Toxicity and repellent effect of essential oils and a major component against Lipaphis erysimi

2017 ◽  
Vol 6 (1) ◽  
pp. 15-23 ◽  
Author(s):  
Vinod Kumar ◽  
◽  
Chandra Shekhar Mathela ◽  
Keyword(s):  
Essential Oils ◽  
Lipaphis Erysimi ◽  
Repellent Effect

BIOPESTICIDE POTENTIAL OF (7R)-TRANS, TRANS-NEPETALACTONE AND CIS-LACHNOPHYLLUM ESTER IN CONTROL OF MUSTARD APHID, LIPAPHIS ERYSIMI (KALT.)

2015 ◽  
Vol 77 (2) ◽  
Author(s):  
Vinod Kumar ◽  
Chandra Shekhar Mathela ◽  
Geeta Tewari ◽  
Ajay Kumar Pandey
Keyword(s):  
Essential Oils ◽  
Insecticidal Activity ◽  
2D Nmr ◽  
Positive Control ◽  
Lipaphis Erysimi ◽  
Acetylenic Compound ◽  
Mustard Aphid ◽  
Synthetic Pesticide ◽  
Natural Pesticides ◽  
Erigeron Annuus

(7R)-trans, trans-nepetalactone; a monoterpene iridoid (1) and acetylenic compound named cis-lachnophyllum ester (2) were isolated from the essential oils of Nepeta elliptica and Erigeron annuus, respectively and characterized using a combination of their spectral data  (1D-and 2D-NMR, MS, IR). Compound 1 and 2 were tested for biopesticide activity against mustard aphid, Lipaphis erysimi (Kalt.). Compound 1 exhibited high insecticidal activity towards L. erysimi with LC50 values of 2.18 and 2.73 mg/mL; LT50 values of 15.24 and 17.18 h. Compound 2 also displayed significant insecticidal activity having LC50 values of 0.85 and 4.70 mg/mL; LT50 values of 13.25 and 26.2 h. The activity of compounds 1 and 2 were comparable with synthetic pesticide, monocrotophos used as positive control and thus has potential as natural pesticides for use in economically important crops.

scholarly journals Evaluation of the Activities of Five Essential Oils against the Stored Maize Weevil

2008 ◽  
Vol 3 (7) ◽  
pp. 1934578X0800300 ◽  
Author(s):  
Oluwakemi O. Odeyemi ◽  
Patrick Masika ◽  
Anthony J. Afolayan
Keyword(s):  
Essential Oils ◽  
Repellent Effect ◽  
Maize Weevil ◽  
Class V ◽  
Tagetes Minuta ◽  
Insect Mortality ◽  
Rosmarinus Officinalis L ◽  
Dose Dependent ◽  
Contact Bioassay ◽  
Weak Contact

The contact, repellent and fumigation effects of essential oils from Tagetes minuta L., Mentha longifolia L., Rosmarinus officinalis L., Helichrysum odoratissimum L. and Pelargonium graveolens L. were investigated against maize weevil, S. zeamais (Motschulsky) (Colepotera: Curculionidae). The effects of the oils were dose-dependent with gradual increases in insect mortality as the oil concentrations increased. For the contact bioassay, the oils of T. minuta and M. longifolia acted rapidly, causing 100% mortality within two days after treatment at 0.375 and 0.50 μL/g grain concentrations, respectively. The repellent effect of these two oils against S. zeamais was also well pronounced. A Percentage Repellency (PR) value of more than 90% was obtained for the two oils, which puts them in the highest repellency class V. The level of repellency caused by the essential oils of R. officinalis, H. odoratissimum and P. graveolens were 51.1%, 49.4% and 51.7%, respectively. However, most of the oils demonstrated very low fumigation activity against the weevil. For the fumigation bioassay, all the oil concentrations tested did not achieve insect mortality more than 12.5%, even six days after treatment, except for the oil of M. longifolia that exhibited over 70% mortality at 32 μL/L of air. The present study revealed that the essential oils of R. officinalis, H. odoratissimum and P. graveolens had weak contact and fumigation effects against S. zeamais.

scholarly journals Commercially Available Essential Oils Formulas as a Repellents of Common Stored Products Pest Alphitobius diaperinus

2019 ◽  
Author(s):  
Jacek Francikowski ◽  
Bartosz Baran ◽  
Mikołaj Cup ◽  
Jakub Janiec ◽  
Michał Krzyżowski
Keyword(s):  
Locomotor Activity ◽  
Essential Oils ◽  
Pest Management ◽  
Alternative Methods ◽  
Economic Losses ◽  
Stored Products ◽  
Direct Relation ◽  
Repellent Effect ◽  
Alphitobius Diaperinus ◽  
Extended Analysis

