Journal of Stored Products Research最新文献

{"title":"Combined effect of diatomaceous earth and two different insecticides to control Callosobruchus maculatus","authors":"Sara Ashagheh Bashloo ,&nbsp;Masumeh Ziaee ,&nbsp;Fariba Sohrabi","doi":"10.1016/j.jspr.2025.102944","DOIUrl":"10.1016/j.jspr.2025.102944","url":null,"abstract":"<div><div>The bean weevil, <em>Callosobruchus maculatus</em> (F.) (Coleoptera: Chrysomelidae), is a significant pest affecting the storage and production of legumes, particularly beans. This study evaluates the efficacy of diatomaceous earth (DE) formulations, both alone and in combination with imidacloprid and deltamethrin, utilized at a ratio of 0.05 %, on the mortality and progeny production of <em>C. maculatus.</em> The research further assessed the impact of these formulations on oviposition inhibition, egg hatching rates, and prevention of adult emergence in cowpeas. DE formulations were tested at the doses of 500 and 1000 mg/kg, with six replicates for each treatment. The lowest lethal time (LT₅₀) was recorded for the Dryasil DE formulation combined with imidacloprid at 4.695 days. Mortality rates of <em>C. maculatus</em> adults increased with prolonged exposure and higher doses. The control and talcum powder treatments recorded the highest egg-laying numbers, with 21 and 19.16 eggs, respectively. In contrast, at 1000 mg/kg, the lowest egg counts were observed in the Dryasil + imidacloprid (7.33), Dryasil + deltamethrin (8.66), and imidacloprid (9) treatments. The highest oviposition inhibition rates at this dose were noted for Dryasil + imidacloprid (65.08 %), Dryasil + deltamethrin (58.73 %), and imidacloprid (57.14 %). Additionally, the lowest adult emergence percentage (21.67 %) and the most extended developmental period from egg to adult (21.92 days) occurred in the Dryasil + imidacloprid treatment. Weight loss due to <em>C. maculatus</em> was also evaluated in these treatments, with the lowest percentage of weight loss (5.37 %) in the Dryasil + imidacloprid treatment. These findings suggest that DE formulations, particularly when combined with imidacloprid, are effective in managing <em>C. maculatus</em> infestations in cowpeas, offering a potential strategy for pest control in legume storage.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102944"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of ethyl formate fumigation for controlling Tribolium castaneum and Rhyzopertha dominica in stored wheat and maize","authors":"Junyu He,&nbsp;Zhonghao He,&nbsp;Yuxiao Fan,&nbsp;Peian Tang,&nbsp;Xue Dong","doi":"10.1016/j.jspr.2026.102948","DOIUrl":"10.1016/j.jspr.2026.102948","url":null,"abstract":"<div><div>Postharvest losses caused by insect infestation remain a major threat to grain security, particularly in long-term storage systems. Ethyl formate (EF) is a promising alternative fumigant to phosphine and methyl bromide, but its efficacy is strongly influenced by storage conditions and grain type. In this study, we evaluated and optimized EF fumigation against adults of <em>Tribolium castaneum</em> and <em>Rhyzopertha dominica</em> in stored wheat and maize. Single-factor experiments were conducted to examine the effects of temperature (15–35 °C), grain moisture content (12–16 %) and EF concentration (50–90 μL/L) on insect mortality. Mortality decreased significantly with increasing temperature and grain moisture content, but increased with EF concentration in both grain types. <em>R. dominica</em> was more susceptible to EF than <em>T. castaneum</em>, and insect mortality was generally higher in wheat than in maize. Based on these results, a three-factor, three-level Box–Behnken design was applied to develop response surface models for each pest-grain combination. EF concentration was the dominant factor in all models, followed by grain moisture and temperature. The models showed good fit (R² = 0.93–0.97) and predicted optimal conditions of approximately 16–18 °C, 12 % grain moisture content and 85–90 μL/L EF. Under these conditions, validation trials achieved 97.8–100 % mortality, with relative errors ≤2.22 %. These findings demonstrated that EF can provide effective control of major stored-grain insects when application parameters are tailored to grain type and storage environment, and offer a quantitative basis for optimising EF fumigation in practice.