Journal of economic entomology最新文献

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Predatory capacity of Lasioseius lindquisti (Acari: Blattisociidae) and Lasioseius scapulatus (Acari: Blattisociidae) on Megalurothrips usitatus (Thysanoptera: Thripidae).
Journal of economic entomology Pub Date : 2025-01-02 DOI: 10.1093/jee/toae309
Yilin Zhu, Yuanming Chi, Chen Yu, Mingyue Feng, Maoqing Li, Yanyu Chen, Wangpeng Shi
{"title":"Predatory capacity of Lasioseius lindquisti (Acari: Blattisociidae) and Lasioseius scapulatus (Acari: Blattisociidae) on Megalurothrips usitatus (Thysanoptera: Thripidae).","authors":"Yilin Zhu, Yuanming Chi, Chen Yu, Mingyue Feng, Maoqing Li, Yanyu Chen, Wangpeng Shi","doi":"10.1093/jee/toae309","DOIUrl":"https://doi.org/10.1093/jee/toae309","url":null,"abstract":"<p><p>Megalurothrips usitatus (Bagnall) (Thysanoptera: Thripidae) is an important pest of cowpeas, Vigna unguiculata (L.) Walp., and can cause severe damage to the crop. Lasioseius lindquisti (Tseng) (Acari: Blattisociidae) and Lasioseius scapulatus (Kennett) (Acari: Blattisociidae) are 2 mites used against M. usitatus in Hainnan, China. The functional responses of these mites were examined in the laboratory. Lasioseius lindquisti showed a type III functional response, with a maximum prey consumption of 22.38 ± 0.63 per day. Its optimal search density for each unit in this experiment was 10.27 ± 0.50 per day. Lasioseius scapulatus showed a type II functional and an attack rate on 1st instars of M. usitatus of 0.83 ± 0.23. The handling time (h) of L. scapulatus was 0.074 ± 0.018 (means ± SE), while the maximum attack rate (T/Th) of adult females on 1st instar thrips was 13.51. Our results showed that both L. lindquisti and L. scapulatus are potentially useful predators of M. usitatus.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142924081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A low cost and labor-efficient method for rearing an invasive beetle, Carpophilus truncatus (Coleoptera: Nitidulidae).
Journal of economic entomology Pub Date : 2025-01-01 DOI: 10.1093/jee/toae290
Raman Bansal, Jhalendra Rijal, David Haviland, Sudan Gyawaly, Houston Wilson
{"title":"A low cost and labor-efficient method for rearing an invasive beetle, Carpophilus truncatus (Coleoptera: Nitidulidae).","authors":"Raman Bansal, Jhalendra Rijal, David Haviland, Sudan Gyawaly, Houston Wilson","doi":"10.1093/jee/toae290","DOIUrl":"https://doi.org/10.1093/jee/toae290","url":null,"abstract":"<p><p>The carpophilus beetle, Carpophilus truncatus Murray, 1864 (Coleoptera: Nitidulidae) is an invasive pest recently detected in California's tree nut crop orchards. Here we report a simple, labor-saving, and cost-effective rearing system for C. truncatus utilizing banana and industrial sand components. Banana slices served as both a larval and adult diet source as well as a moisture source to facilitate pupation within the underlying sand. The combination of banana and sand within a single container successfully supported the development of all C. truncatus life stages over multiple generations. The average developmental times recorded in rearing units placed under environmental conditions of 26°C, 60% relative humidity, and 16:8 h (light:dark) photoperiod were: egg to wandering stage larva, 7.54 days; wandering stage to adult, 11.08 days; and adult longevity, 94.33 days. These banana-sand rearing units facilitated the easy collection of all C. truncatus developmental stages, except for eggs. To address this challenge, standalone oviposition chambers utilizing a lima bean-based agar diet were evaluated. These chambers effectively enabled the collection as well as tracking of eggs for different research purposes. The average developmental time recorded for eggs, from initial oviposition to neonate hatching, was 3.20 days. These rearing as well as egg collection approaches provide cost-effective tool to investigate biology, life-history traits and ecology, as well as evaluate approaches to control this invasive pest.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142916528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Temperature effect on the efficacy of 3 entomopathogenic nematode isolates against larvae of the lesser mealworm, Alphitobius diaperinus (Coleoptera: Tenebrionidae).
