scholarly journals Fumigant Compounds from the Essential Oil of ChineseBlumea balsamiferaLeaves against the Maize Weevil (Sitophilus zeamais)

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Sha Sha Chu ◽  
Shu Shan Du ◽  
Zhi Long Liu
Keyword(s):  
Essential Oil ◽  
Silica Gel ◽  
Chromatographic Separation ◽  
Medicinal Herb ◽  
Sitophilus Zeamais ◽  
Fumigant Toxicity ◽  
Caryophyllene Oxide ◽  
Maize Weevil ◽  
Chinese Medicinal Herb ◽  
Main Components

Essential oil of Chinese medicinal herb,Blumea balsamiferaleaves, was found to possess fumigant toxicity against the maize weevils,Sitophilus zeamais. The main components of the essential oil ofB. balsamiferawere 1,8-cineole (20.98%), borneol (11.99%),β-caryophyllene (10.38%), camphor (8.06%), 4-terpineol (6.49%),α-terpineol (5.91%), and caryophyllene oxide (5.35%). Bioactivity-guided chromatographic separation of the essential oil on repeated silica gel columns led to isolate five constituent compounds, namely, 1,8-cineole, borneol, camphor,α-terpineol, and 4-terpineol. 1,8-Cineole, 4-terpineol, andα-terpineol showed pronounced fumigant toxicity againstS. zeamaisadults (LC50= 2.96 mg/L, 4.79 mg/L, and 7.45 mg/L air, resp.) and were more toxic than camphor (LC50= 21.64 mg/L air) and borneol (LC50= 21.67 mg/L air). The crude essential oil also possessed strong fumigant toxicity againstS. zeamaisadults (LC50= 10.71 mg/L air).

scholarly journals Insecticidal Components from the Essential Oil of Chinese Medicinal Herb,Ligusticum chuanxiongHort

2011 ◽  
Vol 8 (1) ◽  
pp. 300-304 ◽  
Author(s):  
Sha Sha Chu ◽  
Guo Hua Jiang ◽  
Zhi Long Liu
Keyword(s):  
Essential Oil ◽  
Silica Gel ◽  
Insecticidal Activity ◽  
Chromatographic Separation ◽  
Medicinal Herb ◽  
Sitophilus Zeamais ◽  
Contact Toxicity ◽  
Chinese Medicinal Herb ◽  
Ligusticum Chuanxiong ◽  
Main Components

Essential oil of Chinese medicinal herb,Ligusticum chuanxiongdried rhizome was found to possess insecticidal activity against maize weevils, Sitophilus zeamais. The main components ofL. chuanxiongessential oil wereZ-3-butylidenephthalide (20.56%),Z-ligustilide (19.61%), 4-terpinenol (8.82%), 4-vinylguaiacol (6.81%) andα-selinene (6.01%). Bioactivity-guided chromatographic separation of the essential oil on repeated silica gel columns led to isolate three compounds namely 3-butylidenephthalide,Z-ligustilide and 4-vinylguaiacol.Z-liqustilide andZ-3-butylidenephthalide showed pronounced toxicity againstS. zeamais(LD50= 10.23 and 15.81 μg/adult respectively) and were more toxic than 4-vinylguaiacol (LD50= 63.75 μg/adult). The crude essential oil also possessed contact toxicity against S. zeamais (LD50= 13.09 μg/adult).

scholarly journals Chemical Composition and Insecticidal Activity of the Essential Oil of Artemisia eriopoda against Maize Weevil, Sitophilus zeamais

2012 ◽  
Vol 7 (2) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Guo Hua Jiang ◽  
Quan Ru Liu ◽  
Sha Sha Chu ◽  
Zhi Long Liu
Keyword(s):  
Essential Oil ◽  
Screening Program ◽  
Sitophilus Zeamais ◽  
Wild Plants ◽  
Contact Toxicity ◽  
Fumigant Toxicity ◽  
Maize Weevil ◽  
Aerial Parts ◽  
Germacrene D ◽  
Main Components

In our screening program for new agrochemicals from local wild plants, Artemisia eriopoda was found to possess insecticidal activities against the maize weevil, Sitophilus zeamais. The essential oil of the aerial parts of A. eriopoda was obtained by hydrodistillation and investigated by GC and GC-MS. The main components of the essential oil are germacrene D (21.6%) and eucalyptol (14.2%). The essential oil possesses fumigant toxicity against S. zeamais adults with a LC50 value of 11.5 mg/L air and also shows contact toxicity against S. zeamais adults with a LD50 value of 24.8 μg/adult, respectively.

