Journal of Stored Products Research最新文献

{"title":"Insecticidal effect of two Turkish entomopathogenic nematode isolates against Tribolium castaneum (Herbst) larvae and adults at different conditions","authors":"","doi":"10.1016/j.jspr.2024.102432","DOIUrl":"10.1016/j.jspr.2024.102432","url":null,"abstract":"<div><div>Red flour beetle, <em>Tribolium castaneum</em> (Herbst.), is the most common pest of stored grains and products. Aerial and contact pesticides are used to control this pest. However, the red flour beetle has also developed significant resistance to phosphine, the main fumigant currently in use worldwide. The adverse effects of pesticides on non-target organisms, groundwater contamination, residues on food crops, and the emergence of insect resistance to chemicals have compelled the industry to prioritize the development of alternative control measures. Entomopathogenic nematodes find application in various agricultural systems. The insecticidal effect of two isolates of <em>Steinernema feltiae</em> Filipjev (Nematoda: Steinernematidae) and <em>Heterorhabditis bacteriophora</em> Poinar (Nematoda: Heterorhabditidae) against the different stages of <em>T. castaneum.</em> The entomopathogenic nematode isolates were examined at four concentrations (0, 250, 500, and 1000 IJs/ml) with a distilled water at 15 and 25 ± 1 °C temperatures. Results revealed that both <em>S. feltiae</em> (A-16) caused with 92.33% mortality rate while <em>H. bacteriophora</em> (O-7) caused with 76.77% mortality in the last instar larvae of the red flour beetle while these two species caused 75.38% and 66.85% mortality in adults, at 25 °C. The effect of nematodes decreased as the temperature decreased. According to results, the mortality rate of <em>T. castaneum</em> larvae treated with S<em>. feltiae</em> (A-16) with (54.62%) was significantly higher than that of <em>H. bacteriophora</em> (O-7) with (32.13%) 96 h after inoculation at 15 °C. The data indicated that 1000 IJs/ml was the most effective concentration of tested EPN isolates for all larval and adult stages.</div><div>In this study, our findings indicate that <em>S. feltiae</em> (A-16) and <em>H. bacteriophora</em> (O-7) can be used as effective biological control agents against both the larval and adult stages of the red flour beetle. The results demonstrate that EPNs are promising candidates for biocontrol of <em>T. castaneum.</em> This information is useful in designing future biological control programs.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142423917","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":"Behavioural responses of Sitophilus granarius (L.) and Rhyzoperta dominica (F.) to odours of old and modern wheat genotypes","authors":"","doi":"10.1016/j.jspr.2024.102433","DOIUrl":"10.1016/j.jspr.2024.102433","url":null,"abstract":"<div><div><em>Sitophilus granarius</em> (L.) and <em>Rhyzopertha dominica</em> (F.) are among the major stored-product pests worldwide. The identification of low or un-attractive wheat genotypes toward storage pests and their Volatile Organic Compounds (VOCs) profile is useful in breeding programs and in characterization of behaviourally active compounds suitable in developing semiochemical-based control means. Old wheat cultivars are genetic resources useful for breeding purposes. In this study, the VOC profiles of old genotypes, Senatore Cappelli, old Saragolla, Dauno III, and modern wheat varieties, Mec, Ofanto, Svevo, and Faridur, were characterized by headspace - solid phase microextraction (HD-SPME) and gaschromatography coupled with mass spectrometry (GC-MS) and their attractiveness towards <em>S. granarius</em> and <em>R. dominica</em> adults was evaluated in two-choice pitfall bioassays and Y-tube olfactometer, respectively. <em>Sitophilus granarius</em> adults were significantly attracted to odours of all varieties, with females being significantly more attracted by Faridur, Ofanto, Mec, and old Saragolla compared to Svevo. <em>Rhyzopertha dominica</em> males and females exhibited a significant olfactory preference for the odours of Faridur, Mec, and old Saragolla. The olfactory preferences of both species could be related to differences emerged in varietal VOC profiles. The most attractive variety for both species, Faridur, was rich in alcohols, alkanes, and terpenes. Old Saragolla, Ofanto, and Mec were rich in alcohols and organic acids. Dauno III was the richest variety in alcohols and lactones, and the poorest in aldehydes and terpenes compared to other varieties. Svevo showed the lowest amounts of alcohols and the highest value of aldehydes; Senatore Cappelli was rich in aldehydes, organic acids, and alkanes. The possible effects of the differences in VOC profiles on the olfactory preferences of insects are discussed. The study offers new knowledge for further investigation testing VOCs of the most and the lowest attractive varieties to identify effective attractants or strong repellents towards <em>S. granarius</em> and <em>R. dominica</em>.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142423916","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}