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102948"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145976760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A lightweight vision based method for pre storage potato sorting in an automatic grading system","authors":"Danyang Lv ,&nbsp;Mengdi Cheng ,&nbsp;Ang Zhao ,&nbsp;Ranbing Yang ,&nbsp;Yongfei Pan ,&nbsp;Shiting Lv ,&nbsp;Jian Zhang ,&nbsp;Tao Wang","doi":"10.1016/j.jspr.2026.102985","DOIUrl":"10.1016/j.jspr.2026.102985","url":null,"abstract":"<div><div>Accurate potato sorting is required prior to storage. However conventional systems designed for indoor environments demonstrate limited accuracy and robustness when applied to complex post-harvest conditions. To address this issue, this paper proposes a lightweight end-to-end object detection model, termed WTDE-DETR. Built upon the real-time detection transformer (RT-DETR) framework, the proposed model incorporates a Wavelet-Transform-Enhanced Feature Network (WTFNet) to strengthen multi-scale representation and frequency-domain feature modeling. During the feature interaction stage, an Adaptive Interaction Feature Integration with Dynamic Mixed Layer (AIFI-DML) module is introduced to achieve collaborative optimization of global attention and adaptive local texture modeling. Furthermore, a Decoupled Adaptive Feature Block (DAFB) is designed in the cross-scale fusion stage to enhance multi-scale feature representation capability. Experimental results demonstrate that WTDE-DETR achieves an <span><span><span>[email protected]</span></span><svg><path></path></svg></span> of 95.0% on the test set, representing an improvement of approximately 2.6 percentage points over the baseline. Meanwhile, the number of model parameters is reduced by 25.6%, and the computational cost is decreased to 40.5 GFLOPs, significantly lowering model complexity while maintaining high detection accuracy. On an embedded platform, the proposed model achieves real-time inference at 20 FPS. Field experiments further indicate that, under natural illumination conditions in the morning, noon, and evening, as well as across different conveyor speed ranges, the overall sorting qualification rate consistently exceeds 93.5%. These results verify the stability, robustness, and engineering applicability of WTDE-DETR in complex and dynamic near-field sorting scenarios immediately after harvesting.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102985"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Protection of stored maize hybrids against Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) using enhanced diatomaceous earth","authors":"Anita Liška ,&nbsp;Vlatka Rozman ,&nbsp;Renata Baličević ,&nbsp;Ivica Beraković ,&nbsp;Ivan Paponja","doi":"10.1016/j.jspr.2026.102970","DOIUrl":"10.1016/j.jspr.2026.102970","url":null,"abstract":"<div><div>One of the most promising alternatives to synthetic pesticides for protecting stored products from insect pests is diatomaceous earth (DE). However, certain limitations of DE hinder its broader application in large-scale storage systems. To reduce the amount of DE dust required for effective treatment while maintaining insecticidal activity, a possible solution is to combine DE with other approaches, such as botanicals. For this purpose, we developed a powdered formulation based on DE SilicoSec®, silica gel SIPERNAT® 50 S, and botanicals (bay leaves, corn oil, and lavender essential oil), designated as N Form. The formulation was evaluated against the lesser grain borer, <em>Rhyzopertha dominica</em> (F.), on three maize hybrids: OSSK 617, OSSK 596, and Drava 404. In maize hybrids OSSK 596 and OSSK 617, the insecticidal activity of N Form was significantly higher than that of DE alone, resulting in 100 % mortality at 400 and 600 ppm, respectively, after 7 days of exposure, along with complete progeny inhibition. Among the hybrids tested, N Form showed the lowest efficacy in hybrid Drava 404, achieving a maximum mortality of 60 % after 14 days of exposure. Germination of the treated maize seeds did not change significantly, although a decline in germination energy and a reduction in standard germination were observed in some treatments. The results of our study demonstrate that the efficacy of diatomaceous earth can be significantly enhanced when combined with plant-derived and inert substances.