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Lima EAS, Campos DR, Soares EFMS, Fortunato ABR, Silva TME, de Figueiredo Pereira N, Chaves DSDA, Cid YP, Coumendouros K. Insecticidal and Repellent Activity of Essential Oils from Copaifera reticulata, Citrus paradisi, Lavandula hybrida and Salvia sclarea Against Immature and Adult Stages of Ctenocephalides felis felis. Acta Parasitol 2024:10.1007/s11686-024-00874-3. [PMID: 39147955 DOI: 10.1007/s11686-024-00874-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 07/30/2024] [Indexed: 08/17/2024]
Abstract
PURPOSE The flea Ctenocephalides felis (Siphonaptera: Pulicidae), parasitizes dogs and cats globally, acting as a vector for various pathogens affecting both animals and humans. Growing interest in environmentally friendly, plant-based products prompted this study. The aim of the study was to determine the chemical composition of essential oils (EOs) from Copaifera reticulata, Citrus paradisi, Lavandula hybrida and Salvia sclarea, assessing their insecticidal and repellent properties, determining lethal concentrations (LC50 and LC90), and evaluating residual efficacy in vitro against Ctenocephalides felis felis. METHODS Gas Chromatography with Flame Ionization Detector analyzed EO composition. In vitro tests involved preparing EO solutions at various concentrations. Ten specimens from each life stage (egg, larva, pupa, adult) were used for insecticidal activity assessment. Adulticidal activity was assessed using 10 cm2 filter paper strip, each treated with 0.200 mL of the test solution. Immature stages activities were evaluated using 23.76 cm2 discs of the same filter paper, each treated with 0.470 mL of the test solution. Mortality percentage was calculated using (number of dead insects × 100) / number of incubated insects. Probit analysis calculated LC50 values with a 95% confidence interval. RESULTS Major EO constituents were β-caryophyllene (EOCR), linalool (EOLH), linalyl acetate (EOSS), and limonene (EOCP). LC50 values were obtained for all stages except for the essential oil of C. paradisi. All oils showed repellent activity at 800 μg/cm2. OECR exhibited greater residual efficacy. CONCLUSION Each EO demonstrated superior insecticidal activity against specific C. felis felis stages.
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Affiliation(s)
- Emily Andressa Santos Lima
- Laboratory of Experimental Chemotherapy in Veterinary Parasitology (LQEPV), Department of Animal Parasitology, Institute of Veterinary Medicine, Federal Rural University of Rio de Janeiro, BR 465, Km 7, Seropedica, Rio de Janeiro, 23890-000, Brazil
| | - Diefrey Ribeiro Campos
- Laboratory of Experimental Chemotherapy in Veterinary Parasitology (LQEPV), Department of Animal Parasitology, Institute of Veterinary Medicine, Federal Rural University of Rio de Janeiro, BR 465, Km 7, Seropedica, Rio de Janeiro, 23890-000, Brazil
| | - Eduardo Fellipe Melo Santos Soares
- Laboratory of Experimental Chemotherapy in Veterinary Parasitology (LQEPV), Department of Animal Parasitology, Institute of Veterinary Medicine, Federal Rural University of Rio de Janeiro, BR 465, Km 7, Seropedica, Rio de Janeiro, 23890-000, Brazil.
