scholarly journals Repellent Activity of Cymbopogon citratus Essential Oil Against Four Major Stored Product Pests: Plodia interpunctella, Sitophilus oryzae, Acanthoscelides obtectus and Tribolium castaneum

2021 ◽  
Vol 70 (3-4) ◽  
pp. 140-148
Author(s):  
Sonja Gvozdenac ◽  
Biljana Kiprovski ◽  
Milica Aćimović ◽  
Jovana Stanković Jeremić ◽  
Mirjana Cvetković ◽  
...  
Keyword(s):  
Essential Oil ◽  
Tribolium Castaneum ◽  
Sitophilus Oryzae ◽  
Chemical Characterization ◽  
Plodia Interpunctella ◽  
Repellent Activity ◽  
Class Iii ◽  
Cymbopogon Citratus ◽  
Acanthoscelides Obtectus ◽  
Stored Product Pests

Summary The purpose of this study is to assess the repellent activity of lemongrass (Cymbopogon citratus) essential oil (EO), grown in Serbia under greenhouse conditions, against four prevalent stored product pests: Plodia interpunctella (larvae), Sitophilus oryzae, Acanthoscelides obtectus and Tribolium castaneum (adults). The lemongrass EO repellency was tested using filter paper in Petri dishes and a Y-tube olfactometer. According to the repellency index (RI), the lemongrass EO repellency was divided into 5 classes. Prior to biotesting, the chemical characterization of lemongrass EO was performed and the following main compounds were detected: myrcene (31.0%), geranial (30.0%), and neral (23.6%). The C. citratus EO considered was found to exhibit the Class III repellent activity against P. interpunctella larvae only at the highest concentration (namely 0.5%). This is the very first report on the C. citratus EO repellent activity against this pest. The lemongrass EO examined showed strong repellency (Class IV) against S. oryzae (0.2% and 0.5% of EO), A. obtectus (0.1% and 0.2%), and T. castaneum (0.05-0.1%). Moreover, higher lemongrass EO concentrations (0.5%) were found to exhibit extreme repellency (Class V) against A. obtectus and T. castaneum. The results obtained were confirmed in the bioassays performed, indicating the great potential of lemongrass EO as a bio-repellent when applied in higher concentrations to all the insects considered, regardless of the exposure period.

scholarly journals Antifungal and Insecticidal Properties of Juniperus thurifera Leaves

2018 ◽  
Vol 13 (8) ◽  
pp. 1934578X1801300 ◽  
Author(s):  
Meryem El Jemli ◽  
Naima Khattabi ◽  
Khadija Lachqer ◽  
Driss Touati ◽  
Yousra El Jemli ◽  
...  
Keyword(s):  
Essential Oil ◽  
Tribolium Castaneum ◽  
Fusarium Solani ◽  
Mycelial Growth ◽  
Antioxidant Activities ◽  
Sitophilus Oryzae ◽  
Antioxidant Effect ◽  
Juniperus Thurifera ◽  
Acanthoscelides Obtectus ◽  
Verticillium Dahlia

The hydro-distilled essential oil from the leaves of Juniperus thurifera L. (JTEO) was analyzed by GC-MS and examined for its insecticidal, antifungal and antioxidant activities. A total of 51 compounds were identified. The major components were sabinene (22.4%), followed by terpinen-4-ol (11.0%) and α-pinene (5.9%). JTEO exhibited interesting insecticidal activity against adults of Acanthoscelides obtectus, Tribolium castaneum and Sitophilus oryzae, with LC50 values of 0.1, 0.6 and 2.0×10−2 μL/mL, respectively. Moreover, JTEO showed inhibitory activity against Alternaria alternata, Fusarium oxysporum, Fusarium solani, Rhizoctonia solani and Verticillium dahlia with mycelial growth inhibition ranging from 24.0% to 92.1%. Finally, JTEO demonstrated a moderate antioxidant effect.