{"title":"Insect pests of dried yam (Dioscorea sp.) chips and the perception of processors and marketers on their control","authors":"","doi":"10.1016/j.jspr.2024.102429","DOIUrl":"10.1016/j.jspr.2024.102429","url":null,"abstract":"<div><div>This survey was aimed at understanding the perception of Dried yam chips (DYC) Processors and Marketers on insect pests' infestation of DYC and their damage through the use of structured questionnaires. Data on socio-economic characteristics and technical information were analyzed using descriptive statistics such as frequency distribution, percentages, and means. Data on the perception of insect pests and measures of pest control were placed on a 3-point Likert Rating Scale (LRS). Analysis of variance (ANOVA) was done on the population density of the identified insects and significant mean values were compared using Fisher's Least Significant Difference. Seven insect pests; <em>Prostephanus truncatus</em>, <em>Rhyzopertha dominica</em>, <em>Tribolium castaneum</em>, <em>Stegobium paniceum, Heterobostrychus aequalis</em>, <em>Sitophilus zeamais</em>, <em>Areacerus fasciculatus,</em> and one natural enemy; <em>Peregrinator biannulipes</em> were associated with DYC. However, <em>P. truncatus, R. dominica,</em> and <em>A. fasciculatus</em> were the most prevalent insect pests, causing significant damage to DYC. Approximately, 49% of processors reportedly control insect infestation in DYC using conventional insecticides, 23% by re-drying, 14% by botanicals, and the others by removing affected DYC. These findings provide useful information for extension workers involved in community education, and intervention programs by government or non-governmental organizations including public health experts and researchers.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142423914","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":"Efficacy of selected insecticide sprays against Indian meal moth (Lepidoptera: Pyralidae) wandering larvae on various surfaces","authors":"","doi":"10.1016/j.jspr.2024.102438","DOIUrl":"10.1016/j.jspr.2024.102438","url":null,"abstract":"<div><div>The Indian meal moth, <em>Plodia interpunctella</em> (Hübner) (Lepidoptera: Pyralidae), is a worldwide pest found in food product warehouses. Presence of <em>P. interpunctella</em> wandering larvae causes customer complaints and product rejection from customers. Its prepupal stage is susceptible to insecticide treatment due to their wandering behavior. We evaluated the efficacy of three insecticide sprays, ExciteR (0.017% pyrethrins, 0.174% piperonyl butoxide), Suspend SC (0.053% deltamethrin), and Transport Mikron (0.047% acetamiprid, 0.056% bifenthrin) against <em>P. interpunctella</em> wandering larvae by forced exposure to porous (vinyl tile, unpainted pinewood, concrete, and paper) and non-porous (steel, glazed ceramic) surfaces, and exposure to treated harborages made of two pieces of vinyl tiles, unpainted pinewood, and concrete. Under continuous exposure conditions, both ExciteR and Suspend SC caused significantly higher mortality (90–96%) than Transport Mikron (73–75%) on non-porous surfaces after 4 days (<em>P</em> &lt; 0.05). But on porous surfaces, the three insecticides caused ≤63% mortality with Suspend SC being the most effective. When using 2× amount of insecticides as that in the previous test (2.1 gallon/1000 ft², which is 4.33, 1.20, and 2.33 mg a.i./m² of ExciteR, Suspend SC, and Transport Mikron, respectively), Suspend SC was the only insecticide causing high mortality (≥99%) through both forced exposure to concrete surface and exposure to treated concrete harborage. Whereas other treatments caused &lt;12% mortality. Among the porous surfaces, residual efficacy of Suspend SC on concrete was significantly higher than that on vinyl tiles. Application of an effective liquid insecticide (such as 0.053% deltamethrin) into harborages or directly to the possible pupation sites, such as corners, cracks, and crevices could be an effective strategy for managing <em>P</em>. <em>interpunctella</em> wandering larvae in warehouse environment.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142423913","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 and AChE inhibitory activities of Matricaria chamomilla var. recutita essential oils collected from different regions against storage insect pests","authors":"","doi":"10.1016/j.jspr.2024.102439","DOIUrl":"10.1016/j.jspr.2024.102439","url":null,"abstract":"<div><div>The essential oils of the flowers of <em>Matricaria chamomilla</em> var. <em>recutita</em> from İstanbul and Bursa were analyzed by GC-MS. The essential oil yields were 0.32 and 0.18 v/w, respectively. The main components of the essential oil of the İstanbul sample were bisabolene oxide (41.81%), (<em>E</em>)-<em>β</em>-Farnesene (7.52%), and bisabolol oxide B (3.18%). The main components of the oil from the Bursa sample were bisabolol oxide A (47.76%), (<em>E</em>)-<em>β</em>-Farnesene (12.75 %), bisabolol oxide B (3.47%), and bisabolene oxide (2.46%). The fumigant and contact insecticidal effects