scholarly journals Ovicidal and Repellent Activities of Several Plant Essential Oils Against Periplaneta americana L. and Enhanced Activities from their Combined Formulation

2021 ◽  
Author(s):  
Mayura Soonwera ◽  
Tanapoom Moungthipmalai ◽  
Wacharaporn Takawirapat ◽  
Sirawut Sittichok
Keyword(s):  
Soybean Oil ◽  
Essential Oils ◽  
Ethyl Alcohol ◽  
Eucalyptus Globulus ◽  
Periplaneta Americana ◽  
Repellent Activity ◽  
Inhibition Rate ◽  
Cymbopogon Citratus ◽  
Plant Essential Oils ◽  
Illicium Verum

Abstract Natural ovicidal and repellent agents against Periplaneta americana are in urgent need, and plant essential oils (EOs) can assume this role quite readily. In this study, ovicidal and repellent activities against Periplaneta americana of EOs from Cymbopogon citratus, Cinnamomum verum, Eucalyptus globulus, Illicium verum, and Zanthoxylum limonella in soybean oil and in ethyl alcohol were determined by topical and dual-choice assays, as well as 10% cypermethrin and a combined formulation of 5% C. verum EO + 5% I. verum EO. Cypermethrin at 10% provided the highest toxicity (100% inhibition rate) against the eggs, but only slightly higher than that (99.3%) provided by the combined EO formulation, while the highest repellent activity against the adults was provided by the combined formulation (89.5% repelled cockroaches at 48 h after treatment). In addition, all EO formulations in soybean oil provided higher ovicidal and repellent activities than in ethyl alcohol. To conclude, the combined EO formulation in soybean oil can replace cypermethrin because their efficacy was nearly equivalent, but the combination should be much safer to use.

COMPARING THE REPELLENCY OF DIFFERENT PLANT ESSENTIAL OILS AGAINST MOSQUITO CULEX PIPIENS

INDIAN DRUGS ◽  
2017 ◽  
Vol 54 (02) ◽  
pp. 29-35
Author(s):  
M. Torki ◽  
◽  
A. Akbari ◽  
F. Motevali Haghi
Keyword(s):  
Essential Oils ◽  
Eucalyptus Globulus ◽  
Culex Pipiens ◽  
Rosa Damascena ◽  
Vector Borne Diseases ◽  
Plant Essential Oils ◽  
Mentha Longifolia ◽  
L 96 ◽  
Vector Borne ◽  
Lavandula Officinalis

Due to diminishing man-vector contact, repellency is an important way of preventing vector borne diseases. Mosquitoes control and peoples protection from biting by the mosquitoes are the most significant ways to prevent the diseases that have been transmitted by the mosquitoes. Usage of repellants, especially herbal smokes, is one of the proper methods to protect individuals. In this study, four herbs include Rosa damascena Mill, Lavandula officinalis, Eucalyptus globulus and Mentha longifolia L were examined. After preparing the essential oil of each herb, with a certain concentration, a cotton fabric was stained by using the herbs and at animal test stage, their repelling property against Culex pipiens mosquito was evaluated. Finally, the repelling effect of the fabric stained with the essential oils with the chemical combination repelling N, N-diethyl 3-methyl benzamid, as (DEET) was compared as well. The results of repelling effect of the essential oils of Rosa damascena Mill, Mentha longifolia L, Lavandula officinalis and Eucalyptus globulus was 83%, 96%, 81% and 85%, respectively. Mentha longifolia L (96%) had the highest repelling effect; however Lavandula officinalis (81%) has the least repelling effect respectively. Thus, this work showed that some herbal essential oils can be used as natural repellent materials to improve public health.

scholarly journals Zingiber officinalis and Eucalyptus globulus, Potent Lethal/Repellent Agents against Rhipicephalus bursa, Probable Carrier for Zoonosis

2019 ◽  
Author(s):  
Samin Madreseh-Ghahfarokhi ◽  
Amir Dehghani-Samani ◽  
Yaser Pirali ◽  
Azam Dehghani-Samani
Keyword(s):  
Natural Products ◽  
Essential Oils ◽  
Eucalyptus Globulus ◽  
Repellent Activity ◽  
Hard Tick ◽  
Plant Materials ◽  
Fresh Plant ◽  
Rhipicephalus Bursa ◽  
First Time

Background: Rhipicephalus bursa is a hard tick with importance in transmission of tick-borne diseases and zoono­sis. Natural products are excellent alternative to pesticides. In this study for the first time, lethal and repellent activity of Zingiber officinalis and Eucalyptus globulus against Rh. bursa were studied. Methods: In July till September of 2017, essential oils were extracted in Shahrekord University, Iran from fresh plant materials and engorged mature ticks were collected from infested sheep herd located in Saman, Iran. Ticks were challenged by different concentrations of essential oils including 300, 500 and 800µl/ml and 1 (pure) singly and/or in combination. Percentages of killed and repellent ticks as efficacy of acaricidal and repellent activity of es­sential oils against Rh. bursa were calculated and analyzed statistically. Results: Efficacy of eucalyptus essential oils was more in whole concentrations and its highest performance was observed in concentration 1 (pure). Efficacies of ginger and combined essential oils were different for each concen­tration but their highest efficacies were observed in concentration 1 (pure), too. Conclusion: This study showed considerable values of acaricidal and repellent activity against Rh. bursa for both essential oils singly and in combination, so they can be considered as potent lethal/repellent agents for control of ticks, but more studies need for this purpose, study on lethal/repellent activity of these essential oils and/or other plants against other important arthropods can be considered as subjects for next experiments.