scholarly journals Effectiveness of Mexican oregano essential oil from the Dominican Republic (Lippia graveolens) against maize pests (Sitophilus zeamais and Fusarium verticillioides)

Agriscientia ◽  
2016 ◽  
Vol 33 (2) ◽  
pp. 89-97 ◽  
Author(s):  
M.L. Peschiutta ◽  
J.S. Arena ◽  
A. Ramirez Sanchez ◽  
E. Gomez Torres ◽  
R.P. Pizzolitto ◽  
...  
Keyword(s):  
Essential Oil ◽  
Dominican Republic ◽  
Growth Parameters ◽  
Fusarium Verticillioides ◽  
Sitophilus Zeamais ◽  
Ache Inhibitor ◽  
Fumigant Toxicity ◽  
Maize Weevil ◽  
Oregano Essential Oil

The insecticidal and antifungal properties of Mexican oregano (Lippia graveolens) essential oil from the Dominican Republic were investigated under laboratory conditions against two main pests of stored grains: Sitophilus zeamais and Fusarium verticillioides. Although oregano essential oil at 600 ?l/l air did not result in a significant mortality of S. zeamais after 24 hours of exposure by fumigation, this essential oil was a powerful acetylcholinesterase (AChE) inhibitor in vitro. One of the main components of oregano essential oil, p-cymene, presented fumigant toxicity and AChE inhibition activity against the maize weevil. The L. graveolens essential oil antifungal activity against F. verticillioides was evaluated at 50, 100 and 200 ?l/l, and it was found that growth parameters were affected by the presence of oregano essential oil in the media, whereas FB1 production was not inhibited. The results demonstrate that oregano essential oil and p-cymene can be used as alternatives to synthetic pesticides against F. verticillioides and S. zeamais, respectively.

scholarly journals Essential Oils of Three Hypericum Species from Colombia: Chemical Composition, Insecticidal and Repellent Activity Against Sitophilus zeamais Motsch. (Coleoptera: Curculionidae)

2020 ◽  
Vol 15 (2) ◽  
pp. 111-121
Author(s):  
William Ramiro Patiño Bayona ◽  
Erika Plazas ◽  
Jenifer Jhoana Bustos Cortes ◽  
Juliet Angélica Prieto Rodríguez ◽  
Oscar Javier Patiño Ladino
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Sitophilus Zeamais ◽  
Repellent Activity ◽  
Gas Chromatography Mass Spectrometry ◽  
Geranyl Acetate ◽  
Fumigant Toxicity ◽  
Maize Weevil ◽  
Hypericum Species

The maize weevil (Sitophilus zeamais) is one of the main insect responsible of significant losses in stored products, and to keep nutritional value of them to find effective and safe solutions are very important. The Hypericum genus might be a potential source of new bio-insecticides due to the chemical composition of essential oils. In this study, components of essential oils of three Hypericum species were investigated for first time by Gas Chromatography-Mass Spectrometry (GC-MS) and, fumigant and contact toxicities as well as the repellent activity of essential oils of them were evaluated against S. zeamais adults. While the main components in H. mexicanum oil were determined as n-nonane (53.08%) and α-pinene (25.28%), the major constituents were determined as α-pinene (45.52%) and β-caryophyllene (13.59%) in the essential oil of H. myricariifolium. Chemical composition of essential oil of H. juniperinum were found to be n-nonane (12.0%), α-pinene (8.25%), geranyl acetate (7.93%), and β-caryophyllene (13.60%). The results revealed that H. mexicanum and H. myricariifolium oils have fumigant toxicity (LC50 < 500 µL/L air) and a potential action as repellents (RP > 70% at 6.2–22.7 μL/L air) for the control of the pest.