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102970"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carrier-modulated lethality and behavioral responses (repellency and feeding inhibition) of two essential oils on Trogoderma granarium","authors":"Alzahraa A. Elmadawy ,&nbsp;Ahmed M. Abouelatta ,&nbsp;Fatma M.A. Khalil ,&nbsp;Jenan S. Alharbi ,&nbsp;Abdulrahman J.S.F. Alajmi ,&nbsp;Hanan M. Alharbi ,&nbsp;Khairiah Mubarak Alwutayd ,&nbsp;Ahmed S. Hashem","doi":"10.1016/j.jspr.2025.102914","DOIUrl":"10.1016/j.jspr.2025.102914","url":null,"abstract":"<div><div>Sustainable low-residue interventions are urgently needed against quarantine pests of stored commodities. Thus, this study evaluated clove (<em>Syzygium aromaticum</em>) and marjoram (<em>Origanum majorana</em>) essential oils applied at 0.10–1.00 % (w/v) to three carriers (activated charcoal, cork granules, filter paper) and tested fourth-instar larvae and 7–10-day adults of <em>Trogoderma granarium</em> for repellency, feeding deterrence, acute mortality (24, 48, 72 h), substrate weight loss and seed germination. Repellency was life-stage dependent: adults were markedly more repelled than larvae while concentration explained negligible variance (R² ≤ 0.09; all p &gt; 0.05; marginal trend for adults on charcoal p = 0.060). Feeding deterrence exhibited strong log-dose responses across oils and carriers (OLS R² = 0.59–0.88; F_1,48 = 25.5–129.2; P ≤ 1.2 × 10⁻⁹), with clove producing consistently steeper slopes than marjoram. Adult and larval mortality increased with dose and exposure time; at 1.0 % clove adult mortality reached 58.1 %, 84.3 % and 92.9 % at 24, 48 and 72 h, respectively, and larval 72 h fits attained R² up to 0.96 (P ≤ 9.45 × 10⁻¹⁴). Carrier choice modulated commodity impacts and germination (quadratic fits R² ≈ 0.93–0.98). Canonical multivariate analysis identified a dominant discriminant (first canonical correlation r = 0.88; P &lt; 0.001) linking life stage, residual mortality, feeding inhibition and weight loss. Clove on sorptive carriers (charcoal, cork) provided superior and sustained protection, supporting prioritised formulation development and targeted field validation for low-residue stored-product protection.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102914"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145691851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physicochemical stability of aspalathin-rich rooibos iced tea powders under accelerated storage conditions as affected by formulation","authors":"Dalene de Beer ,&nbsp;Chantelle Human ,&nbsp;Brigitte V.P. du Preez ,&nbsp;Erika I. Moelich ,&nbsp;Marique Aucamp ,&nbsp;Marieta van der Rijst ,&nbsp;Elizabeth Joubert","doi":"10.1016/j.jspr.2026.102954","DOIUrl":"10.1016/j.jspr.2026.102954","url":null,"abstract":"<div><div>A stable, palatable, aspalathin-rich rooibos iced tea powder in a convenient single-serve format offers a viable functional beverage for reducing sugar intake. Our initial goal was to determine the optimal ratio of green rooibos extract (GRE) to fermented rooibos extract (FRE). This was essential to create a formulation that combined high aspalathin content with the sought-after sensory profile of traditional fermented rooibos. The second goal was to ascertain how the addition of common beverage ingredients (xylitol, citric, and ascorbic acid) and moisture (6 % and 53 % relative humidity, RH) affected the physicochemical stability of the mixtures during accelerated shelf-life storage (40 °C; 12 weeks). An FRE:GRE ratio of 1:0.5 was found to have a similar sensory profile as FRE, generally accepted by consumers, with a high aspalathin content (83.5 mg L⁻¹) compared to FRE alone (5.5 mg L⁻¹). During storage at 53 % RH, crystalline ingredients significantly decreased the color (lower L∗ and h°) and aspalathin (based on first-order reaction rate constants) stability. Changes in the crystal structure, affected by the interaction between ingredients, were observed using powder X-ray diffraction and Fourier-transform infrared spectroscopy. Minimal changes were observed for all parameters when storing the iced tea powders at 6 % RH, regardless of formulation. Ready-to-reconstitute aspalathin-rich rooibos iced tea powders should be stored in moisture-impermeable packaging to ensure a physically (including color) and chemically stable product.