scholarly journals Volatile chemical composition of essential oil from Bursera graveolens (Kunth) Triana & Planch and their fumigant and repellent activities

2019 ◽  
Vol 41 ◽  
pp. e46822
Author(s):  
Beatriz Eugenia Jaramillo-Colorado ◽  
Samyr Suarez-López ◽  
Vanessa Marrugo-Santander
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Tribolium Castaneum ◽  
Repellent Activity ◽  
Gas Chromatography Mass Spectrometry ◽  
Promising Alternative ◽  
Fumigant Activity

The objectives of this work were the study of the volatile chemical composition of essential oils (EO’s) from Bursera graveolens obtained in the locality of Malagana, municipality of Mahates, Bolívar, Colombia, as well as to evaluate their repellent and fumigant properties. EO’s were extracted by hydro-distillation and characterized by gas chromatography-mass spectrometry (GC-MS). The major compounds found in B. graveolens were limonene (42.2%), pulegone (20.9%), carvone (7.5%), caryophyllene (4.1%), and trans-carveol (3.8%). The repellent activity of EO’s was determined by the area preference method, where the EO of B. graveolens presented repellent activity against the Tribolium castaneum weevil at a concentration of 1 at 2% and 4 hours of exposure (88.1 and 88.6% respectively). B. graveolens essential oil was more effective in its fumigant activity with LC50 of 108.2 μg oil mL-1. Also, the fumigant and repellent activities of two individual compounds present in the oil were evaluated, that is, limonene (majority) and caryophyllene. The results indicated that B. graveolens essential oil could be a promising alternative to new natural repellents and biocides.

Insecticidal properties of Thymus persicus essential oil against Tribolium castaneum and Sitophilus oryzae

2009 ◽  
Vol 83 (1) ◽  
pp. 3-8 ◽  
Author(s):  
Akram Taghizadeh Saroukolai ◽  
Saeid Moharramipour ◽  
Mohammad Hadi Meshkatalsadat
Keyword(s):  
Essential Oil ◽  
Tribolium Castaneum ◽  
Sitophilus Oryzae ◽  
Thymus Persicus

scholarly journals Chemical composition and insecticidal activity of Cymbopogon citratus essential oil from Cuba and Brazil against housefly

2015 ◽  
Vol 24 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Zeneida Teixeira Pinto ◽  
Félix Fernández Sánchez ◽  
Arith Ramos dos Santos ◽  
Ana Claudia Fernandes Amaral ◽  
José Luiz Pinto Ferreira ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Morphological Changes ◽  
Chemical Characterization ◽  
Composition Analysis ◽  
Cymbopogon Citratus ◽  
Newly Hatched Larvae ◽  
Main Components ◽  
Dose Dependent

Essential oil of Cymbopogon citratus collected from Brazil and Cuba was tested to a chemical characterization and then was tested on the post-embryonic development of Musca domestica. The chemical composition analysis by GC-MS of the oils from Brazil/Cuba allowed the identification of 13 and 12 major constituents respectively; nine of them common to both. In the both oils, the main components were the isomers geranial and neral, which together form the compound citral. This corresponds to a total of 97.92%/Brazil and 97.69%/Cuba of the compounds identified. The monoterpene myrcene, observed only in the sample of Cuba, presented a large relative abundance (6.52%). The essential oil of C. citratus (Brazil/Cuba) was dissolved in DMSO and tested at concentrations of 5, 10, 25, 50, 75 and 100% and citral was prepared by mixing 16.8 mg with 960 µL DMSO. Both essential oils and monoterpene citral were applied topically to newly-hatched larvae (1µL/larva). The results showed a lethal concentration (LC50) of 4.25 and 3.24% for the Brazilian and Cuban essential oils, respectively. Mortalities of larval and newly-hatched larvae to adult periods were dose-dependent for the two both oils as for monoterpene citral, reaching 90%. Both essential oils and citral caused morphological changes in adult specimens.

