Journal of Stored Products Research最新文献_第2页

Impact of feed type, environmental conditions, and pesticide usage on the growth and aflatoxin production by Aspergillus parasiticus during feed storage

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-02-26 DOI: 10.1016/j.jspr.2025.102599

Jing Gao , Qi Guo , Jun Zhang , Jiahui Li , Peiya Wang

The co-occurrence of AFB₁, AFB₂, AFG₁, and AFG₂ in mold-contaminated feed suggests a significant contribution of A. parasiticus to aflatoxin contamination in feed. In contrast to A. flavus, research on the effects of A. parasiticus growth and aflatoxin production is limited. This study aims to investigate the factors influencing the growth and aflatoxin production by A. parasiticus, as well as to analyze the interactions among these factors utilizing response surface methodology. The results will be compared with relevant studies on A. flavus, ultimately contributing to the development of a comprehensive strategy for the prevention of aflatoxin contamination. The findings indicated that both A. parasiticus and A. flavus used sugar as an initial substrate to produce aflatoxins. The substrate preference of A. parasiticus was not changed due to differences in nutrient content in different feeds. The mineral Mn was found to suppress aflatoxin production by both fungi, whereas glucose, sucrose, and Zn stimulated production. Temperature and water activity levels effective against A. flavus may not be equally effective for A. parasiticus. The optimum storage conditions were for temperature and water activity below 10 °C and 0.85 at the same time. Although chemical pesticides may comply with regulatory limits in feed, certain pesticides and their interactions could increase the risk of aflatoxin contamination during feed storage. Hence, a comprehensive evaluation of factors influencing both fungi is imperative to prevent aflatoxin contamination effectively.

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引用次数: 0

Impact of pretreatment sterilization techniques and ginger (Zingiber officinale roscoe) essential oil-based active packaging on the quality of crucian carp (Carassius auratus) during cold storage

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-02-26 DOI: 10.1016/j.jspr.2025.102598

Peng Shi , Jun Mei , Jing Xie

This study explored the effect of combining ginger (Zingiber officinale Roscoe) essential oil (GEO) active packaging with non-thermal sterilization techniques—ozonated water, slightly acidic electrolyzed water (SAEW), and photodynamic inactivation (PDI)—on the quality of crucian carp (Carassius auratus) during cold storage at 4 °C. The results showed that combining GEO with sterilization techniques significantly delayed microbial spoilage, extending the fish's shelf life from 9 days (control group) to 21–24 days. Microbiological analyses showed counts of total viable bacteria, Pseudomonas spp., H₂S-producing bacteria, and psychrotrophic bacteria in GEO compared to the control. The treated samples also exhibited lower total volatile basic nitrogen (TVB-N) values, and better water retention, as demonstrated by low-field nuclear magnetic resonance (LF-NMR) and magnetic resonance imaging (MRI) analysis. Sensory evaluations further confirmed that the GEO-treated fish retained better odor, color, and texture during storage. In conclusion, the combined use of GEO and sterilization techniques proved highly effective in extending the shelf life of crucian carp while maintaining its quality, offering a promising solution for preserving perishable aquatic products.

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引用次数: 0

Implications of mitonuclear interactions for the Trojan Female Technique in pest biocontrol: A case study on the seed beetle Acanthoscelides obtectus 有丝分裂核相互作用对害虫生物控制中特洛伊雌虫技术的影响：种甲虫 Acanthoscelides obtectus 案例研究

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-02-22 DOI: 10.1016/j.jspr.2025.102595

Lea Vlajnić , Filip Vukajlović , Sanja Budečević , Uroš Savković , Biljana Stojković , Mirko Đorđević

The seed beetle (Acanthoscelides obtectus) is a pest of common beans and other legumes that causes considerable losses of stored products. Its populations are universally regulated with insecticides, but novel, safer and more efficient methods of control are needed. One such method is the Trojan Female Technique (TFT) which is based on the existence of male harming/female benign mitochondrial haplotypes. The introduction of females carrying haplotypes with male-specific negative effect into the target population can lead to its self-perpetuating suppression over generations. Due to the coevolution of mitochondrial and nuclear genomes, it is possible for nuclear variants that compensate for the negative effects of male harming mitochondrial haplotypes to evolve. Therefore, one of the requirements for the applicability of TFT is that candidate mitochondrial haplotypes confer their negative effects on males in diverse nuclear backgrounds. In this study, we used the previously described mitochondrial haplotype, MG3b, which reduces male-only fertility, and placed it in a range of nuclear backgrounds from three different natural populations. The goal was to test whether its effects on male and female fertility are dependent on interactions with different nuclei. Our results showed that MG3b consistently decreases male fertility independently of the nuclear environments, while having no negative effect on females. Additionally, we found no statistically significant effect of mitonuclear interactions, suggesting that there is no standing variation of compensatory mutations in nuclear backgrounds. These results indicate that the MG3b haplotype could be used in the TFT in different natural seed beetle populations.

