Protective effects of three Artemisia essential oils against Callosobruchus maculatus and Bruchus rufimanus (Coleoptera: Chrysomelidae) and the extended side-effects on their natural enemies

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.

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

Journal of Insect Science ◽

10.1673/031.013.15201 ◽

2013 ◽

Vol 13 (152) ◽

pp. 1-10 ◽

Cited By ~ 24

Author(s):

Khadijeh Izakmehri ◽

Moosa Saber ◽

Ali Mehrvar ◽

Mohammad Bagher Hassanpouraghdam ◽

Samad Vojoudi

Keyword(s):

Essential Oils ◽

Callosobruchus Maculatus ◽

Sublethal Effects

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Seasonal Variation in Essential Oils Composition and the Biological and Pharmaceutical Protective Effects of Mentha longifolia Leaves Grown in Tunisia

BioMed Research International ◽

10.1155/2018/7856517 ◽

2018 ◽

Vol 2018 ◽

pp. 1-12 ◽

Cited By ~ 10

Author(s):

Karama Zouari-Bouassida ◽

Mohamed Trigui ◽

Samar Makni ◽

Lobna Jlaiel ◽

Slim Tounsi

Keyword(s):

Seasonal Variation ◽

Essential Oils ◽

Biological Activities ◽

Winter Season ◽

Inflammatory Cells ◽

Ethyl Acetate Fraction ◽

Activity Level ◽

Potential Candidate ◽

Protective Effects ◽

Bacterial Strains

This research assessed the seasonal variation of the chemical composition and antibacterial and anticholinesterase activities of essential oils extracted from M. longifolia leaves. The leaves organic fractions were also investigated for their biological activities and pharmacological functions. The essential oil highest yield was recorded in the spring season. Pulegone (26.92%), 1.8 cineole (21.3 %), and L-menthone (10.66 %) were determined as its major compounds in the winter season. In the spring oil, the main components were pulegone (38.2 %) and oleic and palmitic acids (23.79 % and 15. 26 %, respectively). Oxygenated monoterpenes were predominant in the two analyzed samples. The tested oils and organic extracts exhibited promising antibacterial effects against all of the tested bacterial strains. Thanks to its richness in phenolic and flavonoid compounds, the ethyl acetate fraction (Ml EtOAcF) displayed the most active DPPH scavenging ability (IC50 =12.64 μg/ml) and an interesting β-carotene bleaching inhibition (IC50 =34.75 μg/ml) making it a potential candidate for anti-inflammatory evaluation on rats. This evaluation evidenced that M. longifolia pretreated rats showed a marked decrease in paw oedema and inflammatory cells. Additionally, a remarkable acetylcholinesterase inhibitory activity of the Ml EtOAcF (IC50 = 12.3μg/ml) and essential oils were also observed suggesting their neuroprotective property against Alzheimer’s disease. Moreover, it was found that its activity level was season dependent. Our investigation, therefore, clearly revealed the medicinal characteristics of M. longifolia leave indicating their potential uses for natural remedies.

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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.)

African Journal of Agriculture and Food Science ◽

10.52589/ajafs-bux3tpie ◽

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.

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Parasites of beetles which are pests of grain and products of its processing

Biosystems Diversity ◽

10.15421/011751 ◽

2018 ◽

Vol 25 (4) ◽

Author(s):

V. O. Martynov

Keyword(s):

Biological Control ◽

Natural Enemies ◽

Callosobruchus Maculatus ◽

Ecological Condition ◽

Rhyzopertha Dominica ◽

Economic Damage ◽

Crop Pests ◽

Main Crop ◽

Anisopteromalus Calandrae ◽

Favorable Conditions

Crop pests are the cause of economic damage in many developing countries, including Ukraine, where annual loss of crop harvest on average equals 6 million tons, valued at 840 million dollars. Pests consume grain, causing its pollution and creating favorable conditions for development of mold, which significantly decreases the food and seeding properties of grain and products of its processing. This article presents basic data on biological control and its advantages, demonstrates the variety of natural enemies of the pest beetles, which are used in biological control, analyses studies of the biological control of main crop pests and products of its processing belonging to the families Curculionidae and Tenebrionidae, and also the role of competition in biological control. The analysis of studies on the effectiveness of different natural enemies of the main crop pest-beetles shows that the most studied parasites are Sitophilus granarius, S. zeamais, Tribolium confusum, T. castaneum, Oryzaephilus surinamensis, Rhyzopertha dominica, Acanthoscelides obtectus and Callosobruchus maculatus. Natural enemies of the rest of the species are poorly studied, and there is no data on Caulophilus latinasus, Tenebroides mauritanicus, Dermestes lardarius, Ptinus fur and Bruchidius incarnatus. The most commonly used natural enemies are Xylocoris flavipes, Anisopteromalus calandrae, the entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana, and also nematodes of the Steinernema and Heterorhabditis genera. Despite the broad spectrum of natural enemies of the main pests of the grain supply, it is necessary to further study the parasites of every species of beetle which causes economic damage. Using biological control is the most promising method against pests of crops and products of its processing, which meets the current requirements to the sanitary-ecological condition of agricultural production.

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Essential Oil-Based Bioherbicides: Human Health Risks Analysis

International Journal of Molecular Sciences ◽

10.3390/ijms22179396 ◽

2021 ◽

Vol 22 (17) ◽

pp. 9396

Author(s):

Chloë Maes ◽

Jeroen Meersmans ◽

Laurence Lins ◽

Sandrine Bouquillon ◽

Marie-Laure Fauconnier

Keyword(s):

Side Effects ◽

Essential Oil ◽

Essential Oils ◽

Health Risks ◽

Good Alternative ◽

Aquatic Systems ◽

Air Transport ◽

Human Health Risks ◽

Potential Risks ◽

Negative Side Effects

In recent years, the development of new bio-based products for biocontrol has been gaining importance as it contributes to reducing the use of synthetic herbicides in agriculture. Conventional herbicides (i.e., the ones with synthetic molecules) can lead to adverse effects such as human diseases (cancers, neurodegenerative diseases, reproductive perturbations, etc.) but also to disturbing the environment because of their drift in the air, transport throughout aquatic systems and persistence across different environments. The use of natural molecules seems to be a very good alternative for maintaining productive agriculture but without the negative side effects of synthetic herbicides. In this context, essential oils and their components are increasingly studied in order to produce several categories of biopesticides thanks to their well-known biocidal activities. However, these molecules can also be potentially hazardous to humans and the environment. This article reviews the state of the literature and regulations with regard to the potential risks related to the use of essential oils as bioherbicides in agricultural and horticultural applications.

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

Molecules ◽

10.3390/molecules26206303 ◽

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.

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