scholarly journals Impact of essential oil from plants on migratory activity of Sitophilus granarius and Tenebrio molitor

2019 ◽  
Vol 10 (4) ◽  
pp. 359-371
Author(s):  
V. O. Martynov ◽  
O. Y. Hladkyi ◽  
T. M. Kolombar ◽  
V. V. Brygadyrenko

Measures against pests should be performed in the context of integrated management of agricultural crops and complex control of pests. Therefore, use of ecologically safe approaches is the best option. Essential oils of plants can make an impact on the main metabolic, biochemical, physiological and behavioural functions of insects. We evaluated the effect of 18 essential oils and 18 dried plants on migratory activity of Sitophilus granarius (Linnaeus, 1758) and Tenebrio molitor Linnaeus, 1758 in conditions of laboratory experiment. Notable repellent activity against S. granarius was exhibited by Citrus sinensis and Picea abies. Repellent action against T. molitor was displayed by dried and cut leaves of Origanum vulgare and Eucalyptus globulus, and also essential oils from Juniperus communis, Р. abies, Pterocarpus santalinus, C. sinensis and C. aurantiifolia. Therefore, out of 18 studied essential oils, only two samples had a notable biological effect on migratory activity of S. granarius and five samples – on T. molitor. These data indicate a possibility of using essential oils or their main components as ecologically safe natural repellents against pests of stored wheat and products of its processing.

Author(s):  
B. Baranová

Ефірні олії, як вторинні метаболіти рослин, містять широкий спектр біологічно активних сполук, які можуть впливати на метаболічні, біохімічні, фізіологічні та поведінкові функції комах. Метою даного дослідження було оцінити фумігантну і контактну токсичність ефірних масел деяких видів рослин, що використовуються в кулінарії, порівняти ефективність різної дози та часу експозиції, оцінити різницю між відпрацьованими оліями у відсотках смертності, визначити основні сполуки використовуваних ефірних масел. Біоінсектицидну активність ефірних олій анісу (Pimpinella anisum L.), кмину (Carum carvi L.), фенхеля (Foeniculum vulgare Miller) та материнки (Origanum vulgare L.) досліджували на модельних об’єктах. В якості останніх були обрані імаго довгоносика комірного – Sitophilus granarius L. (Coleoptera: Curculionidae) та личинки хрущака борошняного – Tenebrio molitor L. (Coleoptera: Tenebrionidae). З випробуваних ефірних олій, олія з кмину проявила найвищу біоінсектицидну активність. Модельні організмів по різному реагували на вплив еферних олій. Були уражені лише імаго Sitophilus granarius, натомість личинки Tenebrio molitor не реагували на жодний вид олій, які використовували в тестових випробуваннях. З метою заміщення небезпечних токсичних фумігантів та інсектицидів ефірні олії є можливим інструментом захисту сільськогосподарських культур та продуктів харчування від комах-шкідників, як безпечна альтернатива для людини та довкілля, можуть бути використані в сільському господарстві в системі метоідв інтегрованого захисту від комах-шкідників. Однак, ефективність ефірних олій суттєво залежить від цільових груп організмів, а також способу застосування.


2017 ◽  
Vol 12 (12) ◽  
pp. 1934578X1701201
Author(s):  
Valentina Maggini ◽  
Giovanna Pesavento ◽  
Isabel Maida ◽  
Antonella Lo Nostro ◽  
Carmela Calonico ◽  
...  

Oregano essential oils (EOs) could represent interesting therapeutic strategies to treat multidrug-resistant (MDR) pathogens as Pseudomonas aeruginosa, responsible for respiratory infections in cystic fibrosis (CF) patients. There could be a great variability in EOs composition when extracted from different plant species. The aim of this study was to chemically characterize and to test EOs, extracted from Origanum compactum, Origanum vulgare and Origanum vulgare var. hirtum, for in vitro antimicrobial activity against a panel of twenty MDR P. aeruginosa strains isolated from CF patients. EOs main components were carvacrol (71.8-73.8-47.1%), thymol (1.6-2.3-21.5%), p-cymene (11.6-7.4-10.8%) and γ-terpinene (1.7-3.1-8.4%). In general, the EOs showed inhibitory activity even at low concentration: 0.5% (v/v) OvEO and OhEO were able to inhibit the 80% of P. aeruginosa strains. Furthermore, the three EOs killed at least 75% of the strains at concentrations lower than 1% (v/v). Average MIC and MBC values were not significantly different. Similar levels of OEOs antimicrobial activities might be related to the fact that the main chemical class (i.e. carvacrol/thymol) is represented in quite similar percentages. Hence, the results of the present study shed light on a carvacrol/thymol-rich EO with a well-represented monoterpene hydrocarbons class as promising standardized antimicrobial herbal product.


2021 ◽  
Vol 30 ◽  
pp. 01011
Author(s):  
Monica Mironescu ◽  
Cecilia Georgescu

In this research, essential oils (EOs) were extracted through steaming from aerial parts of three plants: basil (Ocinum basilicum L.), peppermint (Mentha piperita L.) and oregano (Origanum vulgare L.) form Sibiu County, Romania. The GC-MS analysis indicated that eugenol and apiol were the major compounds in the basil EO. Timol, ɣ-terpinene, and p-cymene were the major compounds in the volatile oil extracted from oregano and menthol and methone the main components in the peppermint EO. In the first 48 h of analysis, basil EO inhibition action was the highest against Salmonella anatum (48%), followed by Aspergillus niger (26%), Bacillus cereus (21%) and Saccharomyces cerevisiae (15%); this action was maintained for 120 h for all samples. In the first 48 h, the peppermint EO showed the highest inhibition rate (50%) on B. cereus, followed by A. niger (45%), S. cerevisiae (20%) and no action against Salmonella; this action varied after 72h and 120 h by slightly increasing in case of B. cereus, strongly decreasing in case of A. niger and remaining constant in case of S. cerevisiae. Oregano EO showed a very small antimicrobial action, only on S. anatum (12%) and this action was maintained for 120 h.


