scholarly journals Comparative evaluation of insecticidal properties of essential oils of some selected botanicals as bio-pesticides against Cowpea bruchid, Callosobruchus maculatus (Fabricius) [Coleoptera: Chrysomelidae]

2020 ◽  
Vol 44 (1) ◽  
Author(s):  
Joy Ejemen Idoko ◽  
Kayode David Ileke
Keyword(s):  
Essential Oils ◽  
Comparative Evaluation ◽  
Callosobruchus Maculatus ◽  
Cowpea Bruchid

Evaluation of Cymbopogon flexuosus and Alpinia zerumbet essential oils as biopesticides against Callosobruchus maculatus

2021 ◽  
Author(s):  
Douglas Rafael e Silva Barbosa ◽  
Rebeca Barbosa Vieira dos Santos ◽  
Flavia Mayara Pereira Santos ◽  
Pedro Justino da Silva Junior ◽  
Francisco Marques de Oliveira Neto ◽  
...  
Keyword(s):  
Essential Oils ◽  
Callosobruchus Maculatus ◽  
Cymbopogon Flexuosus ◽  
Alpinia Zerumbet

scholarly journals Fumigation and repellency of essential oils against Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae) in cowpea

2017 ◽  
Vol 52 (1) ◽  
pp. 10-17 ◽  
Author(s):  
José Vargas de Oliveira ◽  
Solange Maria de França ◽  
Douglas Rafael e Silva Barbosa ◽  
Kamilla de Andrade Dutra ◽  
Alice Maria Nascimento de Araujo ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oils ◽  
Callosobruchus Maculatus ◽  
Ricinus Communis ◽  
Syzygium Aromaticum ◽  
Cymbopogon Citratus ◽  
Cinnamomum Zeylanicum ◽  
Main Component ◽  
Piper Aduncum

Abstract: The objective of this work was to assess the fumigant and repellent effects of essential oils on adults of Callosobruchus maculatus and to identify the chemical composition of two of the tested essential oils. For the fumigation test, the oils of Schinus terebinthifolius, Piper aduncum, Syzygium aromaticum, Piper hispidinervum, Cymbopogon citratus, Cinnamomum zeylanicum, and the eugenol compound were tested at different concentrations on C. maculatus adults. For the repellency test, the oils of S. terebinthifolius, P. aduncum, P. hispidinervum, S. aromaticum, Jatropha curcas, and Ricinus communis were evaluated. In the fumigation test, it was observed that P. aduncum and eugenol showed the highest and lowest LC50s, of 169.50 and 0.28 μL L-1 air, respectively. In the repellency test, the oils of S. aromaticum and P. hispidinervum were repellent to C. maculatus. Gas chromatography coupled to mass spectrometry (GC-MS) analysis of these two oils identified 42 compounds, of which safrole was the main component of P. hispidinervum and eugenol of S. aromaticum. The essential oils of S. aromaticum, C. zeylanicum, and the eugenol compound are the most promising to control C. maculatus, via fumigation.

scholarly journals Lethal and Sublethal Effects of Essential Oils fromEucalyptus camaldulensisandHeracleum persicumAgainst the Adults of Callosobruchus Maculatus

2013 ◽  
Vol 13 (152) ◽  
pp. 1-10 ◽  
Author(s):  
Khadijeh Izakmehri ◽  
Moosa Saber ◽  
Ali Mehrvar ◽  
Mohammad Bagher Hassanpouraghdam ◽  
Samad Vojoudi
Keyword(s):  
Essential Oils ◽  
Callosobruchus Maculatus ◽  
Sublethal Effects

scholarly journals Evaluation on the Effect of Sustainable Environmental Friendly Bio-pesticide on the Growth of seed Borne Fungi (Aspergillus niger) on Cowpea (Vigna unguiculata L. Walp.)

2021 ◽  
Vol 4 (2) ◽  
pp. 55-79
Author(s):  
Azawei A. ◽  
Okorodo P.C. ◽  
Blessing E.
Keyword(s):  
Essential Oils ◽  
Vigna Unguiculata ◽  
Niger Delta ◽  
Seed Treatment ◽  
Callosobruchus Maculatus ◽  
Insect Pest ◽  
Soil Science ◽  
Plant Essential Oils ◽  
Environmental Friendly ◽  
Randomized Design

Evaluation on the Effect of Sustainable Environmental Friendly Bio Pesticides Application on the Growth of Seed borne Fungi on Cowpea (Vigna unguiculata L. Walp.) was conducted at the Department of Crop and Soil Science Laboratory, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria. To determine the percentage (%) efficacy of plant essential oils and to evaluate the best plant essential oil on the suppression of the pathogen cultured and treated Potatoes Dextrose Agar (PDA) plates with the different plant essential oils concentration levels (0.1, 0.01, and 0.001%). This experiment was arranged in Complete Randomized Design (CRD) and each treatment was replicated three times and each replicate contained 12 petri dishes. The result shows that ginger oil at 0.1 in all the days of the bioassay assessment, particularly, from day 6-day10 proved more effective in suppressing the teste pathogen (A. niger), this could be the present of the active ingredient (Zingerone) on the treatment. Therefore, this result should be encouraged for Cowpea farmers as seed treatment before storage to prevent Cowpea weevils (Callosobruchus maculatus) as a grain storage insect pest, that causes serious destruction on the stored grains.

scholarly journals Chemical Composition of Cinnamomum verum Leaf and Flower Essential Oils and Analysis of Their Antibacterial, Insecticidal, and Larvicidal Properties

