Insects最新文献

{"title":"Effect of Seasonal Grazing on Ground-Dwelling Insect Communities in the Desert Steppe of Ningxia.","authors":"Chun Shi, Changyu Xiong, Ziyu Cao, Haixiang Zhang, Ying Wang, Wei Sun, Yifan Cui, Rong Zhang, Shuhua Wei","doi":"10.3390/insects16090939","DOIUrl":"10.3390/insects16090939","url":null,"abstract":"<p><p>To investigate the effects of seasonal grazing on ground-dwelling insect communities in desert steppe, this study conducted a controlled experiment in the desert steppe of Yanchi County, Ningxia, during 2022-2023. Five grazing regimes were established: spring-summer grazing (Sp+Su), spring-autumn grazing (Sp+Au), summer-autumn grazing (Su+Au), year-round continuous grazing (Annual), and no grazing (Control, CK). Insects were collected using pitfall traps and categorized into herbivorous and predatory functional groups. Combined with monitoring of vegetation community structure, we analyzed the regulatory mechanisms of grazing on insect diversity. The results showed that different grazing regimes had significantly divergent effects on herbivorous and predatory insects. Herbivorous insect diversity was significantly highest under the Annual grazing regime, while Sp+Au grazing effectively controlled herbivorous insect occurrence, resulting in the lowest abundance. Predatory insects exhibited the highest abundance but the lowest diversity under Su+Au grazing, whereas the CK regime increased their species richness. Beta diversity analysis indicated that total replacement diversity (Repl) was dominant, suggesting that grazing primarily influenced community structure by altering species composition rather than changing species number. Non-metric multidimensional scaling (NMDS) results revealed clustering characteristics of insect community structures under different grazing regimes. Redundancy analysis (RDA) and generalized additive models (GAMs) identified vegetation height and predatory insect abundance as key factors driving changes in herbivorous insects. Vegetation density and biomass exhibited nonlinear regulatory effects on herbivorous insects. Based on these findings, we recommend adopting either a hybrid strategy of \"year-round continuous grazing combined with seasonal rest\" or specifically the \"spring + autumn\" (Sp+Au) grazing regime. These approaches aim to synergistically achieve the goals of pest control and biodiversity conservation in desert steppe ecosystems.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471267/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145174892","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":"Modeling the Wildlife-Livestock Interface of Cattle Fever Ticks in the Southern United States.","authors":"Vera W Pfeiffer, José-María García-Carrasco, David W Crowder, Massaro W Ueti, Karen C Poh, Javier Gutierrez Illán","doi":"10.3390/insects16090940","DOIUrl":"10.3390/insects16090940","url":null,"abstract":"<p><p>Cattle fever ticks, <i>Rhipicephalus microplus</i> and <i>Rhipicephalus annulatus</i>, transmit <i>Babesia</i> pathogens, the causative agents of cattle fever worldwide. Although eradicated from the United States, increasing incursions of cattle fever ticks in Texas have put considerable strain on the Cattle Fever Tick Eradication Program (CFTEP). The movement of ticks between wildlife and cattle along the Texas-Mexico border complicates control efforts. Here, we used habitat suitability models, the literature, and quantitative survey data to project the distributions of native and introduced ungulates in Texas. Specifically, we used habitat suitability models and downscaling to estimate potential overlap between cattle and free-ranging white-tailed deer (<i>Odocoileus virginianus</i>) and nilgai (<i>Boselaphus tragocamelus</i>) that may carry cattle fever ticks and generate maps of estimated tick exposure risk. Our findings suggest that the introduction and spread of exotic ungulates, such as the nilgai antelope, may facilitate the expansion of cattle fever ticks within and beyond the historical quarantine zone established in 1943. The increasing range of nilgai populations could enhance landscape connectivity for cattle fever ticks in sensitive areas along the Texas-Mexico border. By combining these models with cattle inventory data, we provide tools to help the CFTEP better allocate resources, monitor tick populations, prevent incursions, and implement early interventions.