| | - Anna Beatriz Ribeiro Fortunato
- Laboratory of Experimental Chemotherapy in Veterinary Parasitology (LQEPV), Department of Animal Parasitology, Institute of Veterinary Medicine, Federal Rural University of Rio de Janeiro, BR 465, Km 7, Seropedica, Rio de Janeiro, 23890-000, Brazil
| | - Taynara Monsores E Silva
- Laboratory of Experimental Chemotherapy in Veterinary Parasitology (LQEPV), Department of Animal Parasitology, Institute of Veterinary Medicine, Federal Rural University of Rio de Janeiro, BR 465, Km 7, Seropedica, Rio de Janeiro, 23890-000, Brazil
| | - Nayana de Figueiredo Pereira
- Laboratory of Pharmacognosy and Bioactive Natural, Pharmaceutical Sciences Department, Health and Biological Science Institute, Federal Rural University of Rio de Janeiro, BR 465, Km 7, Seropedica, Rio de Janeiro, 23890-000, Brazil
| | - Douglas Siqueira de Almeida Chaves
- Laboratory of Pharmacognosy and Bioactive Natural, Pharmaceutical Sciences Department, Health and Biological Science Institute, Federal Rural University of Rio de Janeiro, BR 465, Km 7, Seropedica, Rio de Janeiro, 23890-000, Brazil
| | - Yara Peluso Cid
- Pharmaceutical Sciences Department, Health and Biological Science Institute, Federal Rural University of Rio de Janeiro, BR 465, Km 7, Seropedica, Rio de Janeiro, 23890-000, Brazil
| | - Katherina Coumendouros
- Laboratory of Experimental Chemotherapy in Veterinary Parasitology (LQEPV), Department of Animal Parasitology, Institute of Veterinary Medicine, Federal Rural University of Rio de Janeiro, BR 465, Km 7, Seropedica, Rio de Janeiro, 23890-000, Brazil
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Cheran E, Sharmila Rahale C, Divyabharathi P, Viswanathan C, Narayanan L. Corn cob nanocellulose packaging for increasing the shelf life of food products. Int J Biol Macromol 2024; 268:131403. [PMID: 38614176 DOI: 10.1016/j.ijbiomac.2024.131403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/15/2024]
Abstract
Studies were carried out to develop eco-friendly Packaging material for the extended shelf-life of food products. The current study sought to improve the coated bioactive film's hydrophobicity and antimicrobial properties by preparing active packaging based on biodegradable Poly Lactic Acid (PLA) containing 1 wt% Nanocellulose (NC) and various loadings of essential oil-prepared nanocomposites. Nanocellulose (NC) from Maize Cob was used as filler in the synthesis of nanopolymers enriched with Thyme oil, Cinnamon oil, clove oil, and Rosemary oil. Characterization of nanopolymer-coated bags and their effect on enhancing the shelf-life of food products in different temperature conditions was also studied. The fabricated nanocomposite and nanocellulose were characterized using FTIR, SEM, XRD, Contact angle, TGA, and Tensile mechanical properties. The fabricated nanocomposite-coated paper cum bag shows good hydrophobic properties as well as antimicrobial and insecticidal properties. The results showed that adding essential oils and dispersing nanocellulose to the PLA matrix strengthened its mechanical qualities as well as its efficacy for biodegradation and antimicrobial properties. The current work provides extremely promising materials for future applications in food packaging applications using sustainable nanocomposite-based biodegradable and antimicrobial coated paper cum bags.
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Affiliation(s)
- E Cheran
- Centre For Agricultural Nanotechnology, Directorate of Natural Resource Management, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - C Sharmila Rahale
- Centre For Agricultural Nanotechnology, Directorate of Natural Resource Management, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India.
| | - P Divyabharathi
- Centre For Agricultural Nanotechnology, Directorate of Natural Resource Management, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - C Viswanathan
- Department of Nano Science & Technology, Bharathiar University, Coimbatore, Tamil Nadu, India
| | - Lakshmi Narayanan
- Department of Nano Science & Technology, Bharathiar University, Coimbatore, Tamil Nadu, India
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Gospodarek J, Krajewska A, Paśmionka IB. Contact and Gastric Effect of Peppermint Oil on Selected Pests and Aphid Predator Harmonia axyridis Pallas. Molecules 2023; 28:4647. [PMID: 37375201 DOI: 10.3390/molecules28124647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/31/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Peppermint essential oil (EO) has been extensively tested to date in reducing stored-product insects and insects of public health concern with very promising results, while only a few studies target important crop pests. There is also very little information on the effects of peppermint EO on non-target organisms, especially concerning contact and gastric effects at the same time. The goal of the investigation was the determination of the effect of peppermint EO on the mortality of Aphis fabae Scop.; the feeding intensity and weight gain of Leptinotarsa decemlineata Say. larvae; and the mortality and voracity of non-target organism Harmonia axyridis Pallas larvae. Our research indicates promising use for the M. piperita EO against aphids and young larvae (second instars) of the Colorado potato beetle. M. piperita EO showed good insecticidal efficacy against A. fabae with LC50 = 0.5442% for nymphs and 0.3768% for wingless females after 6 h. Over time, the LC50 value decreased. For the second instar larvae of L. decemlineata, the LC50 values were 0.6278%, 0.3449%, and 0.2020% after 1, 2, and 3 days of the experiment, respectively. On the other hand, older larvae (fourth instar) were characterized by significant resistance to the tested oil concentrations with LC50 value = 0.7289% after 96 h. M. piperita oil (contact and gastric effects) at a concentration of 0.5% was found to be toxic to young larvae (2 and 5 days old) of H. axyridis, while EO at a concentration of 1% was toxic to 8-day-old larvae. Thus, for the sake of ladybug safety, it would be advisable to use EO from M. piperita against aphids at concentrations lower than 0.5%.