Molecules ◽  
2021 ◽  
Vol 26 (20) ◽  
pp. 6303
Author(s):  
Arunaksharan Narayanankutty ◽  
Krishnaprasad Kunnath ◽  
Ahmed Alfarhan ◽  
Rajakrishnan Rajagopal ◽  
Varsha Ramesh
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Callosobruchus Maculatus ◽  
Sitophilus Oryzae ◽  
Microbial Pathogens ◽  
Traditional Medicines ◽  
Significant Toxicity ◽  
Leaf Essential Oil ◽  
Different Parts

Cinnamomum verum is widely used in traditional medicines, and the different parts of the plant, such as bark, leaves, and flowers, are used for essential oil production. The present study compared the chemical composition of the essential oil of C. verum extracted from the leaves and flowers. In addition, efficacy of these essential oils against the two common pests Sitophilus oryzae and Callosobruchus maculatus was also evaluated. The results indicated the presence of cinnamaldehyde, eugenol, caryophyllene, and linalool in these essential oils, however, at different concentrations. The leaf essential oil was found to be 10–20% more effective as a fumigant against both the pests. Likewise, the leaf essential oil found to repel these pests even at lower concentrations than that of flower essential oil of C. verum. Besides, these essential oils were also effective in controlling the growth of various gram positive and gram negative microbial pathogens and possibly a safeguard for human health. On contrary, both the essential oils were found to be safe for the application on grains, as indicated by their germination potentials. It was also observed that these essential oils do not cause any significant toxicity to guppy fishes, thus confirming their ecological safety for use as a biopesticide.

Hypoxic environment protects cowpea bruchid (Callosobruchus maculatus) from electron beam irradiation damage

2018 ◽  
Vol 75 (3) ◽  
pp. 726-735 ◽  
Author(s):  
Lei Wang ◽  
Weining Cheng ◽  
Jia Meng ◽  
Mickey Speakmon ◽  
Jiangping Qiu ◽  
...  
Keyword(s):  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Callosobruchus Maculatus ◽  
Irradiation Damage ◽  
Beam Irradiation ◽  
Hypoxic Environment ◽  
Cowpea Bruchid

Use of Microwave Heating Technology for Disinfestation of Stored Green Gram (Vigna radiata) against Cowpea Bruchid Callosobruchus maculatus (Fabricius)

2021 ◽  
Author(s):  
R. Kooner ◽  
D.K. Sharma ◽  
K.S. Suri
Keyword(s):  
Callosobruchus Maculatus ◽  
Pupal Stage ◽  
Exposure Period ◽  
Green Gram ◽  
Life Stages ◽  
Chemical Methods ◽  
Cowpea Weevil ◽  
Alternative Approach ◽  
Cowpea Bruchid ◽  
Heating Technology

Background: Pulses are an integral component of food in India which acts as major source of protein required for growth and maintenance of body. But during their storage they suffer heavy losses resulting in depletion of their quality and edibility. The present studies focused on disinfestation of green gram grains using microwaves as an alternative approach to chemical methods for controlling insects in grains and pulses. Methods: In this laboratory studies during 2017-18, the grains of green gram were infested with different life stages of the cowpea weevil and exposed to 200, 400, 600 and 800 W microwave power levels, each at an exposure period of 10, 20, 30 and 40 s. Result: Eggs were the most susceptible, while pupal and adults were the least susceptible life stages to microwave treatments. Complete mortality of eggs was achieved with microwave treatments (400, 600 and 800 W), each at an exposure period of 30 and 40 s. Complete inhibition of larval stage was attained with 400 and 600 W (30 and 40 s) and 800 W (20, 30 and 40 s exposure) while for pupal stage it was observed at the higher wattages of 600 (40 s exposure) and 800 (30 and 40 s exposure). Microwave wattage of 600 W for 40 sand 800 W for 30 and 40 s exposure caused 100% mortality of 2d old adults of cowpea bruchid.

scholarly journals Characterization of Some Italian Ornamental Thyme by Their Aroma

2010 ◽  
Vol 5 (2) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Alessandra Bertoli ◽  
Szilvia Sárosi ◽  
Jenő Bernáth ◽  
Luisa Pistelli
Keyword(s):  
Essential Oils ◽  
Comparative Evaluation ◽  
Plant Material ◽  
Ornamental Plants ◽  
Botanical Garden ◽  
Static Headspace ◽  
Volatile Constituents ◽  
Qualitative And Quantitative ◽  
Alternative Sources

The aromatic profiles of five commercial thyme cultivars (T. vulgaris ‘Silver Poise’, T. vulgaris ‘Erectus’, T. vulgaris ‘Faustini’, T. × citriodorus ‘Anderson's Gold’, and T. × citriodorus ‘Silver Queen’), cultivated in Italy, were defined both by their static headspaces (HS) and essential oils (EOs). In addition, a botanical garden sample of T. vulgaris was considered as reference material to evaluate the morphological and phytochemical differences from the selected market samples. Extractions of the volatile constituents of the different plant material were carried out by SPME (static headspace, HS) and hydrodistillation (HD) processes. GC-MS analysis provided the separation and identification of approximately 70 components in the HS samples and 50 in the hydrodistilled essential oils, accounting for more than 95% of the total. The typical main constituents of T. vulgaris were detected in all the EO samples, although qualitative and quantitative differences were found among the selected ornamental Thymus varieties. Thymol (50-55%) was the marker constituent for the three T. vulgaris cultivars, while geraniol (61-67%) characterized the essential oils of the two T. × citriodorus varieties. In all the analyzed essential oils, non-oxygenated (16-79%) and oxygenated (5-26%) monoterpenes were the typical volatile constituents. Specific target compounds (thymol, geraniol and 6-methyl-5-hepten-2-one) were selected to characterize the five thyme cultivars that are considered at present only as ornamental plants. A comparative evaluation of their EO quality was carried out in order to propose them as alternative sources of Italian raw plant material for industrial production.

Sign in / Sign up

Export Citation Format

Share Document