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470742/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145175134","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":"Comparative Transcriptome Analysis Reveals Epithelial Growth Factor Receptor (EGFR) Pathway and Secreted C-Type Lectins as Essential Drivers of Leg Regeneration in <i>Periplaneta americana</i>.","authors":"Xiaoxuan Liu, Nan Sun, Xiaojuan Wu, Jiajia Wu, Shuqi Xian, Dayong Wang, Yechun Pei","doi":"10.3390/insects16090934","DOIUrl":"10.3390/insects16090934","url":null,"abstract":"<p><p>The American cockroach (<i>Periplaneta americana</i>) serves as an exemplary model for regeneration research due to its exceptional regenerative capabilities, particularly in appendage regeneration. In this study, regenerated coxa tissue underwent histological analysis through H & E straining. Microscopic examination revealed the progression of regeneration. To elucidate the underlying mechanisms, a comparative transcriptomic analysis was conducted between regenerating legs and non-amputated control legs. This analysis identified 2343 differentially expressed genes (DEGs) between 0 days post-amputation (0 dpa) and 7 dpa, 2963 DEGs between 14 dpa and 0 dpa, and 3135 DEGs between 14 dpa and 7 dpa. Significantly, several DEGs are associated with growth- or regeneration-related processes, including extracellular matrix (different collagen, Pro-resilin isoforms, <i>integrin beta</i> (<i>itgb</i>) and <i>matrix metalloproteinase</i> (<i>mmp</i>)), immune-related genes (<i>Toll-like receptor 13</i> (<i>tlr13</i>), <i>defensin</i> (<i>def</i>), <i>drosomycin-like defensin</i> (<i>dld</i>), <i>Polyphenoloxidases2</i> (<i>ppo2</i>), <i>cytochrome P450</i> (<i>p450</i>), <i>peptidoglycan recognition protein</i> (<i>pgrp</i>) <i>and secreted C-type lectin</i> (<i>sClec</i>)), <i>insulin-like growth factor</i> (<i>IGF</i>) and <i>Epidermal Growth Factor Receptor</i> (<i>EGFR</i>). Functional validation through RNA interference (RNAi) further suggested that <i>EGFR</i> and a specific C-type lectin (<i>Regenectin</i>) regulate leg regeneration in <i>Periplaneta americana</i>. These findings enhance our understanding of the molecular mechanisms governing regeneration in this species.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470663/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145175093","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":"<i>Dermacentor reticulatus</i> (Fabricius, 1794) in Southwestern Poland: Changes in Range and Local Scale Updates.","authors":"Dorota Kiewra, Hanna Ojrzyńska, Aleksandra Czułowska, Dagmara Dyczko, Piotr Jawień, Kinga Plewa-Tutaj","doi":"10.3390/insects16090935","DOIUrl":"10.3390/insects16090935","url":null,"abstract":"<p><p>The ornate dog tick <i>Dermacentor reticulatus</i> is a key vector of several pathogens and has been expanding its range across Europe, raising concerns about the associated veterinary and public health risks. This study aimed to assess the current distribution and local-scale expansion of <i>D. reticulatus</i> in southwestern Poland, particularly in and around the city of Wrocław. In 2024, host-seeking ticks were collected using the flagging method at 80 sites, including 30 previously monitored locations and 50 newly designated ones, selected based on land cover analysis and field verification. Spatial statistics and kriging method were applied to evaluate changes in the tick's range compared to data from 2014-2019. The presence of <i>D. reticulatus</i> was confirmed at 68 sites, including 13 located beyond the previously estimated range. A shift in the mean center of tick occurrence toward the southeast was observed, along with an increase in the compact area of occurrence. The results indicate a continued expansion of <i>D. reticulatus</i> in the region, with urbanization and landscape structure likely influencing its spread. These findings underscore the importance of local-scale surveillance and spatial modeling in assessing the risk of tick-borne diseases.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471085/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145175124","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":"Preliminary Assessment of Bespoke ('X-tec') Silica Particles for IRS Applications.","authors":"Stephania Herodotou, Natalie Lissenden, Kevin Skinley, Derric Nimmo, Janneke Snetselaar, Amy Guy, Peter Myers, Svetlana Ryazanskaya","doi":"10.3390/insects16090937","DOIUrl":"10.3390/insects16090937","url":null,"abstract":"<p><p>The efficacy of indoor residual spray (IRS) products is affected by various factors, such as the substrate on which they are sprayed and the surface concentration and bioavailability of the insecticide. This study investigated the potential of bespoke silica particles (hereafter referred to as 'X-tec silica') as a unique carrier for insecticides to reduce the insecticide content in an IRS formulation by improving pickup by mosquitoes and optimising the physical state of the insecticide while maintaining its residual biological activity on a surface. Molecular computer modelling was used to define the critical crystallisation size of clothianidin, and silica particles were manufactured with pore diameters smaller than this length to maintain the insecticide in an amorphous state. Silica carriers were then formulated to incorporate clothianidin inside their pores, and a full material characterisation was conducted to assess the clothianidin coating position on/in the silica particles, their concentration, and their physical form. The clothianidin-formulated silica (10%) was sprayed at three different application rates (30, 60, and 90 mg active ingredient (a.i.)