Journal of Asia-pacific Entomology最新文献

{"title":"Histological and molecular analysis of selenium synergistic RNAi of Dynamin gene in Bombyx mori","authors":"Run-Hui Ma ,&nbsp;Ting-Ting Hong ,&nbsp;Fei Hu ,&nbsp;Kiran Thakur ,&nbsp;Zhao-Jun Wei","doi":"10.1016/j.aspen.2025.102486","DOIUrl":"10.1016/j.aspen.2025.102486","url":null,"abstract":"<div><div>Selenium (Se) is an essential element for animals, regulating various biochemical processes as well as growth and development. Our previous study showed that 50 μM Se significantly affected the silkworm, <em>Bombyx mori</em> by targeting <em>dynamin</em>, a key endocytosis protein, at 24 h. Here, we explored the hemolymph metabolite levels and silk gland gene expression in <em>B. mori</em> under different treatments. Non-targeted metabolomics analyses revealed 297 differential metabolites (80 up-regulated and 217 down-regulated) in the <em>dynamin</em> knockdown group and 295(204 up and 91 down) in the Se additive group, including amino acids, sugars, lipids, nucleotide metabolites, and their derivatives. The knockdown enhanced aspartate biosynthetic but weakened glycolysis/gluconeogenesis, the TCA cycle, purine metabolism, alanine and glutamate metabolic pathways. In contrast, Se significantly enhanced glycolysis/gluconeogenesis, the TCA cycle, purine metabolism, and alanine,/aspartate/ glutamate pathways while inhibiting lysine biosynthesis. Transcriptomic analysis of the silk gland identified 705 differentially expressed genes (DEGs) (320 up and 385 down) in the knockdown group and 2907 DEGs (2714 up and 193 down) in the Se group. Knockdown affected protein processing, MAPK signaling, and endocytosis, while Se impacted glutathione metabolism, spliceosome, and peroxisomal pathways. These DEGs are linked to protein processing, energy provision, and antioxidants. This study elucidates the metabolic and transcriptional changes due to Se-associated RNAi stress (<em>dynamin</em> knockdown) on silkworms, highlighting their roles in key physiological processes.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 4","pages":"Article 102486"},"PeriodicalIF":1.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Field evidence of Plesiochrysa ramburi (Neuroptera: Chrysopidae) establishment and predation on invasive mealybugs in the Sakishima Islands, Japan","authors":"Masayuki Hayashi ,&nbsp;Yuta Owashi ,&nbsp;Tatsuya Yoshida","doi":"10.1016/j.aspen.2025.102488","DOIUrl":"10.1016/j.aspen.2025.102488","url":null,"abstract":"<div><div>Spreading invasive pest insects cause substantial agricultural damage worldwide. Their natural enemies can also expand their distributions, thus presenting potential opportunities for biological control. The green lacewing <em>Plesiochrysa ramburi</em> (Schneider), widely distributed from Southeast Asia to Australia, Polynesia, and Micronesia, has potential as a natural enemy for agricultural pest control owing to its predation on economically important pest mealybugs. Only a few specimens have been recorded in Japan in recent years, and the species’ ecological characteristics in the region remain poorly understood. Here, we recorded multiple adults and immatures—eggs, larvae, and pupae—of <em>P. ramburi</em> associated with invasive pest mealybugs in the Sakishima Islands, Japan. Collection of the lacewings from multiple sites on Ishigaki Island and their observation on Miyako Island, over 100 km away, confirms widespread establishment in the region. Immature stages were closely associated with colonies of three invasive mealybug species, <em>Paracoccus marginatus</em>, <em>Phenacoccus solenopsis</em>, and <em>Maconellicoccus hirsutus</em>. Larvae of <em>P. ramburi</em>, covered with wax secretions from their prey, were observed preying on the mealybugs. We discuss the potential for <em>P. ramburi</em> to continue expanding its distribution and its potential as a natural enemy for pest control in Japan.