Analysis of the Essential Oil of Illicium henryi Diels Root Bark and Its Insecticidal Activity against Liposcelis bostrychophila Badonnel

2015 ◽  
Vol 78 (4) ◽  
pp. 772-777 ◽  
Author(s):  
XIN CHAO LIU ◽  
ZHI LONG LIU
Keyword(s):  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Contact Toxicity ◽  
Fumigant Toxicity ◽  
Root Bark ◽  
Liposcelis Bostrychophila ◽  
Stored Grains ◽  
Natural Insecticides ◽  
Main Components ◽  
Total Oil

Water-distilled essential oil from Illicium henryi (Illiciaceae) root bark was analyzed by gas chromatography–mass spectrometry. Thirty-four compounds, accounting for 97.86% of the total oil, were identified. The main components of the essential oil of I. henryi root bark were safrole (46.12%), myristicin (20.39%), and 1,8-cineole (6.17%), followed by α-cadinol (3.784%) and linalool (3.22%). The essential oil had higher levels of phenylpropanoids (66.89%) than of monoterpenoids (14.83%) and sesquiternoids (16.14%). Three constituents were isolated from the oil based on bioactivity fractionation. The essential oil possessed fumigant toxicity against booklice (Liposcelis bostrychophila), with a 50% lethal concentration (LC50) of 380.39 μg/liter of air, while the two isolated constituents myristicin and safrole had LC50s of 121.95 and 322.54 μg/liter, respectively. Another constituent, 1,8-cineole, showed weaker toxicity, with an LC50 of 1,120.43 μg/liter. The essential oil also exhibited contact toxicity against L. bostrychophila, with an LC50 of 96.83 μg/cm2. Myristicin (LC50, 18.74 μg/cm2) and safrole (LC50, 69.28 μg/cm2) exhibited stronger acute toxicity than 1,8-cineole (LC50, 1,049.41 μg/cm2) against the booklice. The results indicated that the essential oil and its constituent compounds have potential for development into natural insecticides for control of psocids in stored grains.

Essential oil of Ocotea odorifera: An alternative against Sitophilus zeamais

2013 ◽  
Vol 29 (2) ◽  
pp. 161-166 ◽  
Author(s):  
Altemir J. Mossi ◽  
Camila A. Zanella ◽  
Gabriela Kubiak ◽  
Lindomar A. Lerin ◽  
Rogerio L. Cansian ◽  
...  
Keyword(s):  
Essential Oil ◽  
Point Of View ◽  
Sitophilus Zeamais ◽  
Repellent Effect ◽  
Maize Weevil ◽  
Plant Oil ◽  
Synthetic Chemicals ◽  
Insect Mortality ◽  
Effect Level ◽  
Synthetic Pesticides

AbstractNowadays, the maize weevil Sitophilus zeamais—Motsch 1855 is the most relevant pest found during storage of maize grains. Aiming at protecting the agricultural crops, high amounts of synthetic pesticides are used around the world. In this sense, this work aimed at evaluating the insecticidal and repellent effect of essential oil of Ocotea odorifera (Vellozo) Rohwer (Lauraceae) (O. odorifera (sassafras)) leaves against the maize weevil in maize grains. The essential oil's chemical composition showed that sassafras contains camphor (43%) and safrole (42%) as major compounds. Our results show that sassafras oil was insecticidal and repellent to maize weevil. About 100% mortality was achieved using a concentration of 0.32 μl cm−2, after 24 h of exposure. The LD50 value was 14.1 μl or 0.09 μl cm−2 and the study of the effect on insect mortality at the lethal doses (LD50) showed that after 72 h mortality was 100%. The values of the preference index varied from −0.39 (0.065 μl cm−2) to −0.63 (0.659 μl cm−2), demonstrating that the plant oil presents repellent activity. The repellency bioassay simulating small bins showed the repellent effect level from 0.64 (0.36 μl cm−3) to 0.94 (2.9 μl cm−3). The essential oil of sassafras presented insecticidal and repellency against maize weevil. Although from an economical point of view synthetic chemicals are still more frequently used as repellents, natural products (essential oils) have the potential to provide efficient and safer repellents for humans and the environment.