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引用次数: 0

Molecular insights into water balance disruption as a pest control strategy for Rhyzopertha dominica (F.)

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-02-21 DOI: 10.1016/j.jspr.2025.102593

Yueliang Bai , Guiyao Wang , Ru Zhang , Chunqi Bai , Jianhua Lv , Meng Zhang

Rhyzopertha dominica (Fabricius), the lesser grain borer, is a major pest of stored grains and causes significant economic losses globally. Inert dust, an environmentally friendly insecticide, can cause rapid water loss and death in insects by disrupting the cuticular waterproof barrier. Its successful application highlights the potential of targeting the water balance as an effective pest control strategy, especially in dry storage environments. However, research on the molecular mechanisms of stored-product insects under inert dust or direct desiccation conditions is limited. In the present study, we assessed the lethal effects of inert dust (LC₅₀ = 0.606 g/m²) and desiccation (LT₅₀ = 6.208 d) on R. dominica. Subsequently, a high-quality gene set containing 14,363 protein-coding sequences was obtained through genome annotation. Comparative transcriptome analysis of the two treatments was conducted by mapping to a reference gene set, followed by RT-qPCR validation. The analysis revealed a substantial overlap in the DEGs between the two treatments. Among these, 141 upregulated genes were primarily involved in processes such as fatty acid elongation, uric acid metabolism, and phospholipid metabolism, whereas 183 downregulated genes were mainly associated with nutrient absorption, detoxification, and hormone regulation, reflecting an energy trade-off in R. dominica under stress conditions. Moreover, multiple key enzyme genes that participate in cuticular hydrocarbon biosynthesis were significantly upregulated, suggesting a critical role for this process in water stress adaptation. These findings provide valuable resources for molecular research on R. dominica and offer insights into the development of pest management strategies targeting insect water balance mechanisms.

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引用次数: 0

Development of functional beverage using pineapple juice and Bougainvillea spectabilis flower powder: Effect on the quality and storage stability

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-02-20 DOI: 10.1016/j.jspr.2025.102587

Pooja Mahey , Maanas Sharma , Manmath Sontakke , Arun Kumar Gupta , Avinash Kumar Jha , Javed Masood Khan

In this study, dried Bougainvillea spectabilis flower powder (0.25 g/50 mL to 4 g/50 mL) was used to develop a functional pineapple beverage. The enriched formulations showed enhanced physicochemical and bioactive properties. Titratable acidity ranged from 0.71% to 0.93%, higher than the control sample's 0.71%, indicating increased acidity, with pH values between 3.53 and 3.64. The enriched samples exhibited higher total soluble solids (TSS) compared to the control, reflecting improved compositional density. The bioactive analysis revealed a significant increase in total phenolic content (TPC), ranging from 89.81 mg GAE/mL to 101.83 mg GAE/mL, and total flavonoid content (TFC), rising from 11.77 mg QE/mL in the control to 12.53 mg QE/mL in the highest-enriched sample. Although the enriched formulations initially showed slightly lower antioxidant activity (23.04 ± 0.89%) compared to the control, their antioxidant stability was significantly higher during storage (p<0.05). Sensory evaluation identified significant differences among samples, with the control and low-concentration formulations (T1: 0.25 g and T2: 0.5 g powder) receiving the highest overall acceptability scores of 8.5, 8.3, and 7.9, respectively. However, higher powder concentrations (e.g., T5: 1.25 g) negatively impacted sensory attributes, resulting in lower scores. These findings suggest that incorporating optimized amounts of Bougainvillea spectabilis flower powder enhances the nutritional, functional, and sensory properties of pineapple juice. This highlights its potential as a novel ingredient for functional beverage development, aligning with current nutraceutical trends.