/m²) onto two surfaces: glazed and unglazed tiles. The tiles were tested for bioefficacy against the insecticide-susceptible <i>Anopheles gambiae</i> s.s. Kisumu mosquito strain at 1 week and 8 months post-spray application. At 1 week post-spray application, at 60 and 90 mg a.i./m² application rates, 100% mortality was observed on both surfaces within 48 h. For the lowest concentration (30 mg a.i./m²), 100% mortality was reached within 72 h on glazed tiles; however, for unglazed tiles, due to the surface irregularity and porosity, it remained below 60%. At 8 months post-spray application, on glazed tiles, 100% mortality was reached within 24 h at 60 and 90 mg a.i./m² application rates and within 48 h at 30 mg a.i./m². On unglazed tiles, 96 h mortality was not measured; however, 100% mortality was reached within 72 h (90 mg a.i./m²) and 120 h (60 mg a.i./m²) at higher concentrations. At the lowest concentration (30 mg a.i./m²) at 120 h, mortality only reached 25%. The lowest application rate tested (30 mg a.i./m²) is ten times lower than that of current products on the market and demonstrates the potential of this approach. Preliminary findings from this study suggest that X-tec silica particles may enhance the effectiveness of IRS using clothianidin. However, further extensive research is needed to confirm this.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470417/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145174938","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":"Transcriptome and Functional Analyses Revealed the Carboxylesterase Genes Involved in Pyrethroid Resistance in <i>Anopheles sinensis</i> (Diptera: Culicidae).","authors":"Yiyun Wei, Xinyao Gu, Fengling Si, Xiaojie Chen, Liang Qiao, Hongxing Yan, Bin Chen","doi":"10.3390/insects16090938","DOIUrl":"10.3390/insects16090938","url":null,"abstract":"<p><p>Carboxylesterases (CCEs) have been demonstrated to be involved in pyrethroid resistance in insect species. This study aims to investigate CCE-mediated resistance mechanisms in <i>Anopheles sinensis</i>, a major malaria vector. Through comparative transcriptomics of a deltamethrin-resistant strain (CQ-LR) versus susceptible strain (WX-LS) of <i>An. sinensis</i>, we identified differentially expressed CCE genes across five developmental stages, five tissues, and three time points post-blood-meal. Four candidate genes (<i>AsAe9</i>, <i>AsAe10</i>, <i>AsAce2</i>, <i>AsUn5</i>) showed significantly upregulated expression. Subsequent qRT-PCR validation across four field-derived resistant strains (WX-LR, AH-LR, YH-LR, CQ-LR) and the susceptible strain confirmed significant upregulation of <i>AsAe9</i>, <i>AsAe10</i>, <i>AsAce1</i>, <i>AsAce2</i>, and <i>AsBe4</i> in more than two resistant populations. RNAi-based functional validation showed that silencing <i>AsAe10</i> or <i>AsBe4</i> in the WX-LR strain significantly decreased knockdown time and raised 24 h mortality upon diagnostic deltamethrin exposure, with <i>AsAe10</i> silencing having the strongest effect. This study identifies CCE genes involved in deltamethrin resistance in <i>An. sinensis</i>, providing valuable insights into the resistance mechanisms of pyrethroid and a theoretical basis for mosquito resistance management.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470664/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145175072","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":"Systemic Assessment of Chronic Toxicity of Thiamethoxam on Honeybees (<i>Apis mellifera</i>).","authors":"Meng-Jia Li, Qi-Bao He, Yi-Fan Wu, Quan Gao, A-Long Wang, Jin-Jing Xiao, Min Liao, Yong Huang, Yao-Hui Wang, Hai-Qun Cao","doi":"10.3390/insects16090936","DOIUrl":"10.3390/insects16090936","url":null,"abstract":"<p><p>Honeybees (<i>Apis mellifera ligustica</i> Spin.) are the most significant pollinating insects, playing a vital role in maintaining biodiversity. In healthy colonies, the reproductive success of the queen and the genetic contribution of drones are essential for long-term survival, directly affecting brood production, genetic diversity, and environmental adaptability. While the physiological and behavioral impacts of chemical pesticides on worker bees are relatively well documented, the risks to reproductive bees (queens and drones) remain poorly understood. In this study, we