratio (SOR), stirring time and speed as the variables for nanoemulsion preparation.GCMS and SEM analysis of the treated and washed samples was done to ensure the presence of active ingredient and finish on the fabric.The fabrics showed good mosquito repellency, fragrance retention and antimicrobial efficacy even after 25 washes, though the percentage mortality dropped. .
Lemongrass and Mosquitoes: Does Lemongrass Repel Mosquitoes?
Though it natively thrives in USDA hardiness zones 10 and 11, lemongrass is a fibrous natural mosquito repellant candidate that provides a productive portfolio of additional properties. .
Repellent effects of the essential oils of Cymbopogon citratus and
Repellency experiments were conducted at the Centre for Biotechnology Research and Development (CBRD) of the Kenya Medical Research Institute (KEMRI), Nairobi in the Leishmaniasis laboratory.Collection of plant materials.For the extraction of the essential oil from T. minuta, fresh plant material was sliced and hydro-distilled by using a Clevenger-type apparatus , with slight modifications .Sand fly colony.Sandflies were obtained from a colony of P.
duboscqi Neveu Lemaire that originated from Marigat Division, Baringo district, Rift Valley, and were maintained at the Centre for Biotechnology Research and Development (CBRD) insectaries in Kenya Medical Research Institute, Nairobi.Preparation of oil extracts for repellent tests.Separate experiments using different cages were done in triplicates and hamsters were treated with the above preparations of the essential oils To prevent any cross-over effects between treatments with the different concentrations, each test with a given dose of each oil was applied to one hamster per cage.Separate experiments using different cages were conducted in which hamsters were treated by smearing their legs, tail, and mouth parts with 0.1 ml of the various serial concentrations of 0.125; 0.250; 0.500; 0.750 and 1 mg/ml of T. minuta and C. citratus extracts.Each test cage contained 100 flies, thus for a given dose, 300 flies were used.The bioassay set up was such that flies flew freely in in the tunnel but had to make contact with the removable cardboard and pass through the holes to reach the bait (hamster) (Figs.Sand flies were held in chamber A and had to make contact with the removable cardboard and pass through the perforated partition (P) to reach the bait (hamster) in chamber B.
Repellency was determined by counting the number of sand flies that landed on the hamsters’ legs, tail, and mouth parts for a period of five minutes each at intervals of 30 min Full size image.Following the release of flies in the tunnel, landing counts (the number of sand flies that landed on the hamsters’ legs, tail, and mouth parts that had been smeared with oil preparations) was done for five minutes each at intervals of 30 min between 08:00 and 11:00 h. Mean percent repellency for each concentration was calculated based on the data of the three replicates at the given times of observation.During tests, the bioassay room was maintained at 27 °C and 80–95% RH.Observations were done for three minutes within each half hour and the total number of sandflies biting on the treated and control areas recorded.
Does Lemongrass Repel Mosquitoes? The Truth About Lemongrass
Does lemongrass repel mosquitoes?Citronella Comes From Lemongrass.Lemongrass has citronella oil in it.So basically, the citronella plants that the citronella oil is taken from are all just different types of lemongrass.Lemongrass Can Repel Mosquitoes.How to use Lemongrass to Repel Mosquitoes.You can’t just plant lemongrass somewhere and enjoy a mosquito-free home.You can’t just plant lemongrass somewhere and enjoy a mosquito-free home.You might think that burning lemongrass might put off mosquitoes with its smell.You might think that burning lemongrass might put off mosquitoes with its smell.Combine lemongrass oil with other essential oils.So does lemongrass repel mosquitoes? .
LEMONGRASS: Overview, Uses, Side Effects, Precautions
View abstract.View abstract.View abstract.View abstract.View abstract.View abstract.A. and Agbaje, E.
O. Hypoglycemic and hypolipidemic effects of fresh leaf aqueous extract of Cymbopogon citratus Stapf.View abstract.Blanco, M. M., Costa, C.
A., Freire, A. O., Santos, J. G., Jr., and Costa, M. Neurobehavioral effect of essential oil of Cymbopogon citratus in mice.View abstract.View abstract.Carbajal, D., Casaco, A., Arruzazabala, L., Gonzalez, R., and Tolon, Z. Pharmacological study of Cymbopogon citratus leaves.View abstract.Carlini, E. A., Contar, J.
de DP, Silva-Filho, A. R., Silveira-Filho, N.
G., Frochtengarten, M. L., and Bueno, O.
F. Pharmacology of lemongrass (Cymbopogon citratus Stapf).View abstract.Cheel, J., Theoduloz, C., Rodriguez, J., and Schmeda-Hirschmann, G. Free radical scavengers and antioxidants from Lemongrass (Cymbopogon citratus (DC.).Stapf.).Impact of lemongrass oil, an essential oil, on serum cholesterol.Food Chem Toxicol.J Med Food 2010;13(3):681-690.Lalko, J. and Api, A.
M. Investigation of the dermal sensitization potential of various essential oils in the local lymph node assay.Food Chem Toxicol 2006;44(5):739-746.Lee, H.
J., Jeong, H. S., Kim, D. J., Noh, Y. H., Yuk, D. Y., and Hong, J. T.
Inhibitory effect of citral on NO production by suppression of iNOS expression and NF-kappa B activation in RAW264.7 cells.Santoro, G. F., Cardoso, M.
G., Guimaraes, L. G., Freire, J. M., and Soares, M. J. Anti-proliferative effect of the essential oil of Cymbopogon citratus (DC) Stapf (lemongrass) on intracellular amastigotes, bloodstream trypomastigotes and culture epimastigotes of Trypanosoma cruzi (Protozoa: Kinetoplastida).A., and Viana, G. S.
Comparative anticonvulsant activities of the essential oils (EOs) from Cymbopogon winterianus Jowitt and Cymbopogon citratus (DC) Stapf.Souza Formigoni, M. L., Lodder, H.
M., Gianotti, Filho O., Ferreira, T. M., and Carlini, E. A. Pharmacology of lemongrass (Cymbopogon citratus Stapf).In vivo antimalarial activity of essential oils from Cymbopogon citratus and Ocimum gratissimum on mice infected with Plasmodium berghei.Viana, G.
S., Vale, T. G., Pinho, R. S., and Matos, F. J. Antinociceptive effect of the essential oil from Cymbopogon citratus in mice.Adukwu EC, Bowles M, Edwards-Jones V, Bone H. Antimicrobial activity, cytotoxicity and chemical analysis of lemongrass essential oil (Cymbopogon flexuosus) and pure citral.Lemon grass (Cymbopogon citratus) essential oil as a potent anti-inflammatory and antifungal drugs.Antimicrobial agents from plants: antibacterial activity of plant volatile oils.Anti-proliferative effect and phytochemical analysis of Cymbopogon citratus extract.Effects of lemongrass oil and citral on hepatic drug-metabolizing enzymes, oxidative stress, and acetaminophen toxicity in rats.Effect of lemongrass oil on rheumatoid arthritis.Scientific basis for the therapeutic use of Cymbopogon citratus, stapf (Lemon grass).