Toxic and repellent action of sugarcane bagasse-based lignin against some stored grain insect pests

1970 ◽  
Vol 25 ◽  
pp. 27-30 ◽  
Author(s):  
LA Muslima Khanam ◽  
D Talukder ◽  
MA Hye
Keyword(s):  
Tribolium Castaneum ◽  
Sugarcane Bagasse ◽  
Laboratory Experiments ◽  
Callosobruchus Maculatus ◽  
Insect Pests ◽  
Sitophilus Oryzae ◽  
Repellent Activity ◽  
Stored Grain ◽  
Time Intervals ◽  
Class V

Laboratory experiments were carried out to investigate the efficacy of sugarcane bagasse-based lignin against four stored grain insect pests viz., Tribolium castaneum, Tribolium confusum, Sitophilus oryzae and Callosobruchus maculatus. Mortality was assessed after 24, 48 and 72 h of treatment and LD50 values were calculated at the respective time intervals. It was observed that T. castaneum is more susceptible to the lignin than the other test insects. Repellent activity of the product was conducted for T. castaneum and T. confusum. All the concentrations of the product were found to be repellent to both the insect species. Strong repellent activity was observed at concentrations of 471.57 and 628.76 µg.cm-2 to T. confusum showing the repellency of class V activity. Key words: Bagasse-based lignin, toxicity, repellency, Tribolium castaneum, T. confusum, Sitophilus oryzae, Callosobruchus maculatus Univ. j. zool. Rajshahi Univ. Vol.25 2006 p.27-30

scholarly journals Chemical Composition and Insecticidal Potential of Pulicaria incisa (Lam) Essential Oil from Moroccan Plant Against Sitophilus oryzae (L.) and Tribolium castaneum (Herbst.)

2021 ◽  
Vol 12 (2) ◽  
pp. 2262-2274
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Tribolium Castaneum ◽  
Sitophilus Oryzae ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Medicinal And Aromatic Plants ◽  
Insecticidal Effect ◽  
Oil Concentration ◽  
Total Oil

Pulicaria incisa (Lam) is a wild-growing plant in Morocco and has been traditionally used by farmers to control pests of stored grains. The present study was conducted to investigate the chemical composition and insecticidal effect of the essential oil of P. incisa against Sitophilus oryzae (L.) and Tribolium castaneum (Herbst.) by different methods (contact, fumigation and ingestion). The aerial parts of the plant were subjected to hydrodistillation using a Clevenger-type apparatus. The essential oil composition was analyzed by gas chromatography (GC) and mass spectrophotometry (MS). Sixty-six compounds representing 89.4% of total oil were identified. The main components were α-Ocimene (15.17%), τ-Cadinol (6.79%), α-Cadinol (4.51%), Alloaromadendrene (4.45%) δ-Cadinene, (+) - (4.13%). The repellant toxicity test results revealed a higher repellency effect in S. oryzae than T. castaneum. Lethal concentration (LC50), varied between 15.49 - 1.73 μL/cm2 and 20.89 - 2.29 μL/cm2 respectively. In the fumigation test, adults of S. oryzae and T. castaneum were sensitive to the essential oil with LC50 values varying between 16.21 - 2.08 and 18.62 - 2.51 μL/L air. In addition, experiments have shown that the ingestion method is the most toxic towards both insects with LC50 values of the order of 12.59 - 1.51 μL/g for S. oryzae and 14.12 - 2.39 μL/g for T. castaneum. While the lethal time (LT50) values decreased with increasing essential oil concentration, and in all cases, the increased susceptibility of both insects was directly associated with oil concentration and exposure time. This study aims to valorize medicinal and aromatic plants of the Moroccan flora in order to find novel bio-insecticidal products. Furthermore, the study reports for the first time the insecticidal activity of P. incisa against adults S. oryzae and T. castaneum.

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