2017 ◽  
Vol 108 (6) ◽  
pp. 716-725 ◽  
Author(s):  
L.C. Martínez ◽  
A. Plata-Rueda ◽  
H.C. Colares ◽  
J.M. Campos ◽  
M.H. Dos Santos ◽  
...  

AbstractThe study identified insecticidal effects from the cinnamon and clove essential oils in Tenebrio molitor L. (Coleoptera: Tenebrionidae). The lethal concentrations (LC50 and LC90), lethal time, and repellent effect on larvae, pupae, and adults of T. molitor after exposure to six concentrations of each essential oil and toxic compounds were evaluated. The chemical composition of the cinnamon oil was also determined and primary compounds were eugenol (10.19%), trans-3-caren-2-ol (9.92%), benzyl benzoate (9.68%), caryophyllene (9.05%), eugenyl acetate (7.47%), α-phellandrene (7.18%), and α-pinene (6.92%). In clove essential oil, the primary compounds were eugenol (26.64%), caryophyllene (23.73%), caryophyllene oxide (17.74%), 2-propenoic acid (11.84%), α-humulene (10.48%), γ-cadinene (4.85%), and humulene oxide (4.69%). Cinnamon and clove essential oils were toxic to T. molitor. In toxic chemical compounds, eugenol have stronger contact toxicity in larvae, pupae, and adult than caryophyllene oxide, followed by α-pinene, α-phellandrene, and α-humulene. In general, the two essential oils were toxic and repellent to adult T. molitor. Cinnamon and clove essential oils and their compounds caused higher mortality and repellency on T. molitor and, therefore, have the potential for integrated management programs of this insect.


2021 ◽  
Vol 15 (1) ◽  
pp. 1-8
Author(s):  
Emad Soleimani ◽  
◽  
Hossein Sarmadian ◽  
Mohammad Arjomand Zadegan ◽  
Reza Ghasemikhah ◽  
...  

Background: Hydatidosis is a common disease of both humans and animals, resulting from infection with the larvae of Echinococcus granulosus tapeworm. The aim of this study was to investigate the antiparasitic (protoscolicidal) activities of three essential oils in vitro. Methods: This study was designed to evaluate the biochemical composition and in vitro antiparasitic effects of Zataria multiflora, Origanum vulgare and Mentha pulegium essential oils. Gas chromatography was performed to identify the main components of the herbal oils. To determine the antiparasitic properties of the essential oils, live protoscoleces from hydatid cysts were exposed to three concentrations of the herbal oils and were incubated at 37°C for 5, 10, 15, 20 or 25 minutes. Results: The biochemical analysis of these oils indicated that carvacrol and thymol were the major compounds of the Zataria oil. Further, carvacrol and thymol in Origanum essential oil and pulegone and piperitone in Mentha oil were the major compounds. The quickest and slowest antiparasitic effect was achieved from Zataria and Origanum (10%) or from Zataria (0.6%), respectively. The statistical analysis showed a significant difference between the mortality rate of protoscoleces exposed to 0.6% and 1% concentrations, respectively, of Zataria and Origanum at the predetermined exposure times (P<0.05). The three concentrations of Mentha had the same significant statistical differences (P<0.05). Conclusion: Essential oils, Zataria multiflora, Origanum vulgare and Mentha pulegium had significant protoscolicidal activities that were dependent on the concentration of the oils and the exposure times.


2010 ◽  
Vol 5 (2) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Maria Graça Miguel ◽  
Cláudia Cruz ◽  
Leonor Faleiro ◽  
Mariana T. F. Simões ◽  
Ana Cristina Figueiredo ◽  
...  

The essential oils from Foeniculum vulgare commercial aerial parts and fruits were isolated by hydrodistillation, with different distillation times (30 min, 1 h, 2 h and 3 h), and analyzed by GC and GC-MS. The antioxidant ability was estimated using four distinct methods. Antibacterial activity was determined by the agar diffusion method. Remarkable differences, and worrying from the quality and safety point of view, were detected in the essential oils. trans-Anethole (31-36%), α-pinene (14-20%) and limonene (11-13%) were the main components of the essentials oil isolated from F. vulgare dried aerial parts, whereas methyl chavicol (= estragole) (79-88%) was dominant in the fruit oils. With the DPPH method the plant oils showed better antioxidant activity than the fruits oils. With the TBARS method and at higher concentrations, fennel essential oils showed a pro-oxidant activity. None of the oils showed a hydroxyl radical scavenging capacity >50%, but they showed an ability to inhibit 5-lipoxygenase. The essential oils showed a very low antimicrobial activity. In general, the essential oils isolated during 2 h were as effective, from the biological activity point of view, as those isolated during 3 h.


2011 ◽  
Vol 44 (5) ◽  
pp. 1541-1548 ◽  
Author(s):  
Geíza Alves de Azeredo ◽  
Tânia Lúcia Montenegro Stamford ◽  
Pollyana Campos Nunes ◽  
Nelson Justino Gomes Neto ◽  
Maria Elieidy Gomes de Oliveira ◽  
...  

Author(s):  
Gerardo Jiménez-Penago ◽  
Roberto González-Garduño ◽  
Luciano Martínez-Bolaños ◽  
Ema Maldonado-Siman ◽  
Alvar A. Cruz-Tamayo ◽  
...  

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