Chemical composition and insecticidal activity of essential oils from cultivated and native aromatic plants of Argentina against
            <i>Carpophilus dimidiatus</i>
            (Fabricius) (Nitidulidae) and
            <i>Oryzaephilus mercator</i>
            (L.) (Silvanidae)

Denett, Gabriel O.; Rodríguez, María Rosa; Gómez, Analía de Los Angeles; Matías, Mariana del H. Sánchez; Sampietro, Diego Alejandro

doi:10.1080/14786419.2023.2166043

Cited by 5 publications

(5 citation statements)

References 11 publications

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“…Insect repellency, fumigant toxicity, and contact toxicity assays are conventional methods for evaluating the biological efficacy and effectiveness of substances, including EOs and other natural extracts, against insects (pests). These biological indices are an integral part of the profile and the mode of application for selecting potent insecticidal and/or pesticidal agents [30]; hence, they were adopted in this study.…”

Section: Insecticidal Properties Of C Limon Oils Against Sitophilus Z...mentioning

confidence: 99%

Citrus limon Wastes from Part of the Eastern Cape Province in South Africa: Medicinal, Sustainable Agricultural, and Bio-Resource Potential

Nodola,

Miya,

Mazwi

et al. 2024

Molecules

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The fruits of Citrus limon are often purchased for their vitamin C-rich juice, while the fruit peel and the tree leaves are discarded as wastes. This study obtained the chemical profiles of the essential oils (EOs) of C. limon wastes (the peel and leaves), evaluated their medicinal value as antioxidants, their potential for sustainable use in agriculture as an insecticide for post-harvest preservation of grains, and their potential as a bioresource in livestock feed formulations. The EOs were isolated from C. limon leaves and peel using a hydro-distillation method on a Clevenger apparatus. The oil constituents were identified using the gas chromatography-mass spectrometry (GC-MS) hyphenated technique. The oils were evaluated for their in vitro antioxidant activity using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric-reducing antioxidant power methods. An insecticidal study was conducted using contact toxicity, fumigation, and repellence bioassay methods against Sitophilus zeamais (maize weevils). Finally, the predicted income from using lemon peel as an alternative or substitute ingredient for maize in livestock feed formulations was obtained through a conventional simulation method. Chemically, limonene was found to be present in all the EOs analyzed (12–52%), while α-pinene was only found in the fresh leaf and peel oils (13.3% and 10.6%). Caryophyllene oxide was identified as the major component of the dried leaf oil (17.7%). At 20 µg m, the dry peel oil exhibited the highest inhibitory activity (52.41 ± 0.26%) against the DPPH radical, which was comparable to L-ascorbic acid (a standard antioxidant) at 54.25 ± 3.55%. The insecticidal study revealed that the dry peel oil is a better insect repellent (73.33 ± 6.95% at 10 µL) and fumigant (LC50 = 0.17 µL g−1 after 48 h) natural agent compared to the peel oil. Conversely, the dry peel oil showed a better contact activity (LC50 = 1.69 µL g−1) against the maize weevils compared to the dry leaf oil. The simulation study showed the cost of using dry lemon peel as an alternative to maize in livestock feed formulation to be ZAR 2.8 billion, compared against the higher cost of feed formulation with maize, which currently stands at ZAR 24.9 billion. This study has shown that C. limon wastes (the peel and leaves) contain EOs with unique chemical profiles, valuable medicinal properties as free radical scavengers, and considerable insecticidal properties for agricultural use in post-harvest grain preservation, presenting a cost-effective and promising bioresource for livestock feed production.

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Section: Insecticidal Properties Of C Limon Oils Against Sitophilus Z...mentioning

confidence: 99%

Citrus limon Wastes from Part of the Eastern Cape Province in South Africa: Medicinal, Sustainable Agricultural, and Bio-Resource Potential

Nodola,

Miya,

Mazwi

et al. 2024

Molecules

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“…Walnut storage often experiences beetle infestations, particularly in Northwest Argentina, where it is mainly affected by Carpophilus dimidiatus (Fabricius) (Nitidulidae) and Oryzaephilus mercator (L.) (Silvanidae) (Comelli et al 2023;Comelli et al 2018;Denett et al 2023).Direct and indirect losses generated by these insects commonly range from 30% to 74% of the stored walnuts (Lacelli et al 2022). Indirect losses primarily occur when microbial food spoilers, including Fusarium species, enter the damaged walnuts (Seta et al 2004).…”

Section: Introductionmentioning

confidence: 99%

“…In this work, we report a green synthetic route for the production of copper oxide nanoparticles (CuO-NPs) with hydrolates of Lippia integrifolia and Pimpinella anisum. Both plant species exhibit insecticidal activities against the beetles C. dimidiatus and O. mercator (Comelli et al 2023;Denett et al 2023). The reaction of these two hydrolates with copper acetate in alkaline media leads to the formation of CuO-NPs with distinct size and aggregation patterns.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of green cupric oxide nanoparticles for walnut storage pest management