在这项研究中，九重葛干花粉末（0.25 克/50 毫升至 4 克/50 毫升）被用于开发功能性菠萝饮料。富集后的配方显示出更强的理化和生物活性特性。可滴定酸度在 0.71% 至 0.93% 之间，高于对照样品的 0.71%，表明酸度增加，pH 值在 3.53 至 3.64 之间。与对照样本相比，富集样本的总可溶性固形物（TSS）更高，反映出成分密度有所提高。生物活性分析表明，总酚含量（TPC）明显增加，从 89.81 毫克 GAE/mL 增加到 101.83 毫克 GAE/mL，总黄酮含量（TFC）从对照组的 11.77 毫克 QE/mL 增加到最高富集样本的 12.53 毫克 QE/mL。虽然与对照组相比，富集配方最初显示的抗氧化活性略低（23.04 ± 0.89%），但在储存期间，其抗氧化稳定性显著提高（p<0.05）。感官评估发现不同样品之间存在明显差异，对照组和低浓度配方（T1：0.25 克和 T2：0.5 克粉末）的总体可接受性得分最高，分别为 8.5 分、8.3 分和 7.9 分。然而，较高的粉末浓度（如 T5：1.25 克）会对感官属性产生负面影响，导致得分降低。这些研究结果表明，加入适量的九重葛花粉可提高菠萝汁的营养、功能和感官特性。这凸显了九重葛作为一种新型配料在功能性饮料开发中的潜力，符合当前营养保健品的发展趋势。

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引用次数: 0

Correlation of β-hexosaminidases and α-mannosidases with changes in protein conjugated N-glycan profiles during peach ripening

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-02-19 DOI: 10.1016/j.jspr.2025.102592

Xia Fan , Ting Wang

Recent studies have demonstrated that N-glycan and its metabolic pathway are crucial in the ripening and softening processes of peaches, as evidenced by the significant upregulation of processing enzymes such as α-mannosidase (α-Man) and β-hexosaminidase (β-Hex). However, little is known about the changes of protein conjugated N-glycans in peaches during storage. In this study, a systematic comparison of the N-glycan profiles of three peach cultivars with distinct flesh types, specifically, the soft-melting “Hu Jing”, the hard-melting “Xia Hui 6″, and the stonyhard “Xia Cui” was provided. The study monitored the structure and content changes of these N-glycans during storage. Fourteen different N-glycan structures were identified using Matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry. A consistent N-glycan profile with varying relative content was observed among three cultivars. MMXF³, GnGnXF³, and MM were characterized as representative structures associated with ripening, showing statistically significant correlations with firmness. The conversion of GnGnXF³ to MMXF³ were proposed to be catalyzed by β-Hexs, which exhibited significantly increased activities in all three cultivars during storage. The degradation of high-mannose N-glycans to yield MM structure were observed, but no significant increase in α-Man activities was observed. Real-time qPCR results demonstrated that distinct gene expression patterns of β-Hexs and α-Mans existed among three cultivars. The expressions of genes hex0020 and man4915 were highest and exhibited a climacteric pattern in the “Hu Jing” cultivar. In contrast, these same genes displayed a double-peak expression pattern in the “Xia Hui 6” cultivar and steadily decreased in the “Xia Cui” cultivar. Our findings provide detailed insights into the changes of N-glycome associated with peach ripening and suggest potential target genes for preventing excessive softening in peaches. However, further investigation is needed to clarify the role of N-glycosylation and its related metabolic enzyme genes in peach fruit ripening and softening.

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引用次数: 0

A Wolbachia strain in the flour moth, Ephestia kuehniella, causes moderate cytoplasmic incompatibility but has little impact on host fitness

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-02-17 DOI: 10.1016/j.jspr.2025.102577

Jing Zhao , Joshua A. Thia , Qiong Yang , Jasmeen Kaur , Hareem Qazi , Perran A. Ross , Ary A. Hoffmann

The flour moth, Ephestia kuehniella Zelter 1979 (Pyralidae: Phycitinae) is well known as a pest of stored products and serves as an important host for parasitoids in commercial rearing. In this study, we detected and characterized a Wolbachia infection in E. kuehniella from a local Australian commercial strain used to rear parasitoids. Identification of Wolbachia by PCR and a phylogenetic reconstruction using the wsp gene showed that the Wolbachia strain belongs to Supergroup A. After generating a cured line, we found that flour moths from this commercial line suffered partial cytoplasmic incompatibility, where around 50% of eggs hatched in incompatible crosses. The infection did not generate large host fitness effects once inbreeding and maternal effects were controlled. This contrasts with previous studies demonstrating costs of Wolbachia, suggesting that Wolbachia strains in the flour moth may have different fitness effects depending on the strain or host genotype. This research suggests that commercial insectaries do not gain much by clearing Wolbachia from their production stocks but should be mindful of inbreeding depression when establishing cultures.