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102954"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing physicochemical and antibacterial properties of pectin-based films via PA-Zn nanoparticle doping for antimicrobial food packaging application","authors":"Han Wang ,&nbsp;Weiqiang Pan ,&nbsp;Hongwei He ,&nbsp;Xiaochen Cheng ,&nbsp;Xiaoyu Chen ,&nbsp;Chengzhen Liu","doi":"10.1016/j.jspr.2026.102968","DOIUrl":"10.1016/j.jspr.2026.102968","url":null,"abstract":"<div><div>Maintaining food integrity and preventing microbial contamination are critical concerns in the food industry. The emergence of nanotechnology has opened new avenues for the development of antimicrobial food packaging materials. In this study, we have harnessed the power of nanozymes (PA-Zn), composed of zinc acetate dihydrate and pyrogallol, to enhance the properties of pectin-based composite biodegradable films (P/ZP). The P/ZP was systematically evaluated for its mechanical, barrier, and antimicrobial properties, as well as its potential for food preservation, with varying concentrations of PA-Zn (1 %, 3 %, 5 %, and 7 %) incorporated into the matrix. The addition of 1 % PA-Zn increased tensile strength from 2.25 MPa to 2.60 MPa and elongation at break from 40 % to 50 %, whereas higher concentrations induced nanoparticle aggregation and reduced mechanical performance. Under light, the film with 7 % PA-Zn exhibited strong antibacterial activity, with inhibition zone of 31 mm against MRSA and 26 mm against ESBL-E. coli; films with ≥3 % PA-Zn showed inhibitory effects without light. Oxygen permeability decreased with PA-Zn content, while water vapor permeability reached a minimum at 1 % PA-Zn before increasing due to aggregation. Furthermore, the films degraded completely into the soil within 14 days, unlike conventional plastic films which showed no remarkable degradation. These results demonstrate that PA-Zn-doped pectin films possess a balanced combination of strengthened mechanical properties, tunable antibacterial activity, improved barriers, and rapid biodegradability, highlighting their strong potential as sustainable, active packaging materials for enhancing food safety and extending shelf life.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102968"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147394265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-thermal sterilization of coconut water via double plasma ozonation: Inactivation kinetics and process design","authors":"David Yudianto ,&nbsp;Bella Mellisani ,&nbsp;Hanafi ,&nbsp;Henny Rochaeny ,&nbsp;Nurhasanah ,&nbsp;Septilina Melati Sirait ,&nbsp;Alvina Nur Aini ,&nbsp;Arya Ulilalbab ,&nbsp;Andita Sayekti ,&nbsp;Ellyas Alga Nainggolan ,&nbsp;Klara Urbanova","doi":"10.1016/j.jspr.2026.102950","DOIUrl":"10.1016/j.jspr.2026.102950","url":null,"abstract":"<div><div>Non-thermal ozonation using a double plasma system presents a promising alternative to conventional heat-based sterilization for maintaining the quality and microbial safety of coconut water. This study aimed to evaluate the inactivation kinetics of <em>Geobacillus stearothermophilus</em>, <em>Bacillus cereus</em>, and <em>Bacillus subtilis</em> during coconut water ozonation and to develop an optimized process design using kinetic parameters. The ozonation process was conducted with a double plasma generator at airflow rates of 1–4 L min⁻¹, corresponding to ozone concentrations of 209–720 mg L⁻¹. The inactivation kinetics followed first-order behavior, where higher ozone concentrations resulted in steeper inactivation slopes and shorter D-values. The D-values at 720 mg L⁻¹ were 30.19, 21.56, and 29.83 min for <em>G. stearothermophilus</em>, <em>B. cereus</em>, and <em>B. subtilis</em>, respectively, while corresponding Z-values were 4151.30, 2304.14, and 3286.38 mg L⁻¹. An optimization model was developed based on these parameters to predict ozonation time–concentration combinations for 3D, 6D, and 9D inactivation levels. The 9D inactivation line for <em>G. stearothermophilus</em> defined the critical design boundary ensuring total bacterial reduction. The optimized condition, ozonation at 720 mg L⁻¹ for 500 min, achieved theoretical 9-log reductions (99.9999999 %) across all bacteria tested. Despite relatively high energy demands, double plasma ozonation offers a viable non-thermal sterilization approach for extending coconut water shelf life while maintaining sensory quality. Future work should focus on scaling, energy optimization, and renewable power integration to enhance its industrial feasibility.