Journal of economic entomology Pub Date : 2024-12-31 DOI: 10.1093/jee/toae292
Eirini Karanastasi, Anna Nikorezou, Maria Stamouli, Anna Skourti, Maria C Boukouvala, Nickolas G Kavallieratos
{"title":"Temperature effect on the efficacy of 3 entomopathogenic nematode isolates against larvae of the lesser mealworm, Alphitobius diaperinus (Coleoptera: Tenebrionidae).","authors":"Eirini Karanastasi, Anna Nikorezou, Maria Stamouli, Anna Skourti, Maria C Boukouvala, Nickolas G Kavallieratos","doi":"10.1093/jee/toae292","DOIUrl":"https://doi.org/10.1093/jee/toae292","url":null,"abstract":"<p><p>The lesser mealworm Alphitobius diaperinus Panzer (Coleoptera: Tenebrionidae), an important insect pest of stored-product commodities and poultry production systems, is regarded among the most difficult species to control. It has developed resistance to many chemical insecticides, and though various cultural and biological methods have been assessed and identified as possible factors for its control, none are currently implemented. Entomopathogenic nematodes are often successfully employed as alternative to chemicals biocontrol agents of various insect species, including pests of stored products; nevertheless, their evaluation as potential biocontrol factors of the lesser mealworm is not efficiently scrutinized. In the current study, single A. diaperinus larvae were exposed to six doses of Heterorhabditis bacteriophora Poinar (Rhabditida: Heterorhabditidae), Steinernema carpocapsae (Weiser) (Rhabditida: Steinernematidae), and Steinernema feltiae (Filipjev) (Rhabditida: Steinernematidae), for 4 and 8 d, and mortality was recorded at 3 different temperature regimes, i.e., 25 oC, 30 oC, and 35 oC. The study concludes that S. carpocapsae and S. feltiae are both highly virulent against A. diaperinus larvae and may be considered as promising biological control agents for reducing lesser mealworm infestations when applied at a rate of 70 IJs/cm2 at 25 oC. When assessed at 30 oC, both species were effective at the same rate though causing lower mortality of ~60% and ~50%, respectively, whereas their efficacy was low at 35 oC.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Insights into adult worker foraging dynamics within a Bombus terrestris (Hymenoptera: Apidae) colony.
Journal of economic entomology Pub Date : 2024-12-31 DOI: 10.1093/jee/toae295
Feiran Wang, Jiangrui Dai, Lixing Xie, Xing Chen, Shengnan Guo, Jian Wang, Xudong Yao, Muhammad Imran, Hongmei Li-Byarlay, Shudong Luo
{"title":"Insights into adult worker foraging dynamics within a Bombus terrestris (Hymenoptera: Apidae) colony.","authors":"Feiran Wang, Jiangrui Dai, Lixing Xie, Xing Chen, Shengnan Guo, Jian Wang, Xudong Yao, Muhammad Imran, Hongmei Li-Byarlay, Shudong Luo","doi":"10.1093/jee/toae295","DOIUrl":"https://doi.org/10.1093/jee/toae295","url":null,"abstract":"<p><p>Bombus terrestris, an important eusocial insect, plays a vital role in providing pollination services for both wild plants and greenhouse crops. For the development of the colonies, the workers must leave the hives to collect nectar and pollen. However, limited findings about the foraging behavior of B. terrestris workers (e.g., first foraging period, total foraging duration, and daily foraging bouts). Here, radio-frequency identification (RFID) technology was used to monitor the continuously foraging behavior of B. terrestris workers during August and October, 2021 and August, 2023. The findings of our study indicate that the participation rate in the foraging activity among adult workers was 65.07%. In addition, it was observed that adult workers initiate their initial foraging activities on the second day, with the majority commencing their first foraging endeavors between the ages of 3 and 5 days. It is noteworthy that worker bees will remain within the confines of the hive for the entirety of their lifespan, if they do not begin their first foraging within the first 12 days. Our results also revealed that workers were mainly foraged from 7:00 AM to 10:00 AM and 14:00 PM to 17:00 PM in August, while, and predominantly from 12:00 to 15:00 in October. Furthermore, it was shown that foraging efficiency was notably greater during seasons marked by a plentiful availability of flower resources. This was supported by an observed rise in the frequency of daily foraging activities and the overall duration of foraging.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Managed honeybees and soil nitrogen availability interactively modulate sunflower production in intensive agricultural landscapes of China.