{"title":"A Wolbachia strain in the flour moth, Ephestia kuehniella, causes moderate cytoplasmic incompatibility but has little impact on host fitness","authors":"Jing Zhao , Joshua A. Thia , Qiong Yang , Jasmeen Kaur , Hareem Qazi , Perran A. Ross , Ary A. Hoffmann","doi":"10.1016/j.jspr.2025.102577","DOIUrl":"10.1016/j.jspr.2025.102577","url":null,"abstract":"<div><div>The flour moth, <em>Ephestia kuehniella</em> Zelter 1979 (Pyralidae: Phycitinae) is well known as a pest of stored products and serves as an important host for parasitoids in commercial rearing. In this study, we detected and characterized a <em>Wolbachia</em> infection in <em>E. kuehniella</em> from a local Australian commercial strain used to rear parasitoids. Identification of <em>Wolbachia</em> by PCR and a phylogenetic reconstruction using the <em>wsp</em> gene showed that the <em>Wolbachia</em> strain belongs to Supergroup A. After generating a cured line, we found that flour moths from this commercial line suffered partial cytoplasmic incompatibility, where around 50% of eggs hatched in incompatible crosses. The infection did not generate large host fitness effects once inbreeding and maternal effects were controlled. This contrasts with previous studies demonstrating costs of <em>Wolbachia</em>, suggesting that <em>Wolbachia</em> strains in the flour moth may have different fitness effects depending on the strain or host genotype. This research suggests that commercial insectaries do not gain much by clearing <em>Wolbachia</em> from their production stocks but should be mindful of inbreeding depression when establishing cultures.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102577"},"PeriodicalIF":2.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insecticidal effects of substances from cinnamon bark – eugenol, trans-cinnamaldehyde and cinnamaldehyde on Tenebrio molitor (Coleoptera: Tenebrionidae)

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-02-17 DOI: 10.1016/j.jspr.2025.102572

Aleksandra Dzięgelewska , Jan Lubawy , Zbigniew Adamski

The use of synthetic pesticides is increasingly limited due to their environmental impact, development of pest resistance, and confirmed negative effects on human health. At the same time, the demand for food grown in accordance with the principles of organic farming is increasing. Integrated Pest Management (IPM) promotes the use of biopesticides - natural substances with low toxicity to nontarget species as alternatives to synthetic pesticides. These substances include, among others, compounds found in the bark of the Ceylon cinnamon tree (Cinnamomum verum J. Presl, Lauraceae), such as eugenol, trans-cinnamaldehyde and cinnamaldehyde. However, the mechanism of their action has not been sufficiently researched. Therefore, this study compared the effects of these substances and various modes of their application on important pests of cereal crops and food stores and on a model organism, Tenebrio molitor beetle (Coleoptera: Tenebrionidae). The tested compounds were administered by injection, inhalation, food, by immersing the tested larvae or by contacting them with substratum soaked in the tested compound. The results allowed us to determine the LT₅₀ parameter, and the probit analysis estimated the LC_20/30/50/95 values. The results showed that the most effective route for administering cinnamon bark compounds is contact and injection, and the most effective compound is eugenol, with an LC₅₀ value of 2.01 μl/ml (contact). The lowest LC₅₀ values for trans-cinnamaldehyde and cinnamaldehyde were 6.28 μl/ml (injection) and 15.66 μl/ml (contact), respectively. Second, cinnamaldehyde and trans-cinnamaldehyde (filter paper tests at 200 μl/ml) and eugenol (immersion test at 300 μl/ml) had the lowest LT₅₀ values. The test results also indicate that all the tested compounds cause morphological malformations in T. molitor larvae in the concentration range of 50–300 μl/ml. This research highlights the insecticidal potential of eugenol and cinnamaldehydes, indicating that cinnamon bark-derived pesticides could effectively control T. molitor populations. These compounds are promising for developing eco-friendly biopesticides.

