Fumigant toxicity of Korean medicinal plant essential oils and components fromAsiasarum sieboldi root againstSitophilus oryzae L.

2008 ◽  
Vol 23 (2) ◽  
pp. 79-83 ◽  
Author(s):  
Junheon Kim ◽  
Il-Kwon Park
Keyword(s):  
Medicinal Plant ◽  
Essential Oils ◽  
Fumigant Toxicity ◽  
Plant Essential Oils

Fumigant Toxicity of Plant Essential Oils to Thrips palmi (Thysanoptera: Thripidae) and Orius strigicollis (Heteroptera: Anthocoridae)

2006 ◽  
Vol 99 (5) ◽  
pp. 1733-1738 ◽  
Author(s):  
Chang-Geun Yi ◽  
Byeoung-Ryeol Choi ◽  
Hyung-Man Park ◽  
Chang-Gyu Park ◽  
Young-Joon Ahn
Keyword(s):  
Essential Oils ◽  
Fumigant Toxicity ◽  
Plant Essential Oils ◽  
Thrips Palmi ◽  
Orius Strigicollis

scholarly journals Fumigant Toxicity of Petroselinum Crispum L. (Apiaceae) Essential Oil on Trialeurodes Vaporariorum (Westwood) (Hemiptera: Aleyrodidae) Adults Under Greenhouse Conditions

2014 ◽  
Vol 54 (3) ◽  
pp. 294-299 ◽  
Author(s):  
Leila Mahmoodi ◽  
Oroj Valizadegan ◽  
Vahid Mahdavi
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Ornamental Plants ◽  
Trialeurodes Vaporariorum ◽  
Plant Viruses ◽  
Petroselinum Crispum ◽  
Fumigant Toxicity ◽  
Plant Oil ◽  
Plant Essential Oils ◽  
Greenhouse Crops

Abstract Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae) is one of the most harmful, world-wide known pests of greenhouse crops and ornamental plants. This insect feeds on plant sap, produces honeydew, and transmits plant viruses, while causing quantitative and qualitative damage to plants. For controlling this pest in greenhouses, plant essential oils are used as an alternative to chemical insecticidal. So in this study, fumigant toxicity of Petroselinum crispum L. (Apiaceae) plant oil on the abovementioned adult pest was investigated. Dry seeds were ground and subjected to hydrodistillation using a modified Clevenger-type apparatus and the resulting oil contained myristicin (42.65%), β-phellandrene (21.83%), p-1,3,8-menthatriene (9.97%), and β-myrcene (4.25%). All bioassay tests were conducted at 27±2°C, 65±5% relative humidity (RH) and at a photoperiod of 16 : 8 h (light : dark). This research was performed in a completely randomised design with six treatments (five different concentrations of essential oils plus the control). Each concentration included three replicates and each replicate consisted of 20 adult pests. The results showed that the aforementioned essential oil showed significant mortality of adults 24 h after exposure. The value LC50 of the mentioned plant oil on T. vaporariorum was 2.41 μl/l air. And mortality percentage showed higher sensitivity of T. vaporariorum against the application of the essential oil. The value LT50 estimated for T. vaporariorum in a concentration of 2.41 μl/l air was 8.17 h. The fumigant toxicity of this essential oil had an ordered relationship with the concentration and time exposure. The results of this research showed that the mentioned plant oil had appropriate insecticidal effects on these greenhouse pests. The findings showed that P. crispum oil had a high impact on the above-mentioned pest, and its use is suggested because of its high potential fumigant toxicity. The oil of P. crispum may be used in integrated pest management programmes in greenhouses.

scholarly journals Biofilm Inhibition and Eradication Properties of Medicinal Plant Essential Oils against Methicillin-Resistant Staphylococcus aureus Clinical Isolates

2020 ◽  
Vol 13 (11) ◽  
pp. 369
Author(s):  
Fethi Ben Abdallah ◽  
Rihab Lagha ◽  
Ahmed Gaber
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Essential Oils ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Clinical Isolates ◽  
Mass Spectrometry Analysis ◽  
Biofilm Inhibition ◽  
Methicillin Resistant ◽  
Plant Essential Oils

Methicillin-resistant Staphylococcus aureus is a major human pathogen that poses a high risk to patients due to the development of biofilm. Biofilms, are complex biological systems difficult to treat by conventional antibiotic therapy, which contributes to >80% of humans infections. In this report, we examined the antibacterial activity of Origanum majorana, Rosmarinus officinalis, and Thymus zygis medicinal plant essential oils against MRSA clinical isolates using disc diffusion and MIC methods. Moreover, biofilm inhibition and eradication activities of oils were evaluated by crystal violet. Gas chromatography–mass spectrometry analysis revealed variations between oils in terms of component numbers in addition to their percentages. Antibacterial activity testing showed a strong effect of these oils against MRSA isolates, and T. zygis had the highest activity succeeded by O. majorana and R. officinalis. Investigated oils demonstrated high biofilm inhibition and eradication actions, with the percentage of inhibition ranging from 10.20 to 95.91%, and the percentage of eradication ranging from 12.65 to 98.01%. O. majorana oil had the highest biofilm inhibition and eradication activities. Accordingly, oils revealed powerful antibacterial and antibiofilm activities against MRSA isolates and could be a good alternative for antibiotics substitution.

scholarly journals Fumigant Toxicity of Plant Essential Oils Against Camptomyia corticalis (Diptera: Cecidomyiidae)

2012 ◽  
Vol 105 (4) ◽  
pp. 1329-1334 ◽  
Author(s):  
Jun-Ran Kim ◽  
Perumalsamy Haribalan ◽  
Bong-Ki Son ◽  
Young-Joon Ahn
Keyword(s):  
Essential Oils ◽  
Fumigant Toxicity ◽  
Plant Essential Oils

Contact and fumigant toxicity of plant essential oils and efficacy of spray formulations containing the oils against B- and Q-biotypes of Bemisia tabaci

2011 ◽  
Vol 67 (9) ◽  
pp. 1093-1099 ◽  
Author(s):  
Soon-Il Kim ◽  
Song-Hwa Chae ◽  
Hee-Sung Youn ◽  
Seong-Hum Yeon ◽  
Young-Joon Ahn
Keyword(s):  
Essential Oils ◽  
Bemisia Tabaci ◽  
Fumigant Toxicity ◽  
Plant Essential Oils
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