The main scope of the presented paper is an assessment of the potential repellent effect of selected essential oils (EOs) against Alphitobius diaperinus, which can cause economic losses in storages and poultry industry. Due to development of pesticide resistance in A. diaperinus populations, as well as an attempt to limit extensive usage of potentially harmful pesticides in food-related industries, there is a strong need for development of alternative methods of management of A. diaperinus infestations. Because of cost-effectiveness, availability and low vertebrate toxicity EOs are promising agents in pest management. In presented paper four of-the-shelf EOs: mint, vanilla, lemon and citronella (and their mixtures) were tested as a potential repellents. Moreover, novel preference assay providing an extended analysis of preference and the locomotor response was used. The most effective EOs were, respectively: citronella and lemon. EOs mixtures were generally more repellent than single EOs, with lemon and vanilla 1:1 mixture acting as the strongest repellent. Few of tested EOs caused significant alterations in locomotor activity, although direct relation wasn’t observed. In conclusion, EOs can be potentially used as a repellent agents in A. diaperinus management. Additionally, data on locomotor activity may lead to better design of pull-push strategies in pest management.

scholarly journals THE COMPONENT COMPOSITION AND FUMIGANTN ACTIVITY OF ESSENTIAL OILS OF SPECIES OF GENUS ARTEMISIA L.

2017 ◽  
pp. 235-240
Author(s):  
Аделя (Adelja) Новруз (Novruz) Алескерова (Aleskerova) ◽  
Намиг (Namig) Нариман (Nariman) Алиев (Aliev) ◽  
Мубариз (Mubariz) Искендер (Iskender) Алиев (Aliev) ◽  
Сираджеддин (Siradzheddin) Велиевич (Velievich) Серкеров (Serkerov) ◽  
Лала (Lala) Ислах (Islah) Рустамова (Rustamova) ◽  
...  
Keyword(s):  
Essential Oils ◽  
Ambient Temperature ◽  
Component Composition ◽  
Repellent Effect ◽  
Maximum Duration ◽  
Repellent Action

The article presents data on the study of fumigantn activity of 12 species (A. fragrans Willd., A szowitziana (Bess.) Grossh., A. spicigera Koch., A. santonica L., A. kobstanica Rzazade, A. scoparia W.et. K., A. scoparioides Grossh., A. annua L., A. maritima L., A. marschalliana Spreng., A. pausiflora Web.ex Stechm., A. tournefortiana Rchb., A. hanseniana Grossh. genus Artemisia L. It is revealed repellent effects of essential oils for 3–8 hours.Duration of repellent action depends on the major component of essential oils. Maximum duration (8 hours.) was observed in action of essential oils Artemisia fragrans Willd, A.santonica, A szowitziana and A.spicigera. Duration repellent action also depends on the ambient temperature. Essential oils of the studied species are repellents and can be used in the prevention of malaria, Zeke disease and other illnesses. Repellent effect of essential oils is associated with majore various components of essential oils; A.fragrans 1,8-cineole (3,6%) and λ-thujone (28%); A.szowitziana β-thujone, 75% and λ-tuyon (9%); A. spicigera camphor (48%) and 1,8-cineole (46%); A.santonica β-citral (34%) and λ-citral (33%).

scholarly journals Essential Oils from Clausena Species in China: Santalene Sesquiterpenes Resource and Toxicity against Liposcelis bostrychophila

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Shan-Shan Guo ◽  
Yang Wang ◽  
Zhen-Yang Chen ◽  
Zhe Zhang ◽  
Ju-Qin Cao ◽  
...  
Keyword(s):  
Natural Products ◽  
Essential Oils ◽  
Natural Product ◽  
Sublethal Effects ◽  
Contact Toxicity ◽  
Repellent Effect ◽  
Guangxi Province ◽  
Toxic Compounds ◽  
Liposcelis Bostrychophila

