Formulation of Ethyl Cellulose Nanoparticles Encapsulated with Osthole Provides Long-Lasting Plant Protection against a Major Pest Mite

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

The broader use of botanical pesticides has been limited by shorter residual activity on plants, slower onset action, and higher costs compared with conventional pesticides. These challenges could be overcome the development simple, cost-effective, long-lasting preventive nanocomposites for In this study, we successfully developed a low-cost ethyl cellulose (EC)-based delivery system pesticide osthole (OST), designed to provide extended protection against Tetranychus urticae infestations. A comparative analysis three (graphene oxide (GO)-OST, EC-OST, chitosan (CS)-OST) revealed that EC-OST exhibited superior thermal stability, UV resistance, controlled release OST payload, strong acaricidal activity. degradation leaf surfaces was reduced encapsulation in EC, while its penetration into plant tissues improved. When applied leaves, an increase T. mortality, reduction reproduction egg adhesion, impairment feeding behavior through searching times were observed. peak occurrence infestation delayed 10 days following application reducing damage protecting plants more than 20 days. This nanoinsecticide allows low-frequency application, farmers' production costs, increasing profitability, thereby offering great potential promoting protection.

Language: Английский

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Controlled release of papain encapsulated in chitosan hydrogels and study of nematicidal action on Panagrellus sp.

Next Materials, Journal Year: 2025, Volume and Issue: 8, P. 100567 - 100567

Published: March 4, 2025

Language: Английский

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Optimizing surfactin yield in Bacillus velezensis BN to enhance biocontrol efficacy and rhizosphere colonization

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: March 5, 2025

Surfactins, a class of lipopeptide biosurfactants secreted by plant growth-promoting rhizobacteria (PGPR), have garnered significant attention due to their dual functionality in promoting growth and controlling diseases. Their potential as biopesticides is underscored unique physicochemical properties biological activities. However, the practical application surfactin currently limited its low yield natural strains. This study aimed optimize culture conditions for Bacillus velezensis BN, strain with exceptional biocontrol properties, enhance yield. Critical factors, including nitrogen sources amino acid supplementation, were systematically investigated determine impact on production. The revealed that supplementation pivotal factors influencing Compared baseline, these resulted remarkable 5.94-fold increase Furthermore, positive correlation was established between efficacy. Enhanced associated improved antifungal activity, biofilm formation, rhizosphere colonization capacity B. BN potato plantlets. These findings provide novel insights into establish scientific foundation development innovative eco-friendly agents suitable agricultural use. results demonstrate optimizing can significantly efficacy, thereby highlighting sustainable practices.

Language: Английский

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PGPR and nutrient consortia promoted cotton growth, antioxidant enzymes, and mineral uptake by suppressing sooty mold in arid climate

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: March 20, 2025

Introduction Cotton ( Gossypium hirsutum L.) plays a vital role in Pakistan’s economy, providing significant employment opportunities and supporting the country’s textile industry. However, cotton productivity is severely impacted by pests diseases, such as black spots caused sooty mold, posing critical challenges to sustainable agriculture. This study investigates novel integration of plant growth-promoting rhizobacteria (PGPR) with recommended NPK fertilizers micronutrients enhance growth, yield, disease resistance, post-harvest soil properties. Methodology A consortium Bacillus megaterium (ZR19), Paenibacillus polymyxa (IA7), sp. (IA16) were evaluated under six treatments: control (T1), PGPR (T2), (T3), + (T4), (T5), (T6). Results The results depicted increase antioxidant activities 19% superoxide dismutase (SOD), 29% peroxidase (POX), 28% (POD), 14% catalase (CAT) activity T6 compared control. Similarly, growth parameters substantially improved root length (39%), shoot (19%), biomass up 31 20%, respectively, T6. Moreover, yield attributes like single boll weight lint percentage also enhanced 32 13%, integration. In contrast, demonstrated considerable biocontrol potential against incidence was reduced 68% cotton, index 75%, efficacy reached 75%. biological chemical properties, including bacterial populations, microbial nitrogen, organic matter, essential nutrient availability. Discussion So, these findings witnessed dual behavior strains balanced nutrition can lead us development an effective biopesticide cum biofertilizer for production arid conditions combating mold effectively.

Language: Английский

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Advancing sustainable agriculture: the potential of seaweed-derived bio pesticides from marine biomass

Bioresources and Bioprocessing, Journal Year: 2025, Volume and Issue: 12(1)

Published: March 22, 2025

Abstract The exploitation of marine biomass, particularly seaweeds, presents significant opportunities for sustainable biopesticide production. Seaweeds, or macroalgae are diverse photosynthetic organisms found in environments, rich bioactive compounds such as terpenoids, polyphenols, and sulphated polysaccharides. These exhibit potent pesticide properties, offering environmentally friendly alternatives to conventional chemical pesticides. biopesticides derived from seaweeds biodegradable, low toxicity non-target organisms, align with the principles environmental sustainability. growing demand organic agricultural products further underscores economic potential seaweed-based biopesticides. However, challenges scalability production, extraction efficiency, standardization bioactivity must be addressed realize this fully. Advances biorefinery approaches, technologies, formulation techniques critical overcoming these challenges. Additionally, ongoing research into synergistic effects different seaweed development innovative delivery systems will enhance efficacy commercial viability seaweed-derived This review highlights promising role emphasizing need continued interdisciplinary collaboration integrate natural practices. Graphical