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Affiliation(s)
- Janina Gospodarek
- Department of Microbiology and Biomonitoring, University of Agriculture, al. A. Mickiewicza 21, 31-120 Krakow, Poland
| | - Agnieszka Krajewska
- Department of Biotechnology and Food Science, Lodz University of Technology, 90-530 Lodz, Poland
| | - Iwona B Paśmionka
- Department of Microbiology and Biomonitoring, University of Agriculture, al. A. Mickiewicza 21, 31-120 Krakow, Poland
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Collares LJ, Turchen LM, Guedes RNC. Research Trends, Biases, and Gaps in Phytochemicals as Insecticides: Literature Survey and Meta-Analysis. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12020318. [PMID: 36679031 PMCID: PMC9866902 DOI: 10.3390/plants12020318] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/03/2023] [Accepted: 01/06/2023] [Indexed: 05/26/2023]
Abstract
A 76-year literature survey and meta-analyses were carried out to recognize the trends, biases, and knowledge gaps of studies focusing on major groups of compounds of botanical origin, or phytochemicals, as insecticides. The survey found that the main phytochemicals prospected as insecticides belong to the following major chemical groups: terpenoids, terpenes, and carbonyl, all of which were tested, mainly against beetles (Coleoptera), caterpillars (i.e., larvae of Lepidoptera), and mosquitoes and other flies (i.e., Diptera). These studies are burgeoning at an exponential rate, with an evident focus on mortality endpoint estimates, but they are also neglecting sublethal assessments. China and India in Asia, as well as Brazil in the Americas, were responsible for most studies. The majority of the papers used stored grain insects as experimental models, which limits the applicability and representativeness of the findings. As a result, the main modes of exposure tested were fumigation and contact, which leads to the prevalence of estimates of lethal concentration in these studies. Therefore, a broader range of insect species deserves testing, with suitable modes of exposure identifying and characterizing the main molecules responsible for the insecticidal activity, which is seldom performed. Attention to these needs will circumvent current biases and allow the recognition of the main patterns of association between the origin and structure of phytochemicals and their insecticidal effects.
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Affiliation(s)
- Lara J. Collares
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa 3657-900, MG, Brazil
- Neo Ventures, Rua Alameda Vicente Pinzon, 54, 9° Andar, Vila Olímpia, São Paulo 04547-130, SP, Brazil
| | - Leonardo M. Turchen
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa 3657-900, MG, Brazil
| | - Raul Narciso C. Guedes
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa 3657-900, MG, Brazil
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Jesser E, Castillo L, Alonso Y, Urrutia R, Murray A, Domini C, Werdin-González J. Development of active biodegradable films based on chitosan and essential oil to prevent infestation of Plodia interpunctella (Lepidoptera: Pyralidae). Food Packag Shelf Life 2022. [DOI: 10.1016/j.fpsl.2022.100999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cagáň Ľ, Apacsová Fusková M, Hlávková D, Skoková Habuštová O. Essential Oils: Useful Tools in Storage-Pest Management. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11223077. [PMID: 36432806 PMCID: PMC9692832 DOI: 10.3390/plants11223077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/08/2022] [Accepted: 11/11/2022] [Indexed: 05/31/2023]
Abstract
This study aimed to verify the level of repellent and mortality effect of two chemical substances (DEET and 2-undecanone) and seven essential oils (EOs), Allium sativum, Artemisia annua, Ocimum basilicum, Lavandula angustifolia, Eucalyptus globulus, Pinus sylvestris, and Curcuma longa. The storage pests Tribolium confusum, Tenebrio molitor, and Acanthoscelides obtectus were exposed to various concentrations in an olfactometer-and-mortality test. The effects were recorded 24-48-72 h after the treatments were applied. A. sativum, E. globulus, and L. augustifolia were found to have significant repellence effects. A substantial lethal effect was observed for A. sativum, E. globulus, and O. basilicum. We also found that even if the most efficient EOs were diluted to low concentrations, they still produced repellent and mortality effects. The presented results indicate that A. sativum and O. basilicum were the most effective against T. confusum and T. molitor; simultaneously, L. angustifolia and C. longa showed high activity against A. obtectus. All of these efficient EOs could be applied as effective bio-control agents in various stored conditions.