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 4","pages":"Article 102488"},"PeriodicalIF":1.3,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-mode evaluation of five essential oils for rapid knockdown and seed protection against Acanthoscelides obtectus (Coleoptera: Chrysomelidae)","authors":"Hilal Susurluk ,&nbsp;Umut Toprak","doi":"10.1016/j.aspen.2025.102483","DOIUrl":"10.1016/j.aspen.2025.102483","url":null,"abstract":"<div><div>This study evaluated the chemical composition, fumigant toxicity, and residual efficacy of five commercial essential oils (EOs), <em>Origanum vulgare</em> (L.) (Lamiaceae), <em>Syzygium aromaticum</em> (L.) (Myrtaceae), <em>Eucalyptus globulus</em> Labill. (Myrtaceae), <em>Rosmarinus officinalis</em> (L.) (Lamiaceae), and <em>Lavandula angustifolia</em> Miller (Lamiaceae), against <em>Acanthoscelides obtectus</em> (Say, 1831) (Coleoptera: Chrysomelidae) under laboratory conditions. Gas chromatography–mass spectrometry (GC-MS) analysis identified the dominant compound in each essential oil: carvacrol in <em>O</em>. <em>vulgare</em>, eugenol in <em>S</em>. <em>aromaticum</em>, 1,8-cineole in <em>E</em>. <em>globulus</em>, α-pinene in <em>R</em>. <em>officinalis</em>, and linalool in <em>L</em>. <em>angustifolia</em>. Fumigant bioassays revealed that <em>L</em>. <em>angustifolia</em> exhibited the fastest and most potent adulticidal effect, with 100 % mortality at 1.5 µL within 24 h. In post-infestation trials, <em>R</em>. <em>officinalis</em> provided the highest suppression of adult emergence (99.05 %), followed by <em>O</em>. <em>vulgare</em> and <em>E</em>. <em>globulus</em>. Pre-infestation treatments revealed that <em>O</em>. <em>vulgare</em> completely prevented adult emergence and seed damage across all concentrations, even after 45 days. The results highlight both the acute and long-lasting protective actions of EOs, suggesting their suitability as eco-friendly alternatives for managing <em>A</em>. <em>obtectus</em> in stored beans.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 4","pages":"Article 102483"},"PeriodicalIF":1.3,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Can aromatic and medicinal plants effectively control Tylenchulus semipenetrans? Evidence from in vitro and in vivo studies","authors":"Btissam Zoubi ,&nbsp;Fouad Mokrini ,&nbsp;Meriem Rafya ,&nbsp;Abderrazak Benkebboura ,&nbsp;Oumaima Akachoud ,&nbsp;Ghizlane Krif ,&nbsp;Ghoulam Cherki ,&nbsp;Abdelilah Iraqi Housseini ,&nbsp;Ahmed Qaddoury","doi":"10.1016/j.aspen.2025.102482","DOIUrl":"10.1016/j.aspen.2025.102482","url":null,"abstract":"<div><div><em>Tylenchulus semipenetrans</em> is a highly damaging obligate plant parasitic nematode (PPN) that poses a significant threat to citrus crops. The use of chemical nematicides has proven effective in reducing <em>T. semipenetrans</em> populations; however, repeated use can have negative environmental impacts, necessitating the adoption of more ecological strategies. The current study aimed to evaluate the nematicidal effect of three aromatic and medicinal plants (AMPs), <em>Rosmarinus officinalis</em>, <em>Laurus nobilis</em> and <em>Verbena officinalis</em> against <em>T. semipenetrans</em> in terms of juvenile J2 mortality and eggs hatch inhibition under greenhouse and laboratory conditions. The results showed that all AMPs aqueous extracts exhibited toxicity against <em>T. semipenetrans</em>, with J2 mortality ranging between 25.85 % and 75.17 %, compared to 1.0 to 13.6 % in the control treatment. Egg hatching varied between 0 % and 66 %, compared to 73 to 95 % in control treatment. Toxicity increased with increasing AMPs aqueous extract concentration and incubation period, reaching more than 55.44 % mortality after 96 h and complete egg hatching inhibition after 144 h of incubation at an <em>R. officinalis</em> aqueous extract concentration of 10 %. In the greenhouse experiment, the aqueous extract of <em>R. officinalis</em> was highly active against <em>T. semipenetrans,</em> resulting in a substantial reduction in nematode populations, with counts ranging from 475 nematodes/100 g of soil and 122 nematodes/10 g of roots, compared to populations of 997.30 nematodes/100 g of soil and 185 nematodes/10 g of roots in the control treatment. The results of this study suggest that AMPs studied, could be used as a bionematicide product for managing <em>T. semipenetrans</em>.