Journal of economic entomology Pub Date : 2024-12-31 DOI: 10.1093/jee/toae280
Panlong Wu, Yi Zhao, Jinyi Yang, Keyuan Wu, Jinrui Bai
{"title":"Managed honeybees and soil nitrogen availability interactively modulate sunflower production in intensive agricultural landscapes of China.","authors":"Panlong Wu, Yi Zhao, Jinyi Yang, Keyuan Wu, Jinrui Bai","doi":"10.1093/jee/toae280","DOIUrl":"https://doi.org/10.1093/jee/toae280","url":null,"abstract":"<p><p>Insects provide important pollination services for cops. While land use intensification has resulted in steep declines of wild pollinator diversity across agricultural landscapes, releasing managed honeybees has been proposed as a countermeasure. However, it remains uncertain whether managed honeybees can close the pollination gap of sunflower (Helianthus annuus L. [Asterales: Asteraceae]) in areas lacking wild pollinators, and how the benefits of honeybees to sunflower production are modulated by soil nutrients. We investigated the effects of 3 pollination treatments (open, self and hand pollination) on sunflower yield parameters. We also estimated the pollination efficiency of managed honeybees (Apis mellifera L. [Hymenoptera: Apidae]), and analyzed the effects of honeybee visitation and soil nitrogen on sunflower yield parameters. Insect pollinators contributed 73% of seed set and 69% of the weight of filled seeds per head in the open pollination of sunflowers, but large pollination deficits still existed. Insect pollination may enhance sunflower yield by augmenting the number and weight of filled seeds per head, but not by altering the total number of seeds. Except for the total number of seeds per head, yield parameters increased significantly with the number of honeybee visits. Low nitrogen accelerated the positive effect of honeybee pollination on sunflowers, and alleviated the negative effect of distance of beehives on honeybee visitation rate. We conclude that managed honeybees could be used to pollinate sunflowers in areas with the shortage of wild pollinators, and sunflower production may benefit from shortening the distance of beehives and lowing of nitrogen fertilizer inputs.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142908037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The influence of crop and leaf position on thrips (Thysanoptera: Thripidae) oviposition in cotton, soybean, and peanut seedlings.
Journal of economic entomology Pub Date : 2024-12-26 DOI: 10.1093/jee/toae294
Giovani Rossi, Jessica B Mahas, Anitha Chitturi, Scott H Graham, Alana L Jacobson
{"title":"The influence of crop and leaf position on thrips (Thysanoptera: Thripidae) oviposition in cotton, soybean, and peanut seedlings.","authors":"Giovani Rossi, Jessica B Mahas, Anitha Chitturi, Scott H Graham, Alana L Jacobson","doi":"10.1093/jee/toae294","DOIUrl":"https://doi.org/10.1093/jee/toae294","url":null,"abstract":"<p><p>Thrips (Thysanoptera: Thripidae) can injure seedling cotton (Gossypium hirsutum L.), soybean (Glycine max (L.) Merr.), and peanut (Arachis hypogaea L.) crops in the southern United States. The planting window and timing of thrips infestations into these crops overlap in the region, but thrips preference for oviposition has not been investigated. We evaluated thrips preference for cotton, soybean, and peanut by counting eggs, immatures, and adults at the cotyledon to 4 true leaf stages. Peanut was significantly more attractive for oviposition than cotton and soybean. Oviposition in cotton was significantly higher in the cotyledons than the other leaves. The highest oviposition in soybeans also occurred in the cotyledons but differed only significantly from the fourth true leaf. In all crops, there was no significant difference among oviposition in the true leaves. The highest number of immatures were found on cotton, followed by peanut and then soybean, while adults were evenly distributed among crops. Our results suggest that while peanut is preferred for oviposition, this crop may not facilitate immature development and survival as effectively when compared with cotton. This study presents an initial examination of crop selection by thrips under field conditions and suggests peanut may be the preferred oviposition host.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel tank-mix formulation increases the efficacy of alphabaculoviruses on different phylloplanes.