of these oils were determined against <em>Sitophilus granarius</em>, <em>S. oryzae</em> (Coleoptera: Curculionidae), <em>Tribolium confusum,</em> and <em>T. castaneum</em> (Coleoptera: Tenebrionidae). Additionally, the ovicidal effect of the oils was tested against <em>T. confusum</em> and <em>Oryzaephilus surinamensis</em> (Coleoptera: Silvanidae). The highest fumigant toxicity was observed against <em>S. granarius</em>, <em>S. oryzae,</em> and <em>T. confusum</em> (74.9–96.6% mortality) at the 20% application dose. The fumigant effect of the oils against <em>T. castaneum</em> was lower than the effect observed for other insect species. The highest contact toxicity was observed against <em>S. granarius</em> and <em>S. oryzae</em> (100% mortality) at a 100 μL/mL application dose. In terms of ovicidal efficacy, the oils obtained from Istanbul and Bursa were 19.7–37.7% effective on <em>T. confusum</em> eggs, while this ratio was 53.4–48.3% on <em>O. surinamensis</em>, respectively. Acetylcholinesterase inhibition of the oils was also investigated, and both oils produced mediocre activity.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424040","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":"Microbiological stability of Hermetia illucens meal subjected to two different heat treatments","authors":"","doi":"10.1016/j.jspr.2024.102440","DOIUrl":"10.1016/j.jspr.2024.102440","url":null,"abstract":"<div><div>The use of processed insect proteins for poultry and pig feed has been authorized since August 2021 (Regulation EU, 2021/1372). It has been already authorized for aquaculture since 2017 (Regulation EU, 2017/893). The adoption of this Regulation has boosted the European insect industry. However, there is currently little information regarding the evaluation of the shelf-life of insect-based feeds. The present work analyzed meals of <em>Hermetia illucens</em> that underwent two different treatments. The first treatment involved pre-sterilization at 80 °C for 2 h, and after that the larvae were subjected to treatment at 65 °C. The second treatment consisting in a heat treatment at 65 °C without pre-sterilization. The analysis performed for specific microbiological parameters, such as presence of β-glucuronidase positive <em>Escherichia coli</em>, <em>Enterobacteriaceae</em>, colony count at 30 °C, <em>Salmonella</em> spp., <em>Listeria monocytogenes</em>, <em>Bacillus cereus</em>, <em>Clostridium perfringens</em>, coagulase-positive <em>Staphylococcus</em>, yeasts and moulds, did not reveal any concerns about bacteria counts or pathogen presence.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424312","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}

{"title":"Advanced hybrid empirical mode decomposition, convolutional neural network and long short-term memory neural network approach for predicting grain pile humidity based on meteorological inputs","authors":"","doi":"10.1016/j.jspr.2024.102427","DOIUrl":"10.1016/j.jspr.2024.102427","url":null,"abstract":"<div><div>Grain pile humidity prediction is beneficial to ensure food security, and establishing an effective humidity prediction model is of great significance to the field of grain storage. By taking meteorological and grain temperature data as inputs, we propose a prediction model that combines Empirical Mode Decomposition (EMD), Convolutional Neural Network (CNN), and Long Short-Term Memory Network (LSTM). The model was verified in experimental data of three different storage layers of grain piles. The prediction results show that the proposed EMD-CNN-LSTM model has better prediction accuracy than the other three comparison models: CNN-LSTM, CNN and LSTM. From the average results of the entire granary, the MAE, RMSE, and MAPE results are 0.14, 0.18, and 0.25%, respectively, and the MAE value is 44% higher than the previous research method that does not consider meteorological factors. The MAE, RMSE, and MAPE results of the CNN-LSTM method with EMD decomposition were improved by 58%, 53% and 58% respectively compared with the method without EMD decomposition. It can be concluded that taking meteorological factors as model input and integrating EMD methods can improve prediction accuracy. The constructed prediction model shows effective prediction results in different storage layers of grain pile, which provides new insights for ensuring food security and also provides valuable references for multivariate time series prediction in other fields.