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 4","pages":"Article 102482"},"PeriodicalIF":1.3,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of trap color, monochamol and α-pinene release rates, and α-pinene enantiomers on the capture of Monochamus alternatus Hope (Coleoptera: Cerambycidae)","authors":"Min-Jung Huh ,&nbsp;Il-Kwon Park","doi":"10.1016/j.aspen.2025.102481","DOIUrl":"10.1016/j.aspen.2025.102481","url":null,"abstract":"<div><div><em>Monochamus alternatus</em> Hope (Coleoptera: Cerambycidae) is a known vector of the pine wood nematode (PWN), the causal agent of pine wilt disease. Effective control of this vector is essential to prevent the spread of PWN. Although pheromone traps have been employed to monitor the seasonal occurrence of <em>M</em>. <em>alternatus</em>, they have not yet been adopted as a practical method for field-level pest control. Therefore, to utilize pheromone traps for reducing vector populations, their trapping efficiency must be enhanced beyond the levels currently used for monitoring purposes. In this study, various pheromone trap conditions were evaluated through field trials to enhance the attraction of <em>M. alternatus</em> by modifying trap color, <em>α</em>-pinene enantiomers, and the release rates of pheromone and <em>α</em>-pinene. Among six tested colors, <em>M. alternatus</em> was most strongly attracted to black traps. In the enantiomer preference test for <em>α</em>-pinene, <em>M. alternatus</em> showed no significant difference in response among the different enantiomers. To assess the effects of pheromone and <em>α</em>-pinene release rates on <em>M. alternatus</em> capture, traps were baited with lures emitting varying release rates of monochamol (7–35 mg/day) and (−)-<em>α</em>-pinene (13–65 mg/day). Traps using the release rates of monochamol (35 mg/day) and (−)-<em>α</em>-pinene (52 mg/day) that resulted in the highest captures were 59.8 % more effective than those using the lowest release rates (monochamol: 7 mg/day; (−)-<em>α</em>-pinene: 13 mg/day). Notably, while there was no significant difference in male captures, traps with the optimal release rates captured 60.5 % more females. Although this study was conducted with limited replicates and relatively short trap spacing, the findings provide valuable insight into optimizing trap performance and lay the groundwork for developing more effective control strategies against <em>M</em>. <em>alternatus</em>.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 4","pages":"Article 102481"},"PeriodicalIF":1.3,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanoformulated amygdalin from agro-waste for aphid control and induction of tomato resistance mechanism","authors":"Fawzya AlOmari ,&nbsp;Zarah I. Alzahrani ,&nbsp;Layla Yousif Abdullah Al Hijab ,&nbsp;Somia M. Elagib ,&nbsp;Deyala M. Naguib","doi":"10.1016/j.aspen.2025.102480","DOIUrl":"10.1016/j.aspen.2025.102480","url":null,"abstract":"<div><div>Aphid infestation poses a significant threat to agricultural productivity, necessitating the development of eco-friendly and effective pest management strategies. In this study, we report the preparation, characterization, and insecticidal efficacy of nano-amygdalin—a nanoformulated compound derived from apricot seed meal—against the green peach aphid <em>Myzus persicae</em>, along with its impact on tomato (<em>Solanum lycopersicum</em>) plant defense responses. Amygdalin was extracted from apricot seed meal and immobilized onto silica nanoparticles synthesized from rice straw. The immobilization process achieved an efficiency of 92.4 % after 6 h. Transmission electron microscopy (TEM) and Fourier-transform infrared spectroscopy (FTIR) confirmed the successful formation and structural characteristics of the nano-amygdalin complex. Laboratory bioassays demonstrated that nano-amygdalin significantly reduced aphid survival and fecundity, with the highest tested concentration (0.5 mg/mL) decreasing survival to 12 % and fecundity to 0.65 nymphs/female/day. Furthermore, tomato plants treated with nano-amygdalin under aphid infestation showed enhanced growth and attenuated oxidative stress, evidenced by reduced hydrogen peroxide and malondialdehyde levels. Activities of defense-related enzymes, including peroxidase and polyphenol oxidase, were significantly elevated in treated plants. Notably, treated plants also exhibited increased levels of cell wall-bound phenolics and peroxidase, suggesting enhanced lignification as part of the induced defense mechanism. These findings highlight the potential of nano-amygdalin as a sustainable, plant-compatible biopesticide that not only suppresses aphid populations but also fortifies host plant defense pathways.