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Affiliation(s)
- Ľudovít Cagáň
- Department of Plant Protection, Slovak University of Agriculture, 949 76 Nitra, Slovakia
| | - Miroslava Apacsová Fusková
- National Agricultural and Food Centre, Research Institute of Plant Production, 921 01 Piešťany, Slovakia
| | - Daniela Hlávková
- Biology Centre, Czech Academy of Sciences, Institute of Entomology, 370 05 České Budějovice, Czech Republic
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
| | - Oxana Skoková Habuštová
- Biology Centre, Czech Academy of Sciences, Institute of Entomology, 370 05 České Budějovice, Czech Republic
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Essential Oils from Cameroonian Aromatic Plants as Effective Insecticides against Mosquitoes, Houseflies, and Moths. PLANTS 2022; 11:plants11182353. [PMID: 36145754 PMCID: PMC9505984 DOI: 10.3390/plants11182353] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 12/04/2022]
Abstract
Recently, spices have attracted the attention of scientists and agrochemical companies for their potential as insecticidal and acaricidal agents, and even as repellents to replace synthetic compounds that are labeled with detrimental impacts on environment and human and animal health. In this framework, the aim of this study was to evaluate the insecticidal potential of the essential oils (EOs) obtained from three Cameroonian aromatic plants, namely Monodora myristica (Gaertn.) Dunal, Xylopia aethiopica (Dunal) A. Rich., and Aframomum citratum (J. Pereira) K. Schum. They were produced by hydrodistillation, with yields of 3.84, 4.89, and 0.85%, respectively. The chemical composition was evaluated by GC-MS analysis. The EOs and their major constituents (i.e., geraniol, sabinene, α-pinene, p-cymene, α-phellandrene, and β-pinene) were tested against the polyphagous moth pest, i.e., Spodoptera littoralis (Boisd.), the common housefly, Musca domestica L., and the filariasis and arbovirus mosquito vector, Culex quinquefasciatus Say. Our results showed that M. myristica and X. aethiopica EOs were the most effective against M. domestica adults, being effective on both males (22.1 µg adult−1) and females (LD50: 29.1 µg adult−1). The M. myristica EO and geraniol showed the highest toxicity on S. littoralis, with LD50(90) values of 29.3 (123.5) and 25.3 (83.2) µg larva−1, respectively. Last, the EOs from M. myristica and X. aethiopica, as well as the major constituents p-cymene and α-phellandrene, were the most toxic against C. quinquefasciatus larvae. The selected EOs may potentially lead to the production of cheap and effective botanical insecticides for African smallholders, although the development of effective formulations, a safety evaluation, and an in-depth study of their efficacy on different insect species are needed.