Language: Английский

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Dynamic Agricultural Pest Classification Using Enhanced SAO-CNN and Swarm Intelligence Optimization for UAVs

International Journal of Cognitive Computing in Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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Integrating Biopesticides and Botanicals for Sustainable and Eco-Friendly Crop Protection Strategies

Advances in environmental engineering and green technologies book series, Journal Year: 2024, Volume and Issue: unknown, P. 309 - 330

Published: June 28, 2024

This chapter explores the integration of biopesticides and botanical extracts to enhance sustainable crop protection, reducing environmental harm. Biopesticides, sourced from microorganisms, plant extracts, semi-chemicals offer advantages over synthetics, with lower toxicity reduced resistance risk. Botanical prized for their antimicrobial properties, have gained effectiveness due extraction advances. provides an overview current state research on botanicals, modes action, benefits, limitations, potential synergistic interactions when combined conventional or other biological control agents Challenges include inconsistent performance regulatory hurdles, but such integrated methods promote biodiversity ecosystem health. The highlights challenges like limited availability hurdles in implementing these alternatives. Integrated aim reduce traditional pesticides' negative impacts advance sustainability by promoting

Language: Английский

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RNAi-mediated glucose transporter 4 (Glut4) silencing inhibits ovarian development and enhances deltamethrin-treated energy depletion in Locusta migratoria

Pesticide Biochemistry and Physiology, Journal Year: 2024, Volume and Issue: 203, P. 106014 - 106014

Published: July 6, 2024

Energy metabolism is essential for insect development, reproduction and detoxification. Insects often reallocate energy resources to manage external stress, balancing the demands of detoxification reproduction. Glucose transport 4 (Glut4), a glucose transporter, involved in lipid metabolism. However, specific molecular mechanism Glut4 reproduction, its role response insecticide-induced oxidative stress remain unclear. In this study, LmGlut4 was identified analyzed Locusta migratoria. Silencing significantly reduced vitellogenin (Vg) biosynthesis fat body Vg absorption by oocytes, ultimately hindering ovarian development oocyte maturation. Knockdown also inhibited key hormones, such as juvenile hormone (JH), 20-hydroxyecdysone (20E) insulin. Furthermore, knockdown led triglyceride (TG) glycogen content ovary, well decreased capacity trehalose adipocytes. Additionally, dsLmGlut4-treated locusts showed heightened sensitivity deltamethrin, leading increased depletion during This study sheds light on biological function ovary provides potential target genes exploring pest management strategies.

Language: Английский

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Microbial pesticides: challenges and future perspectives for non-target organism testing

Environmental Sciences Europe, Journal Year: 2024, Volume and Issue: 36(1)

Published: Dec. 9, 2024

Abstract Biopesticides have received increasing global attention as environmentally friendly alternatives, allowing for more sustainable pest and disease control. In order to be registered or authorized use, safety studies need submitted regulatory risk assessments. However, it has been frequently reported that, in particular, microbial pesticides a number of challenges when comes non-target organism testing. For instance, study results from such tests are often difficult interpret they lack consistency accuracy. Reasons this can found firstly the heterogeneity resulting complexity microbe-based comprising different taxonomic groups (e.g., bacteria, fungi, viruses), secondly appropriate guidance testing these agents considering their unique biological properties. The present review gives an overview available test guidelines by reflecting current background area environmental assessment describes general specific issues associated with on terrestrial vertebrates, aquatic organisms, bees, arthropods other than meso- macro-organisms soil, plants. Proposals improvement existing documents provided further discussed.

Language: Английский

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Development of Natural Fungicidal Agricultural Defensives Using Microbial Glycolipid and Vegetable Oil Blends

Surfaces, Journal Year: 2024, Volume and Issue: 7(4), P. 879 - 897

Published: Oct. 16, 2024

The use of pesticides causes significant environmental problems, which drives the search for natural and non-toxic alternatives. In this study, a glycolipid biosurfactant (BS), produced by yeast Starmerella bombicola ATCC 22214, was utilized as an active ingredient in agricultural defensive blends. mixtures were tested their fungicidal potential against phytopathogenic fungi isolated from fruits such papaya, orange, banana, demonstrating strong inhibition fungal growth. genera Penicillium, Colletotrichum, Aspergillus pathogens present deterioration used experiment. fermenter, yielding 10 g/L reducing surface tension to 31.56 mN/m, with critical micelle concentration (CMC) 366 mg/L. Blends BS oleic acid (T1) lemongrass oil (T2) found be effective controlling fungi. Additionally, phytotoxicity these formulations assessed using Cucumis anguria (gherkin) seeds, where blend castor (T4) showed best performance, promoting seed germination. These results indicate alternatives control plants application sustainable systems.

Language: Английский

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