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 4","pages":"Article 102480"},"PeriodicalIF":1.3,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic diversity and phylogenetic relationships among western and Asian honey bees, and Eristalis tenax collected in Myanmar","authors":"Saw Bawm ,&nbsp;Aye Pyae Pyae Khaing ,&nbsp;Hlaing Min Oo ,&nbsp;Myint Myint Mu ,&nbsp;Ngwe Chi Hmuu ,&nbsp;Aye Nyein Sandi Zaw ,&nbsp;Nyunt Lwin ,&nbsp;Hla Myet Chel ,&nbsp;Yadanar Khaing ,&nbsp;Shwe Yee Win ,&nbsp;Lat Lat Htun ,&nbsp;Shiro Murata ,&nbsp;Satoru Konnai ,&nbsp;Kazuhiko Ohashi ,&nbsp;Nariaki Nonaka ,&nbsp;Ryo Nakao ,&nbsp;Than Naing Tun","doi":"10.1016/j.aspen.2025.102479","DOIUrl":"10.1016/j.aspen.2025.102479","url":null,"abstract":"<div><div>Honey bees are valuable insects for humans in many ways and continue to benefit people’s livelihoods. Pollinator insects are essential for world food crops production. The aims of this study were to assess the genetic diversity and phylogenetic relationship among the honey bees and to conduct molecular characterisation of pollinator insect species in Myanmar. The Asian honey bee species (<em>Apis cerana</em> and <em>A. dorsata</em>), the European honey bee (<em>A. mellifera</em>) and pollinator insect (<em>Eristalis tenax</em>) collected from selected research stations were studied using partial sequences of the mitochondrial cytochrome <em>c</em> oxidase I (COI) gene. The obtained sequences were analysed using molecular evolutionary genetics and the median-joining haplotype network analysis. The phylogenetic tree divided the entire assemblage of honey bee species collected in Myanmar, including <em>A. mellifera, A. dorsata</em>, and <em>A. cerana</em>, into three major groups, along with those from other countries. The overall haplotype diversity (Hd = 0.9232) indicated a high level of genetic diversity among Myanmar honey bee populations, whereas the nucleotide diversity was relatively low for each population (π = 0.00128–0.03576). <em>A. mellifera</em> showed a substantial variation (P = 0.001) in molecular variants between populations and individuals within them. Two haplotypes were found in <em>A. mellifera</em> and one each for <em>A. cerana, A. dorsata,</em> and <em>E. tenax.</em> This baseline data strengthens our knowledge of the genetic status of indigenous and imported species in the country.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 4","pages":"Article 102479"},"PeriodicalIF":1.3,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of ethanol exposure and withdrawal on olfactory sensitivity and learning and memory in honeybees(Apis mellifera)","authors":"Zhiyue Yang ,&nbsp;Ting Xiong ,&nbsp;Daohao Xie,&nbsp;Minghua Yang,&nbsp;Yahui Li","doi":"10.1016/j.aspen.2025.102476","DOIUrl":"10.1016/j.aspen.2025.102476","url":null,"abstract":"<div><div>Alcohol abuse poses a global health concern. This study examines how alcohol exposure and withdrawal affect honeybees’ (<em>Apis mellifera</em>) learning, memory, and olfactory sensitivity areas still largely unknown. It provides scientific evidence to understand behavioral changes from alcohol and withdrawal. The study consisted of two experiments: (1) Acute ethanol exposure: honeybees were fed with sucrose solutions containing 5 %, 10 %, 20 %, and 30 % ethanol for 72 h; (2) Alcohol withdrawal experiment: The continuous exposure group was fed a 10 % ethanol solution for 10 days. The withdrawal group received ethanol for the first 5 days, then switched to a 50 % sucrose solution for the remaining 5 days. The control group was fed a 50 % sucrose solution all along. Daily mortality was recorded for all groups. On day 10, sucrose sensitivity and learning and memory abilities (via the proboscis extension response, PER) were tested. Our results demonstrated that Ethanol decreases honeybee survival in a dose − and time − dependent manner, and withdrawal increases mortality. Both continuous exposure and withdrawal seriously undermine honeybees’ learning and long − term memory, implying ethanol − induced cognitive damage is irreversible. Gene expression analysis shows that in the withdrawal group, <em>Mrjp1</em>, <em>CREB</em>, <em>Obp16</em>, and <em>Dop3</em> genes linked to bees’ neural activity have lower expression levels than the control group. <em>Mrjp1</em> and <em>CREB</em> expression are also lower than in the continuous exposure group. This study offers new evidence into alcohol’s effects on insect nervous systems, and provides insights into related disorders in human health.