Repellent Activity of Apiaceae Plant Essential Oils and their Constituents Against Adult German Cockroaches

2016 ◽  
Vol 110 (2) ◽  
pp. 552-557 ◽  
Author(s):  
Hyo-Rim Lee ◽  
Gil-Hah Kim ◽  
Won-Sil Choi ◽  
Il-Kwon Park
Keyword(s):  
Essential Oils ◽  
Repellent Activity ◽  
Plant Essential Oils

scholarly journals Behavioral and Electrophysiological Effects of Ajowan (Trachyspermum ammi Sprague) (Apiales: Apiaceae) Essential Oil and Its Constituents on Nymphal and Adult Bean Bugs, Riptortus clavatus (Thunberg) (Hemiptera: Alydidae)

Insects ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 104
Author(s):  
Sung-Chan Lee ◽  
Seon-Mi Seo ◽  
Min-Jung Huh ◽  
Jun-Hyeong Kwon ◽  
Il Nam ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Repellent Activity ◽  
Repellent Effect ◽  
Female Adult ◽  
Riptortus Clavatus ◽  
Plant Essential Oils ◽  
Trachyspermum Ammi ◽  
Bean Bug ◽  
Electrophysiological Effects

We investigated the repellent effect of 12 Apiaceae plant essential oils on nymphal and adult (male and female) forms of the bean bug, Riptortus clavatus (Thunberg) (Hemiptera: Alydidae), using a four-arm olfactometer. Among the essential oils tested, ajowan (Trachyspermum ammi Sprague) essential oil showed the strongest repellent activity against the nymphal and adult bean bugs. For female adults, the repellent activity was significantly different between an ajowan oil-treated chamber and an untreated chamber down to a concentration of 14.15 μg/cm2. We also investigated the repellent activity of individual ajowan essential oil constituents. Of the compounds examined, carvacrol and thymol showed the most potent repellent activity against the nymphal and adult bean bugs. Carvacrol and thymol exhibited 73.08% and 70.0% repellent activity for the bean bug nymph at 0.71 and 2.83 μg/cm2, respectively, and 82.6% and 80.7% at 5.66 and 11.32 μg/cm2, respectively, for male adults. Carvacrol and thymol exhibited strong repellent activity against female adult bean bugs down to a concentration of 2.83 μg/cm2. Ajowan essential oil, thymol and carvacrol elicited a negative electroantennogram (EAG) response from adult bean bugs. This could explain the repellent activity of ajowan essential oil and its constituents. Our results indicate that ajowan essential oil and its constituents carvacrol and thymol can be potential candidates as the ‘push’ component in a ‘push-pull’ strategy for bean bug control.

scholarly journals Chemical composition and antibacterial activity of Cymbopogon citratus and Cymbopogon flexuosus essential oils

2018 ◽  
Vol 40 ◽  
pp. 2
Author(s):  
Maria Vanaina Souza Gonçalves ◽  
Luiz Everson da Silva ◽  
Wanderlei Amaral Do Amaral ◽  
Diomar Augusto de Quadros ◽  
Rodrigo Arantes Reis ◽  
...  
Keyword(s):  
Essential Oils ◽  
Antimicrobial Agents ◽  
Plant Secondary Metabolites ◽  
Antimicrobial Properties ◽  
Model Organisms ◽  
Cymbopogon Citratus ◽  
Food Preservatives ◽  
Plant Essential Oils ◽  
Cymbopogon Flexuosus ◽  
Microbiological Control

Plant secondary metabolites have attracted considerable attention from the industry as consumers are increasing their interest for natural products over chemically synthesized reagents to be used as additives in food, cosmetics or pharmaceuticals. Some plant essential oils show significant antimicrobial properties and this could be exploited to produce new food preservatives or novel antimicrobial formulations. Here we describe the extraction, chemical analysis and antimicrobial properties of grass lemon Cymbopogon citratus and Cymbopogon flexuosus essential oils. Essential oils were extracted from dried leaves using hydrodestilation and their composition was established by gas chromatography coupled to mass spectrometry. Agar diffusion assays indicated that C. citratus and C. flexuosus essential oils act as antimicrobial agents against both gram negative and gram positive model organisms.  These data support that lemon grass essential oils can be used as an alternative for microbiological control.

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