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Ovicidal and repellent activities of several plant essential oils against Periplaneta americana L. and enhanced activities from their combined formulation. Sci Rep 2022; 12:12070. [PMID: 35840624 PMCID: PMC9287551 DOI: 10.1038/s41598-022-16386-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 07/08/2022] [Indexed: 01/13/2023] Open
Abstract
Natural ovicidal and repellent agents against Periplaneta americana L. are urgently needed, and plant essential oils (EOs) can assume this role quite readily. In this study, ovicidal and repellent activities against Periplaneta americana of EOs from Cymbopogon citratus (Stapf.), Cinnamomum verum (J. Presl.), Eucalyptus globulus (Labill.), Illicium verum (Hook.f.), and Zanthoxylum limonella (Alston) in soybean oil and in ethyl alcohol were determined by topical and dual-choice assays, as well as 10% cypermethrin and a combined formulation of 5% C. verum EO + 5% I. verum EO. Cypermethrin at 10% provided the highest toxicity (100% inhibition rate) against the eggs, but only slightly higher than that (99.3%) provided by the combined EO formulation, while the highest repellent activity against the adults was provided by the combined formulation (89.5% repelled cockroaches at 48 h after treatment). In addition, all EO formulations in soybean oil provided higher ovicidal and repellent activities than those in ethyl alcohol. To conclude, the combined EO formulation in soybean oil can replace cypermethrin because their efficacy was nearly equivalent, but the combination should be much safer to use.
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Abenaim L, Mandoli A, Venturi F, Bedini S, Conti B. Evaluation of a quasi-dimeric eugenol derivative as repellent against the stored grain insect pest Sitophilus oryzae (Coleoptera Curculionidae). PEST MANAGEMENT SCIENCE 2022; 78:2588-2595. [PMID: 35340112 PMCID: PMC9321561 DOI: 10.1002/ps.6890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/22/2022] [Accepted: 03/27/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Essential oils (EOs) and their chemical components are often proposed as an alternative to synthetic pesticides for pest control of foodstuff insect pests. However, their low persistence and strong, spicy odour, make them poorly suitable for use to protect food. Modification of the EOs components molecules increases their molecular weight and reduce their volatility. However, the effectiveness of such modified molecules has, so far, not been tested against stored food insect pests. In this study, the intensity and the duration of the repellence against the insect pest Sitophilus oryzae of a recently synthesized quasi-dimeric eugenol derivative (ED) (C18 H20 O4 ) were compared to those of eugenol and three eugenol related compounds. The hypothesis tested was that by its higher molecular weight and two functional groups the ED would overcome the low persistence and strong and spicy odour drawback of eugenol without compromising the repellence against insects. RESULTS The insect behavioural tests showed a greater repellence and persistence of ED than eugenol and the three eugenol related compounds against S. oryzae. The sensory analysis of ED by panel test indicated that ED is significantly less odorous than eugenol without any spicy nor balsamic nuances in its smell profile. CONCLUSIONS Because of its high repellence against insects and its low smell intensity for humans, ED could represent a valid repellent for the control of foodstuffs insect pests. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Linda Abenaim
- Department of Agriculture, Food and EnvironmentUniversity of PisaPisaItaly
| | - Alessandro Mandoli
- Department of Chemistry and Industrial ChemistryUniversity of PisaPisaItaly
| | - Francesca Venturi
- Department of Agriculture, Food and EnvironmentUniversity of PisaPisaItaly
| | - Stefano Bedini
- Department of Agriculture, Food and EnvironmentUniversity of PisaPisaItaly
| | - Barbara Conti
- Department of Agriculture, Food and EnvironmentUniversity of PisaPisaItaly
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Functional Coatings by Natural and Synthetic Agents for Insect Control and Their Applications. COATINGS 2022. [DOI: 10.3390/coatings12040476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Insect repellent textiles offer protection against disease-causing vectors such as mosquitoes, flies, and ticks. Protection is based on the incorporation of insect repellent compounds present in plant oil derivatives or synthetic oils. The effectiveness and application of natural insect repellents such as citronella grass, lemongrass, rosemary, peppermint, holy basil, tea tree, neem, lavender, thyme, lemon eucalyptus, clove, and cinnamon oils, as well as synthetic compounds permethrin, allethrin, malathion, DEET, DETA, IR3535, and picaridin, are compared here. The insect repellent and insecticidal effectiveness of natural compounds in their pure form are very low due to their high volatility. The effectiveness has been greatly improved through slow-release systems such as encapsulation of the essential oils and is comparable to synthetic compounds used for insect control purposes. Due to the lasting toxicity of synthetic compounds to humans and the environment, the use of natural compounds should become a more preferred method of insect control.