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358626","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":"Olfactory cues in the host-location of the European ecto-parasitoids Sclerodermus cereicollis and Sclerodermus domesticus (Hymenoptera: Bethylidae)","authors":"","doi":"10.1016/j.jspr.2024.102441","DOIUrl":"10.1016/j.jspr.2024.102441","url":null,"abstract":"<div><div>Chemical ecology regarding the flat wasps of the genus <em>Sclerodermus</em> is poorly known and deserves further attention in order to improve the efficacy of these bethylid species as biological control agents against xylophagous insects and stored product insect pests. In the present investigation the host location process of <em>S. cereicollis</em> and <em>S. domesticus</em>, ectoparasitoids attacking xylophagous insects infesting decaying or dead or worked wood, has been studied. Bioassays in Y-tube olfactometer, still air olfactometer and open arena have been performed. Females of both species, in agreement with the typical behaviour of generalist parasitoids, revealed to be able to perceive and respond to different volatile chemicals produced by the host habitat (seasoned-wood sawdust from pine and beech) and host frass of the two longhorn beetles <em>Hylotrupes bajulus</em> and <em>Trichoferus holosericeus</em>. In addition, they can perceive non-volatile chemicals from the host cuticle (cuticular hydrocarbons of the two longhorn beetles). The two species revealed numerous similarities and some differences in their behaviour. Such differences highlight the importance of clarifying the chemical ecology of the different species of the genus <em>Sclerodermus</em> a taxon in which the taxonomy and biology of the different species are still unclear.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358531","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}

{"title":"Pressures in squat steel silo with flat bottom storing maize grain","authors":"","doi":"10.1016/j.jspr.2024.102424","DOIUrl":"10.1016/j.jspr.2024.102424","url":null,"abstract":"<div><div>Squat steel silos with a flat bottom are used worldwide on farms to store granular products with high commercial value, especially soybeans and maize. However, many questions remain unanswered regarding storage and estimation of pressures in squat silos. In addition, there are few full-scale experimental stations in the world to facilitate the study of silo pressures, hindering progress in this area. The objective of this article is to analyze the pressures in a pilot silo test station obtained from tests performed using free-flowing product (maize). The results obtained were compared with Eurocode 1, part 4, ANSI/ASAE S433.1 and the Rankine-Calil model. The filling height of the product used was approximately 0.75 m (H/D ratio equal to 1), considering a flat bottom configuration with concentric discharge. Pressures were evaluated in the filling and discharge stages. Normal and friction pressures in the silo, overpressure coefficient and stored product weight were recorded. The results obtained show that research advances in the area are urgently needed for squat silos. The horizontal pressures showed peaks that exceeded the standards: Eurocode 1, part 4 and ANSI/ASAE S433.1. Only the Rankine-Calil model was adequate compared to the values obtained experimentally. Friction pressures were not consistent with values theoretically obtained by Eurocode 1, part 4 and ANSI/ASAE S433.1. An overpressure at the bottom of the pilot silo was observed. It is suggested that the overpressure coefficient be considered in the calculation of pressures in the dynamic stage.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358625","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":"Invasive alien plant species aqueous extracts in a war against the granary weevil (Sitophilus granarius [L.]) – are they long-term effective or can they only win the Battle of Cannae?","authors":"","doi":"10.1016/j.jspr.2024.102434","DOIUrl":"10.1016/j.jspr.2024.102434","url":null,"abstract":"<div><div>This study investigates the effectiveness of plant-based extracts in repelling the granary weevil (<em>Sitophilus granarius</em>), a common storage pest causing significant economic losses. The selected plant species (Canadian goldenrod, giant goldenrod, indigo bush, staghorn sumac, and tree of heaven), were examined for their repellent effects on weevils in grain samples. Surprisingly, the short-term repellent effects observed after 24 h diminished after 3 days, suggesting potential challenges for practical applications, especially in long-term grain storage. Temperature emerged as a significant environmental factor, influencing weevil behavior. Lower temperatures created an illusion of increased effectiveness, while higher temperatures accelerated weevil reproduction. Commercial product NeemAzal, despite its reputation for effectiveness, proved the least potent among all treatments, raising questions about its applicability in such cases. Progeny emergence tests indicated no significant differences between treatments, emphasizing the ineffectiveness of the extracts in sustaining long-term repellent effects. The study concludes that while plant-based extracts may offer short-term victories in pest control, their long-term efficacy remains uncertain. The complex interplay of factors, including temperature and humidity, highlights the challenges in developing sustainable and practical solutions for grain storage pest control, necessitating careful consideration by real-world users.</div></div>","PeriodicalId":17019,"journal":{"name":"Journal of Stored Products Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358624","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}