The chemical composition, antimicrobial, and antioxidant activities of Pycnocycla spinosa and Pycnocyla flabellifolia essential oils

2016 ◽  
Vol 71 (11-12) ◽  
pp. 403-408 ◽  
Author(s):  
Mohaddese Mahboubi ◽  
Elaheh Mahdizadeh ◽  
Rezvan Heidary Tabar
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Inhibition Zone ◽  
Chemical Compositions ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Dilution Assay ◽  
Main Components ◽  
Broth Dilution

Abstract The purpose of our study was to compare the chemical compositions and antimicrobial and antioxidant activities of Pycnocycla spinosa and Pycnocycla flabellifolia essential oils. cis-Asarone (62.5%) and widdra-2,4(14)-diene (9%) were the main components of P. spinosa aerial part essential oil, while elemicin (60.1%) and caryophyllene oxide (9.8%) were the main components of P. spinosa seed essential oil. α-Phellandrene (25.5%), p-cymene (15.3%), and limonene (13.3%) were found in P. flabellifolia essential oil. The inhibition zone diameters for P. flabellifolia essential oil were significantly higher than for the two other essential oils from P. spinosa (p<0.05). In broth dilution assay (µL/mL), the sensitive microorganism to Pycnocycla sp. (P. spinosa, P. flabellifolia) was Aspergillus niger, followed by Candida albicans. In 2,2-diphenyl-1-picrylhydrazyl (DPPH) system, P. spinosa aerial parts essential oil (IC50=548 µg/mL) had higher antioxidant activity than that of two other essential oils.

scholarly journals Chemical Composition of the Essential Oil of Bupleurum Fontanesii (Apiaceae) Growing Wild in Sicily and its Activity on Microorganisms Affecting Historical Art Crafts

2016 ◽  
Vol 11 (1) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Simona Casiglia ◽  
Maurizio Bruno ◽  
Federica Senatore ◽  
Felice Senatore
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Chemical Composition ◽  
Aspergillus Niger ◽  
Essential Oil ◽  
Fusarium Oxysporum ◽  
Caryophyllene Oxide ◽  
Main Components ◽  
Historical Art

Hydrodistillation of the flowers (BpFl) of and fruits (BpFr) of Bupleurum fontanesii Guss. ex Caruel gave two oils that were analyzed by GC and GC-MS. The main components were α-elemol (16.7%), caryophyllene oxide (16.4%) and heptacosane (15.9%) in BpFl, and spathulenol (16.8%), caryophylladienol I (13.2%) and α-elemol (12.8%) in BpFr. A good antimicrobial activity against several microorganisms, including Bacillus subtilis, Staphylococcus aureus, Fusarium oxysporum and Aspergillus niger, all infesting historical art craft, was also determined.

scholarly journals Estragole-rich essential oil of summer savory (Satureja hortensis L.) as an eco-friendly alternative to the synthetic insecticides in management of two stored-products insect pests

2020 ◽  
Vol 115 (2) ◽  
pp. 307
Author(s):  
Asgar EBADOLLAHI
Keyword(s):  
Essential Oil ◽  
Insect Pests ◽  
Probit Analysis ◽  
Rhyzopertha Dominica ◽  
Fumigant Toxicity ◽  
Stored Products ◽  
Satureja Hortensis ◽  
Main Components ◽  
High Level ◽  
Chemical Pesticides

<p>The lesser grain borer [<em>Rhyzopertha dominica</em> (Fabricius, 1792)] and the red flour beetle [<em>Tribolium castaneum</em> (Herbst, 1797)] are among the cosmopolitan damaging pests on several stored-products. The overuse of chemical pesticides in the control of such pests caused several side-effects including environmental contaminations, human health problems, and insect pests' resistance. In this circumstance, researchers have focused on safe and effective alternatives to chemical pesticides. In the present study, the insecticidal efficiency of essential oil extracted from the summer savory (<em>Satureja hortensis</em> L.) was assessed on the <em>R. dominica </em>and<em> T. castaneum</em> adults. The chemical profile of essential oil was evaluated through a gas chromatography-mass spectrometer, in which estragole, β-ocimene and d-limonene were the main components. The essential oil had considerable fumigant toxicity on insect pests. The mortality of insects was dependent on the essential oil concentration and exposure time. Probit analysis indicated that <em>R. dominica</em> with low LC<sub>50</sub> values (Lethal Concentration to kill 50 % of tested insects) was more susceptible than <em>T. castaneum</em>. Accordingly, <em>S. hortensis</em> essential oil with a high level of phenylpropanoid and terpenic compounds can be recommended as an efficient and natural alternative to the detrimental chemicals in the management of<em> R. dominica </em>and<em> T. castaneum</em>.</p>

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