Journal of economic entomology Pub Date : 2024-12-26 DOI: 10.1093/jee/toae282
Ali Mehrvar, Solmaz Ghanbari, Gökhan Söylemezoğlu, Umut Toprak
{"title":"A novel tank-mix formulation increases the efficacy of alphabaculoviruses on different phylloplanes.","authors":"Ali Mehrvar, Solmaz Ghanbari, Gökhan Söylemezoğlu, Umut Toprak","doi":"10.1093/jee/toae282","DOIUrl":"https://doi.org/10.1093/jee/toae282","url":null,"abstract":"<p><p>Spodoptera littoralis Boisduval (Lepidoptera: Noctuidae) and Spodoptera exigua Hübner (Lepidoptera: Noctuidae) pose substantial threats to many crops, necessitating the exploration of biopesticides as potential chemical alternatives. One alternative is baculoviruses; however, their instability in the field has hindered their widespread use. Host plant phylloplane affects baculovirus activity at varying levels in different host plants. Formulation contributes significantly to optimizing the baculoviral stability on different phylloplanes against environmental conditions; however, it is expensive and difficult to make in developing or nondeveloped countries. In the current study, we developed a simple tank-mix application (MBF-Tm5) for immediate use, resembling the characteristics of a suspension concentrate formulation for Spodoptera littoralis nucleopolyhedrovirus (SpliNPV) and Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV). We examined their biological activity against 2nd instar larvae first on an artificial diet under laboratory conditions and on eggplant and pepper phylloplane in greenhouse conditions compared to plain viruses. This formulation exhibited no significant improvement in the biological activity of both viruses on an artificial diet under laboratory conditions but significantly improved the biological activity of both viruses on both plants under greenhouse conditions. The original activity remaining (OAR%) of both unformulated and formulated viruses decreased over time under greenhouse conditions; however, the OAR value of both viruses on eggplants was significantly higher than on pepper plants. Overall, the tank-mix simple formulation of baculoviruses might be a great alternative for improved stability in nature, providing better control.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphological and biological characterization of Spermophagus niger (Motschulsky, 1866) (Coleoptera: Chrysomelidae) from four West African countries. 西非四国 Spermophagus niger(Motschulsky,1866 年)(鞘翅目:蝶形目)的形态和生物学特征。
Journal of economic entomology Pub Date : 2024-12-26 DOI: 10.1093/jee/toae285
Emmanuel Kabore, Jean Christophe Koussoube, Koï Wenceslas Kam, Antoine Sanon, Zakaria Ilboudo
{"title":"Morphological and biological characterization of Spermophagus niger (Motschulsky, 1866) (Coleoptera: Chrysomelidae) from four West African countries.","authors":"Emmanuel Kabore, Jean Christophe Koussoube, Koï Wenceslas Kam, Antoine Sanon, Zakaria Ilboudo","doi":"10.1093/jee/toae285","DOIUrl":"https://doi.org/10.1093/jee/toae285","url":null,"abstract":"<p><p>In Burkina Faso and many West African countries, Spermophagus niger (L.) is the main insect pest of Hibiscus sabdariffa seeds stored with considerable damage. Variations in bioclimatic conditions can lead to significant changes in the morphology and biology of populations of the same insect species, leading to strains that are morphologically and biologically different and that would react differently to a given control method. In this study, strains of S. niger from Niger (Niamey), Ghana (Navrongo), Benin (Parakou) and five localities in Burkina Faso (Diébougou, Banfora, Saaba, Mani, and Manga) are studied under controlled conditions (32 °C ± 0.1, 43% ± 1 r.h., L: D 12:12). The results showed that males from Niamey and Parakou lived longer, while females from Niamey and Diébougou had a statistically high longevity. The larval survival rate of the Niamey strain was significantly lower than Manga, Parakou, and Navrongo. The Niamey strain recorded adults compared to the other strains. In terms of weight, the females and males from Banfora and Niamey were statistically heavier than other strains. At the end of the study, S. niger' strains showed different morphologies in terms of weight. Furthermore, adult longevity, larval survival rate, and emergence rate were strain dependent.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Climate matching models for Ceratapion basicorne (Coleoptera: Apionidae), a biocontrol agent of yellow starthistle.