To develop natural product resources from the Clausena genus (Rutaceae), the essential oils (EOs) from four Clausena plants (Clausena excavata, C. lansium, C. emarginata, and C. dunniana) were analyzed by GC-MS. Their lethal (contact toxicity) and sublethal effects (repellency) against Liposcelis bostrychophila (LB) adults were also evaluated. Santalene sesquiterpene was the precursor substance of santalol, a valuable perfumery. It was found that plenty of α-santalol (31.7%) and α-santalane (19.5%) contained in C. lansium from Guangxi Province and α-santalene (1.5%) existed in C. emarginata. Contact toxicity of the four EOs was observed, especially C. dunniana (LD50 = 37.26 µg/cm2). Santalol (LD50 = 30.26 µg/cm2) and estragole (LD50 = 30.22 µg/cm2) were the two most toxic compounds. In repellency assays, C. excavate, C. lansium, and C. emarginata exhibited repellent effect at the dose of 63.17 nL/cm2 2 h after exposure (percentage repellencies were 100%, 98%, and 96%, respectively). Four Clausena EOs and santalol had an excellent potential for application in the management of LB. Clausena plants could be further developed to find more resources of natural products.

Repellent effect of Salvia dorisiana, S. longifolia, and S. sclarea (Lamiaceae) essential oils against the mosquito Aedes albopictus Skuse (Diptera: Culicidae)

2012 ◽  
Vol 111 (1) ◽  
pp. 291-299 ◽  
Author(s):  
Barbara Conti ◽  
Giovanni Benelli ◽  
Michele Leonardi ◽  
Fatma U. Afifi ◽  
Claudio Cervelli ◽  
...  
Keyword(s):  
Essential Oils ◽  
Aedes Albopictus ◽  
Repellent Effect

scholarly journals Attractiveness of essential oils of three Cymbopogon species to Tribolium castaneum (herbst) adults

2016 ◽  
Vol 31 (3-4) ◽  
pp. 129-137
Author(s):  
Nikola Djukic ◽  
Andja Radonjic ◽  
Goran Andric ◽  
Petar Kljajic ◽  
Milica Drobac ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Plant Species ◽  
Tribolium Castaneum ◽  
Repellent Effect ◽  
Significant Difference ◽  
Neutral Effect

Behavior bioassays were conducted in the laboratory (23 ? 1?C and 50 ? 5% r.h.) using the olfactometer to determine the effects of essential oils of three plant species in the Cymbopogon genus (Lemongrass), Cymbopogon nervatus, C. proximus and C. schoenanthus, on adults of Tribolium castaneum. The effect of essential oils was compared to a commercial biopesticide based on azadirachtin at three concentrations (0.0001, 0.001 and 0.01%). The results showed that all essential oils and the azadirachtin-based biopesticide had significant (p <0.05) repellent effects on T. castaneum adults at all tested concentrations, except C. proximus essential oil which showed a neutral effect at the lowest concentration. The highest concentrations of the essential oils of C. nervatus and C. proximus had significantly stronger repellent effects (p <0.05) than the lowest concentration. At the concentrations of 0.0001 and 0.001% all tested essential oils and azadirachtin showed a similar repellent effect without statistically significant difference, whereas the oil of C. nervatus had the highest repellent effect on adults of T. castaneum at the 0.01% concentration. Considering all tested variations, the essential oils of plants of the genus Cymbopogon showed similar or stronger repellent effects on T. castaneum adults than the biopesticide based on azadirachtin.

scholarly journals Lavender, Eucalyptus, and Orange Essential Oils as Repellents Against Ixodes Ricinus Females

2017 ◽  
Vol 48 (2) ◽  
pp. 76-81
Author(s):  
M. Kulma ◽  
T. Bubová ◽  
O. Kopecký ◽  
F. Rettich
Keyword(s):  
Essential Oils ◽  
Ixodes Ricinus ◽  
The Other ◽  
Repellent Effect ◽  
Environment Friendly ◽  
Orange Oil ◽  
Outdoor Activities ◽  
Disease Vector ◽  
Comparison Sample ◽  
Other Hand

Abstract This study evaluated the repellent effect of three essential oils against females of Ixodes ricinus, which is considered to be the main arthropod disease vector in Europe. The essential oils could be regarded as user- and environment-friendly alternatives to synthetic repellents. As a comparison sample, the most widely used synthetic repellent DEET was used. All the tested oils exhibited moderate to high initial repellency of 65-85% 5 min after application. The testing was terminated after 80 min, when lavender and eucalyptus repelled 45% and 15% of ticks, respectively. No effect of orange oil was observed after a 20-min mark. The effect of DEET was found to be high and stable (95-100%) throughout the experiment. This study thus revealed that the investigated oils are not as effective as DEET. On the other hand, especially lavender showed an interesting potential as an alternative repellent for outdoor activities of shorter duration.

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