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Stejskal V, Vendl T, Aulicky R, Athanassiou C. Synthetic and Natural Insecticides: Gas, Liquid, Gel and Solid Formulations for Stored-Product and Food-Industry Pest Control. INSECTS 2021; 12:590. [PMID: 34209742 PMCID: PMC8305526 DOI: 10.3390/insects12070590] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 06/23/2021] [Indexed: 12/26/2022]
Abstract
The selective application of insecticides is one of the cornerstones of integrated pest management (IPM) and management strategies for pest resistance to insecticides. The present work provides a comprehensive overview of the traditional and new methods for the application of gas, liquid, gel, and solid physical insecticide formulations to control stored-product and food industry urban pests from the taxa Acarina, Blattodea, Coleoptera, Diptera, Hymenoptera, Lepidoptera, Psocoptera, and Zygentoma. Various definitions and concepts historically and currently used for various pesticide application formulations and methods are also described. This review demonstrates that new technological advances have sparked renewed research interest in the optimization of conventional methods such as insecticide aerosols, sprays, fumigants, and inert gases. Insect growth regulators/disruptors (IGRs/IGDs) are increasingly employed in baits, aerosols, residual treatments, and as spray-residual protectants for long-term stored-grain protection. Insecticide-impregnated hypoxic multilayer bags have been proven to be one of the most promising low-cost and safe methods for hermetic grain storage in developing countries. Insecticide-impregnated netting and food baits were originally developed for the control of urban/medical pests and have been recognized as an innovative technology for the protection of stored commodities. New biodegradable acaricide gel coatings and nets have been suggested for the protection of ham meat. Tablets and satchels represent a new approach for the application of botanicals. Many emerging technologies can be found in the form of impregnated protective packaging (insect growth regulators/disruptors (IGRs/IGDs), natural repellents), pheromone-based attracticides, electrostatic dust or sprays, nanoparticles, edible artificial sweeteners, hydrogels, inert baits with synthetic attractants, biodegradable encapsulations of active ingredients, and cyanogenic protective grain coatings. Smart pest control technologies based on RNA-based gene silencing compounds incorporated into food baits stand at the forefront of current strategic research. Inert gases and dust (diatomaceous earth) are positive examples of alternatives to synthetic pesticide products, for which methods of application and their integration with other methods have been proposed and implemented in practice. Although many promising laboratory studies have been conducted on the biological activity of natural botanical insecticides, published studies demonstrating their effective industrial field usage in grain stores and food production facilities are scarce. This review shows that the current problems associated with the application of some natural botanical insecticides (e.g., sorption, stability, field efficacy, and smell) to some extent echo problems that were frequently encountered and addressed almost 100 years ago during the transition from ancient to modern classical chemical pest control methods.
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Affiliation(s)
- Vaclav Stejskal
- Crop Research Institute, Drnovska 507/73, 16106 Prague, Czech Republic; (T.V.); (R.A.)
| | - Tomas Vendl
- Crop Research Institute, Drnovska 507/73, 16106 Prague, Czech Republic; (T.V.); (R.A.)
| | - Radek Aulicky
- Crop Research Institute, Drnovska 507/73, 16106 Prague, Czech Republic; (T.V.); (R.A.)
| | - Christos Athanassiou
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Phytokou Str., 38446 Nea Ionia, Greece;
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Faleiro ML, Miguel G. Antimicrobial and Antioxidant Activities of Natural Compounds: Enhance the Safety and Quality of Food. Foods 2020; 9:foods9091145. [PMID: 32825221 PMCID: PMC7555647 DOI: 10.3390/foods9091145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 08/14/2020] [Accepted: 08/18/2020] [Indexed: 12/11/2022] Open
Affiliation(s)
- Maria Leonor Faleiro
- Algarve Biomedical Center, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
- Correspondence:
| | - Graça Miguel
- Mediterranean Institute for Agriculture, Environment and Development, Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal;
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