{"title":"Insecticidal effects of substances from cinnamon bark – eugenol, trans-cinnamaldehyde and cinnamaldehyde on Tenebrio molitor (Coleoptera: Tenebrionidae)","authors":"Aleksandra Dzięgelewska , Jan Lubawy , Zbigniew Adamski","doi":"10.1016/j.jspr.2025.102572","DOIUrl":"10.1016/j.jspr.2025.102572","url":null,"abstract":"<div><div>The use of synthetic pesticides is increasingly limited due to their environmental impact, development of pest resistance, and confirmed negative effects on human health. At the same time, the demand for food grown in accordance with the principles of organic farming is increasing. Integrated Pest Management (IPM) promotes the use of biopesticides - natural substances with low toxicity to nontarget species as alternatives to synthetic pesticides. These substances include, among others, compounds found in the bark of the Ceylon cinnamon tree (<em>Cinnamomum verum</em> J. Presl, Lauraceae), such as eugenol, <em>trans</em>-cinnamaldehyde and cinnamaldehyde. However, the mechanism of their action has not been sufficiently researched<em>.</em> Therefore, this study compared the effects of these substances and various modes of their application on important pests of cereal crops and food stores and on a model organism, <em>Tenebrio molitor</em> beetle (Coleoptera: Tenebrionidae). The tested compounds were administered by injection, inhalation, food, by immersing the tested larvae or by contacting them with substratum soaked in the tested compound. The results allowed us to determine the LT<sub>50</sub> parameter, and the probit analysis estimated the LC<sub>20/30/50/95</sub> values. The results showed that the most effective route for administering cinnamon bark compounds is contact and injection, and the most effective compound is eugenol, with an LC<sub>50</sub> value of 2.01 μl/ml (contact). The lowest LC<sub>50</sub> values for <em>trans</em>-cinnamaldehyde and cinnamaldehyde were 6.28 μl/ml (injection) and 15.66 μl/ml (contact), respectively. Second, cinnamaldehyde and <em>trans</em>-cinnamaldehyde (filter paper tests at 200 μl/ml) and eugenol (immersion test at 300 μl/ml) had the lowest LT<sub>50</sub> values. The test results also indicate that all the tested compounds cause morphological malformations in <em>T. molitor</em> larvae in the concentration range of 50–300 μl/ml. This research highlights the insecticidal potential of eugenol and cinnamaldehydes, indicating that cinnamon bark-derived pesticides could effectively control <em>T</em>. <em>molitor</em> populations. These compounds are promising for developing eco-friendly biopesticides.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102572"},"PeriodicalIF":2.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal death kinetics of pests in tobacco leaves as influenced by heating rates and life stages

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-02-17 DOI: 10.1016/j.jspr.2025.102591

Jinsong Zhang , Xin Ye , Zijun Mo , Hongwei Wang , Xican Gu , Jiaqin Xi , Rui Li , Shaojin Wang

Thermal death kinetics of insects are essential for developing effective disinfestation protocols using heating treatments. The thermal resistance of Lasioderma serricorne (F.) (Coleoptera: Anobiidae) and Ephestia elutella (Hübner) (Lepidoptera: Pyralidae) under different life stages were compared using a heating block system (HBS) and the more resistant pest and life stage were selected for further establishing the thermal death kinetic model at four temperatures under a specified heating rate. The results indicated that when the two target pests were in the same life stage, the tobacco beetle was more heat-tolerant than the tobacco moth and selected for the following thermal death kinetic studies. With the stronger heat tolerance than that of adults and eggs, the mortality rate of tobacco beetle larvae was determined as influenced by the 5 heating rates, showing that the heating rate of 5 °C/min resulted in higher mortality as compared to 0.1 or 0.5 °C/min and similar mortality to 1 and 10 °C/min, and selected for further studies to effectively simulate rapid radio frequency heating. The 0th-order kinetic response model was more suitable for describing thermal death curves of L. serricorne larvae. The minimum holding time required to kill all the test pests was 48, 28, 8, and 2 min at 51, 53, 55, and 57 °C, respectively. The activation energy required to eliminate L. serricorne was calculated to be 553.8 kJ/mol. The information gained from this study is instrumental in designing efficient heat treatment protocols for disinfesting tobacco leaves.