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 4","pages":"Article 102476"},"PeriodicalIF":1.3,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 antibacterial properties of zinc oxide nanoparticles (ZnO-NPs) synthesized from Phoebe zhennan leaf extract","authors":"Arshad Ali ,&nbsp;Kirshan Chand ,&nbsp;Chenghu Liu ,&nbsp;Asfandyar ,&nbsp;Ali Hassan ,&nbsp;Hammad Hassan ,&nbsp;Xiaolong Liu ,&nbsp;Min Lu","doi":"10.1016/j.aspen.2025.102474","DOIUrl":"10.1016/j.aspen.2025.102474","url":null,"abstract":"<div><div>Chemical insecticides are used to control most insect pests, which are harmful to the environment and humans. In this study, green synthesis of zinc oxide nanoparticles (ZnO-NPs) was carried out by using extracts from the<!--> <em>Phoebe zhennan</em> plant leaf. X-ray diffraction, transmission electron microscopy (TEM), scanning electron microscopy (SEM), ultraviolet–visible spectroscopy, and Fourier transform infrared spectroscopy (FTIR) confirmed the successful synthesis and structural characteristics of nanoparticles. The forest insect pest <em>Plagiodera versicolora</em> Laicharting is used to evaluate the bioactivity of nanoparticles. Mortality in <em>P. versicolora</em> was found to be dose- and time-dependent after different treatments of nanoparticles. The study determined the lethal concentration values (LC₅₀ and LC₉₀) of nanoparticles against <em>P. versicolora</em>, revealing a time-dependent efficacy with the LC₅₀ of 22.47 mg/L and LC₉₀ of 81.2 mg/L at 96 h. The findings revealed the lethal time values (LT₅₀ and LT₉₀) of the nanoparticles against <em>P. versicolora</em>, with maximum efficacy observed at a concentration of 50 mg/L, resulting in an LT₅₀ of 27.24 h and an LT₉₀ of 62.71 h. In addition, the<!--> <!-->antibacterial activity of nanoparticles was also evaluated against <em>Bacillus subtilis</em>, and the results showed significant inhibition of bacterial growth in a dose-dependent manner. The study demonstrated the potential of nanoparticles as an insect control and antimicrobial agent. This research provides valuable insights into the green synthesis of nanoparticles and emphasizes the need for further exploration of their safety and efficacy in various practical applications.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 4","pages":"Article 102474"},"PeriodicalIF":1.3,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The suitability of artificial diets containing diverse pollen grains to Helicoverpa armigera (Hübner): Population growth performance and antioxidant enzymes activities","authors":"Fatemeh Kefayat ,&nbsp;Seyed Ali Hemmati ,&nbsp;Arash Rasekh ,&nbsp;Fatemeh Nasernakhaei","doi":"10.1016/j.aspen.2025.102473","DOIUrl":"10.1016/j.aspen.2025.102473","url":null,"abstract":"<div><div>In recent years, improving host quality for parasitoids has gained attention due to its importance in providing adequate nutrition for immature stages and ensuring successful adult reproduction. Incorporation of plant materials into artificial diets can significantly influence the performance of host insects. This study evaluated the effects of supplementing a basic artificial diet (control) with various pollen grains (glossy shower, hollyhock, honey bee, maize, date palm, rapeseed, saffron, and sunflower) on population growth performance and antioxidant enzymes activities of <em>Helicoverpa armigera</em> Hübner (Lepidoptera: Noctuidae), a commonly used host for parasitoid rearing. All pollen–contained diets supported complete development of <em>H. armigera</em>, though its performance varied among treatments. The shortest developmental time was recorded in larvae fed on the date palm–pollen–contained artificial diet. The female fecundity was highest on date palm–pollen–contained diet (1140.53 offspring), compared to the control diet (331.41 offspring). The intrinsic rate of increase (<em>r</em>) ranged from 0.109 to 0.162 day⁻¹, being highest on honey bee- and date palm–pollen–contained diets and lowest on glossy shower-pollen-contained diet. Meanwhile, the shortest mean generation time (<em>T</em>) was obtained on date palm–pollen–contained diet. The antioxidant enzymes activities, including superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were elevated in larvae fed on maize–, glossy shower–, and saffron–pollen–contained diets, respectively. The cluster analysis confirmed that the date palm–pollen–incorporated artificial diet most effectively enhanced the quality of <em>H. armigera</em> and thus, can be recommended for use in rearing of this species.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 4","pages":"Article 102473"},"PeriodicalIF":1.3,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}