Rodríguez,

Comelli,

López

et al. 2024

Preprint

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Walnut yield and quality are often affected by beetle infestations, particularly those caused by Carpophilus dimidiatus (Fabricius) (Nitidulidae) and Oryzaephilus mercator (L.) (Silvanidae). Beetle damage exposes walnut to microbial food spoilers such as Fusarium species. Insecticides currently used for beetle control are environmentally unfriendly. Pest-suppressing nanomaterials can generate innovative nanopesticide technologies leading to more sustainable and efficient farming practices. This work explores a green synthesis approach for copper oxide nanoparticles (CuO-NPs) in basic medium by hydrolates obtained from Lippia integrifolia and Pimpinella anisum, denoted as CuO-I and CuO-A, respectively. Characterization through XRD, FT-IR, Raman, UV-Visible absorbance, and AFM techniques, indicated that CuO-A and CuO-I have a size ranging 2-10 nm height. Antifungal assay showed that both have a similar efficacy (MID = 320 µg), 3-fold stronger than CuO- NPs obtained in absence of hydrolates (denotes CuO-W) (MID = 960 µg), with the broadest inhibitory halos (ID = 126-128 mm) observed for CuO-A. Insecticidal activity of CuO-NPs showed a concentration-dependent behavior, with CuO-I showing an effect comparable to diatomaceous earth. SEM images confirm the adhesion of nanoparticles to insect surfaces, which could induce oxygen deprivation and disrupting of metabolic processes. Both CuO-A and CuO-I are promising for their use in integrated pest control in walnut storage.

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“…In this province, walnut production is carried out by small-scale farmers using various cultivation practices. However, the quality of the produced walnuts is significantly impacted by beetles, specifically the species Carpophilus dimidiatus (Fabricius) (Nitidulidae) and Oryzaephilus mercator (L.) (Silvanidae). , These pests feed on damaged seeds in both adult and larva stages and complete their life cycles during storage, often leading to the destruction of up to 100% of the stored walnuts. Currently, aluminum phosphide insecticide is used to control these pests.…”

Section: Introductionmentioning

confidence: 99%

“…Aromatic plants play essential roles in ecosystems . Their chemical defense system is based on volatile secondary metabolites, and it offers new scientific approaches for pest control, aiming to promote sustainable and efficient agricultural practices. , Recently, phytochemical investigations from essential oils of aromatic plants used as flavoring agents in Catamarca have shown insecticide activity on C. dimidiatus and O. mercator . , In the context of the integrated pest management, excito-repellent chemicals may prevent the physical association between insect pests and commodities by reducing the ability of arthropods to recognize its host . These stimuli have the potential to reduce pest damage by modifying spatial distribution and inhibiting specific behaviors, such as feeding and oviposition .…”

Section: Introductionmentioning

confidence: 99%

Excito-repellent and Pesticide-Likeness Properties of Essential Oils on Carpophilus dimidiatus (Fabricius) (Nitidulidae) and Oryzaephilus mercator (L.) (Silvanidae)

Comelli,

Diez,

Rodríguez

et al. 2023

J. Chem. Inf. Model.

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Carpophilus dimidiatus (Fabricius) (Nitidulidae) and Oryzaephilus mercator (L.) (Silvanidae) are insect pests that cause severe damage in important walnut growing regions in the northwest of Argentina. The current management approaches for these pests involve the use of unsafe phosphorus pesticides whose overuse have led to farmworker poisoning, pest resistance issues, and environmental contamination. Plant extracts, particularly essential oils, are an alternative source of insect control agents. Excitorepellent essential oils can be used to develop ecofriendly tools for managing the pest population without affecting quality and visual appearance of the stored walnuts. Laboratory studies were conducted to assess the excito-repellent effects of C. dimidiatus and O. mercator of 12 essential oils derived from aromatic plants used as food additives and traditional medicine in Argentina: Aloysia citrodora (AC), Aloysia gratissima (AG), Aloysia gratissima var. Gratissima (AGG), Blepharocalyx salicipholius (BS), Hyptis mutabilis (HM), Lippia junelliana (LJ), Lippia turbinata (LT), Mentha x piperita (MP), Minthostachys mollis (MM), Minthostachys verticillata (MV), Origanum vulgare(OV), and Rosmarinus of ficinalis (RO). The most bioactive EOs (ER ijk ≥ 70%) were Aloysia gratissima var. Gratissima (AGG), Minthostachys verticillata, and Lippia junelliana. Their bioactivity profile and chemical space, characterized from GC-MS measures, Generalized Estimating Equations, and Hierarchical Cluster Analysis, revealed that they are mixtures of very functionalized molecules with physicochemical properties similar to those of insecticides with low residual property that enter the insect body through the respiratory system by inhalation. The AGG, MV, and LJ oils are promising as protective agents of walnut products. In our laboratory, studies of their formulations for use in integrated pest management programs are still ongoing.

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Chemical composition and insecticidal activity of essential oils from cultivated and native aromatic plants of Argentina against Carpophilus dimidiatus (Fabricius) (Nitidulidae) and Oryzaephilus mercator (L.) (Silvanidae)

Abstract: Chemical composition and insecticidal activity of essential oils from cultivated and native aromatic plants of Argentina against Carpophilus dimidiatus (Fabricius)(Nitidulidae) and Oryzaephilus mercator (L.

Cited by 5 publications

References 11 publications

Citrus limon Wastes from Part of the Eastern Cape Province in South Africa: Medicinal, Sustainable Agricultural, and Bio-Resource Potential

Citrus limon Wastes from Part of the Eastern Cape Province in South Africa: Medicinal, Sustainable Agricultural, and Bio-Resource Potential

Effectiveness of green cupric oxide nanoparticles for walnut storage pest management

Excito-repellent and Pesticide-Likeness Properties of Essential Oils on Carpophilus dimidiatus (Fabricius) (Nitidulidae) and Oryzaephilus mercator (L.) (Silvanidae)

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