{"title":"Thermal death kinetics of pests in tobacco leaves as influenced by heating rates and life stages","authors":"Jinsong Zhang , Xin Ye , Zijun Mo , Hongwei Wang , Xican Gu , Jiaqin Xi , Rui Li , Shaojin Wang","doi":"10.1016/j.jspr.2025.102591","DOIUrl":"10.1016/j.jspr.2025.102591","url":null,"abstract":"<div><div>Thermal death kinetics of insects are essential for developing effective disinfestation protocols using heating treatments. The thermal resistance of <em>Lasioderma serricorne</em> (F.) (Coleoptera: Anobiidae) and <em>Ephestia elutella</em> (Hübner) (Lepidoptera: Pyralidae) under different life stages were compared using a heating block system (HBS) and the more resistant pest and life stage were selected for further establishing the thermal death kinetic model at four temperatures under a specified heating rate. The results indicated that when the two target pests were in the same life stage, the tobacco beetle was more heat-tolerant than the tobacco moth and selected for the following thermal death kinetic studies. With the stronger heat tolerance than that of adults and eggs, the mortality rate of tobacco beetle larvae was determined as influenced by the 5 heating rates, showing that the heating rate of 5 °C/min resulted in higher mortality as compared to 0.1 or 0.5 °C/min and similar mortality to 1 and 10 °C/min, and selected for further studies to effectively simulate rapid radio frequency heating. The 0th-order kinetic response model was more suitable for describing thermal death curves of <em>L. serricorne</em> larvae. The minimum holding time required to kill all the test pests was 48, 28, 8, and 2 min at 51, 53, 55, and 57 °C, respectively. The activation energy required to eliminate <em>L. serricorne</em> was calculated to be 553.8 kJ/mol. The information gained from this study is instrumental in designing efficient heat treatment protocols for disinfesting tobacco leaves.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102591"},"PeriodicalIF":2.7,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419178","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}

引用次数: 0

Optimizing phosphine applications for insect control in Bagged rice stored in Indian warehouses

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research

Pub Date : 2025-02-16 DOI: 10.1016/j.jspr.2025.102584

Sumitra Arora , Naveenkumar Patil , Totan Adak , Mayabini Jena , Chitra Srivastava

Phosphine, considered a viable substitute for methyl bromide amid its global phase-out, requires assessment for fumigation efficacy in India due to limited reports on its field applications. This study assessed phosphine's effectiveness against stored grain insects by stacking 150 tonnes of rice into 30 stacks (5 tonnes each), replicated thrice with including same number of controls. Target insects included Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae), Sitophilus oryzae (Lin, 1763) (Coleoptera: Curculionidae), and Rhyzopertha dominica (Fab, 1792) (Coleoptera: Bostrichidae) across three locations. Two aluminium phosphide (AlP) formulations (56% at 2 and 3 tablets/tonne; 77.5% granule at 1.0 and 1.5 g phosphine/m³) were tested with 7- and 10-day exposures at all locations. Insects were monitored for 60 days post-treatment, achieving 100% mortality except for the field population of T. castaneum at Cuttack. Phosphine at 500–700 ppm could effectively control all insect stages in untreated infested grains at 1.5 g/m³ phosphine gas following 7 days exposure at 28–36 °C and 52–80% humidity. Cumulative Ct values ranged from 264 to 332 g h/m³, with 15–16% gas dissipation across locations. Phosphine proved effective for rice storage pest control.

{"title":"Optimizing phosphine applications for insect control in Bagged rice stored in Indian warehouses","authors":"Sumitra Arora , Naveenkumar Patil , Totan Adak , Mayabini Jena , Chitra Srivastava","doi":"10.1016/j.jspr.2025.102584","DOIUrl":"10.1016/j.jspr.2025.102584","url":null,"abstract":"<div><div>Phosphine, considered a viable substitute for methyl bromide amid its global phase-out, requires assessment for fumigation efficacy in India due to limited reports on its field applications. This study assessed phosphine's effectiveness against stored grain insects by stacking 150 tonnes of rice into 30 stacks (5 tonnes each), replicated thrice with including same number of controls. Target insects included <em>Tribolium castaneum</em> (Herbst, 1797) (Coleoptera: Tenebrionidae), <em>Sitophilus oryzae</em> (Lin, 1763) (Coleoptera: Curculionidae), and <em>Rhyzopertha dominica</em> (Fab, 1792) (Coleoptera: Bostrichidae) across three locations. Two aluminium phosphide (AlP) formulations (56% at 2 and 3 tablets/tonne; 77.5% granule at 1.0 and 1.5 g phosphine/m³) were tested with 7- and 10-day exposures at all locations. Insects were monitored for 60 days post-treatment, achieving 100% mortality except for the field population of <em>T. castaneum</em> at Cuttack. Phosphine at 500–700 ppm could effectively control all insect stages in untreated infested grains at 1.5 g/m³ phosphine gas following 7 days exposure at 28–36 °C and 52–80% humidity. Cumulative Ct values ranged from 264 to 332 g h/m³, with 15–16% gas dissipation across locations. Phosphine proved effective for rice storage pest control.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":"111 ","pages":"Article 102584"},"PeriodicalIF":2.7,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419173","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}

引用次数: 0