Journal of economic entomology Pub Date : 2024-12-25 DOI: 10.1093/jee/toae299
Brittany S Barker
{"title":"Climate matching models for Ceratapion basicorne (Coleoptera: Apionidae), a biocontrol agent of yellow starthistle.","authors":"Brittany S Barker","doi":"10.1093/jee/toae299","DOIUrl":"https://doi.org/10.1093/jee/toae299","url":null,"abstract":"<p><p>Ceratapion basicorne (Illiger) (Coleoptera: Apionidae), a weevil native to Europe and western Asia, shows promise for enhancing the control of yellow starthistle (Centaurea solstitialis L.), an invasive annual forb in the western United States. However, a paucity of data on this biocontrol agent's environmental constraints has made it difficult to assess the suitability of potential release locations. Climate matching models were developed for C. basicorne to help identify areas of the western United States with similar climates to the source area of breeding colonies being used for releases (home location). The models used climate variables derived from daily estimates of minimum temperature, maximum temperature, precipitation, and soil moisture for a 30-yr period spanning 1991-2020 at 1 km2 resolution. Of the areas where C. solstitialis is known to occur, the Central California Foothills, Eastern Cascades Foothills, Columbia Plateau, and mountainous parts of northcentral Utah had the most similar climates to the home location. Of these areas, the Eastern Cascades foothills in northeastern California and Wasatch Range in Utah occurred at a similar latitude as the home location, which may be important to consider if C. basicorne has photoperiodic diapause. The least similar climates occurred in wet coastal regions, high-elevation (cold) mountains, and hot deserts; however, C. solstitialis has not been detected in most of these areas. The development of process-based models for predicting the establishment of this agent will require a more detailed understanding of the agent's requirements for development and survival.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142886356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimating optimal temperature conditions for growth, development, and reproduction of Tenebrio molitor (Coleoptera: Tenebrionidae).
Journal of economic entomology Pub Date : 2024-12-25 DOI: 10.1093/jee/toae298
Juan A Morales-Ramos, Anthony Macchiano, Maria Guadalupe Rojas
{"title":"Estimating optimal temperature conditions for growth, development, and reproduction of Tenebrio molitor (Coleoptera: Tenebrionidae).","authors":"Juan A Morales-Ramos, Anthony Macchiano, Maria Guadalupe Rojas","doi":"10.1093/jee/toae298","DOIUrl":"https://doi.org/10.1093/jee/toae298","url":null,"abstract":"<p><p>The yellow mealworm, Tenebrio molitor L., is one of the most important industrialized insects worldwide. As a poikilotherm, T. molitor requires a temperature-regulated environment for its farming. Currently, the farming of T. molitor uses temperatures between 29 and 31°C determined to be optimal for maximizing growth. This study was aimed to test and determine optimal temperature for T. molitor impacting all stages including their development, reproduction, and fitness. Pupae of T. molitor were exposed to 8 different temperatures (18, 21, 24, 27, 30, 33, 36, and 39°C). Developmental rates (=1/d to develop) were calculated at 8 temperatures and fitted in a poikilotherm model to determine the temperature with the highest developmental rate (developmental maximum, To). The developmental maximum was 33°C and the thermal maximum (tm) (lethal temperature) was 39°C. The biological and demographic parameters of T. molitor were compared at 3 favorable temperatures below the To (31, 29, and 27°C) to determine the fitness of T. molitor populations. Fecundity and egg viability were the highest at 27°C (5.25 eggs/female/d and 73.99%, respectively) and the lowest at 31°C (1.55 eggs/female/d and 27.14%, respectively). The shortest larval development time was observed at 27°C and the longest at 31°C (142.81 and 161.97 d, respectively). The highest fitness was observed at 27°C with a population doubling time of 32.78 d compared to 40.58 and 239.4 d at 29 and 31°C, respectively. In conclusion, 27°C is closer to the optimal temperature for T. molitor productivity than 29°C, thus reducing its farming energy needs.</p>","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142886358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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