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102950"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chitosan–neem (Azadirachta indica) extract coating improves germination, antioxidant defense, and antifungal protection of adzuki bean (Vigna angularis) seeds during summer storage","authors":"Xia Zhou,&nbsp;Cheng Zhong Li,&nbsp;Yan Sun,&nbsp;Huanxinzh Zhang","doi":"10.1016/j.jspr.2025.102942","DOIUrl":"10.1016/j.jspr.2025.102942","url":null,"abstract":"<div><div>During summer storage, a chitosan–neem (<em>Azadirachta indica</em>) leaf extract composite coating was evaluated for preserving adzuki bean (<em>Vigna angularis</em>) seeds. HPLC analysis revealed the presence of azadirachtin (1.25 mg/g), nimbin (0.75 mg/g), nimbidin (0.60 mg/g), quercetin (0.55 mg/g), and rutin (0.50 mg/g) in the aqueous neem extract. Over 90 days, seeds were treated with 1 % chitosan, a composite coating (containing 0.5 % chitosan and 0.25 % neem extract), or left untreated (control). Compared to the control and chitosan-alone treatments, the composite coating significantly (P &lt; 0.05) enhanced seed germination (78.66 %), germination index (88.43), and seedling growth (root length: 7.83 cm; shoot length: 6.34 cm). It also suppressed <em>Fusarium</em> (57.89 %), <em>Aspergillus</em> (61.57 %), and <em>Penicillium</em> (53.32 %) and elevated SOD activity (21.48 U/mg protein) and DPPH radical scavenging activity (75.12 %). Moreover, chitosan–neem treatment reduced stress-related physiological indicators, such as MDA (1.42 nmol/g), NO (2.89 μmol/g), and electrical conductivity (0.69 mS/cm). These results indicate that the chitosan–neem composite coating improves adzuki bean seed germination, antioxidant and antifungal protection, and mitigates storage-induced deterioration.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102942"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insecticidal effects of zeolites from natural origins against stored product pests under laboratory and storage conditions","authors":"Ezequiel Garcia-Souza ,&nbsp;Bianca Cristine de Moura Santos ,&nbsp;Elisabeth Daniella Aboumegone-Zue ,&nbsp;Isabela Gomes Oliveira ,&nbsp;Marcus Vinícius Rodrigues Matos ,&nbsp;Marco Aurélio Guerra Pimentel ,&nbsp;Khalid Haddi","doi":"10.1016/j.jspr.2025.102925","DOIUrl":"10.1016/j.jspr.2025.102925","url":null,"abstract":"<div><div>We evaluated the insecticidal efficacy of natural zeolites from Slovakia (40 μm), Cuba (40 μm and 400 μm), and Drycell zeolite from Cuba (&lt;40 μm) against <em>Sitophilus zeamais</em> under laboratory conditions. All laboratory bioassays were conducted under controlled parameters (27 ± 2 °C; 60 ± 10 % RH; photoperiod 12:12 h L/D) with the Slovakian zeolite showing the highest efficacy, reaching 72.5 % mortality after seven days of exposure on maize grains. Population growth assays further demonstrated that at 750 and 1000 ppm, the same Slovakian zeolite significantly reduced <em>S. zeamais</em> progeny, with growth rate (<em>ri</em>) approaching zero after three months of storage. The effectiveness of Slovakian zeolite was subsequently assessed against <em>Acanthoscelides obtectus</em> (on beans), <em>Plodia interpunctella</em>, <em>Tribolium castaneum</em>, and <em>Cryptolestes ferrugineus</em>, revealing species-specific susceptibility, with the highest mortality observed in <em>C. ferrugineus</em>, <em>P. interpunctella</em>, and <em>A. obtectus</em>, which reached nearly 100 % after 3 day at 750 ppm, whereas <em>T. castaneum</em> was less susceptible. Under storage conditions, Slovakian zeolite-maintained grain damage below 4.5 %, similar to diatomaceous earth (6.62 %), while untreated grains exhibited nearly three-fold higher damage, reaching 12.6 %. Behavioural assays indicated an application rate–dependent avoidance response, with 88 % of <em>S. zeamais</em> selecting untreated grain mass over grains treated with 1000 ppm Slovakian zeolite. Scanning electron microscopy supported these findings, revealing that zeolite particles adhered to the insect cuticle and affected sensory structures such as sensilla, which were observed to be damaged, detached, or obstructed after exposure. Overall, these results highlight the potential of naturally occurring zeolites, particularly those of Slovakian origin, as an effective, low-cost, and eco-friendly alternative for stored-product pest management.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"116 ","pages":"Article 102925"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}