comprehensively assessed the effects of the widely used neonicotinoid thiamethoxam on the key developmental and physiological parameters in reproductive bees, including survival, pupation rate, eclosion rate, hormone titers, and detoxification enzyme activities. Our finding reveals that thiamethoxam exerts sublethal effects on larvae, significantly impairing the fitness of reproductive bees. Specifically, exposure altered juvenile hormone III, ecdysone titer, and acetylcholinesterase activity in reproductive larvae, with these effects showing a negative correlation with pesticide concentration. Notably, CYP450 activity exhibits a biphasic dose-response, with an initial elevation followed by a decline after reaching peak levels. These results demonstrate that thiamethoxam adversely affects the growth and development of reproductive bees, potentially compromising colony stability. By elucidating these sublethal effects, our study provides critical insights for mitigating pesticide-related threats to honeybee health. Our findings may help to scientifically and rationally avoid the potential risks of chemical pesticides to honeybees.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471245/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145174980","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":"Changes in Gut Microbiota, Midgut Structure, and Gene Expression of <i>Spodoptera frugiperda</i> Infected by <i>Serratia marcescens</i>.","authors":"Yibo Guo, Yue Zou, Youyang Chen, Jiaxin Liu, Yingying Ye, Xinglong Huang, Zhengwei Wu","doi":"10.3390/insects16090933","DOIUrl":"10.3390/insects16090933","url":null,"abstract":"<p><p><i>Serratia marcescens</i> is a microorganism that exhibits insecticidal activity against various insects, including the migratory fall armyworm (FAW), <i>Spodoptera frugiperda</i>. This article investigates the insecticidal mechanism of <i>S. marcescens</i> through gastric toxicity. The study involved midgut tissue sectioning, hemolymph observation, and microbiome and transcriptome analysis of both infected and uninfected FAW. The findings revealed that <i>S. marcescens</i> effectively disrupted the structure of the midgut, causing midgut shrinkage and rupture, as well as inducing pseudopodia formation in granulocytes. Moreover, it increased the diversity of gut microbiota. Transcriptome analysis indicated an upregulation of metabolic-related genes and tissue repair genes, while there was a downregulation of fat synthesis genes, some immune genes, hormone synthesis genes, etc. The disruption of the midgut structure negatively affects the metabolism and immune function of the FAW, potentially resulting in midgut rupture, systemic sepsis, and ultimately mortality. In conclusion, our study has elucidated the insecticidal mechanism of <i>S. marcescens</i> against the FAW and demonstrated its potential as a biological control agent for managing this pest.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470597/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145175070","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":"Distribution of Larval Habitats and Efficiency of Various Trap Settings to Monitor Sympatric <i>Aedes albopictus</i> and <i>Aedes aegypti</i> in La Reunion.","authors":"Caroline Vitry, Ronan Brouazin, Anthony Herbin, Mathieu Whiteside, Cécile Brengues, Thierry Baldet, Renaud Lancelot, Jérémy Bouyer","doi":"10.3390/insects16090932","DOIUrl":"10.3390/insects16090932","url":null,"abstract":"<p><p>To prepare for a boosted sterile insect technique (SIT) field trial in Saint-Joseph, Reunion island, we compared the attractiveness of two adult mosquito traps for <i>Aedes albopictus</i> and <i>Aedes aegypti</i>. In addition, we explored the co-occurrence of these species in their usual larval habitats. Two traps were compared with two conditions each using a Latin square design: BG Sentinel trap baited with carbon dioxide (CO₂) with/without addition of BG Lure and ovi-sticky trap with/without hay. The ovi-sticky traps proved ineffective. For both <i>Aedes</i> species, CO₂-baited traps were equally effective at catching females when baited with the lure or not. In contrast, they were more attractive to males than for females with the lure. <i>Aedes aegypti</i> larvae were found in four of six vacoas (<i>Pandanus utilis</i>), and one of four anthropogenic breeding sites. In vacoas, the densities of <i>Aedes albopictus</i> and <i>Aedes aegypti</i> larvae were negatively correlated, whereas the correlation was positive between chironomids and <i>Aedes aegypti</i>. The abundance of adults and larvae varied according to weather conditions. Finally, CO₂-baited traps were used without lure for the entomological monitoring to assess the effectiveness of the area-wide boosted SIT intervention to reduce costs and logistics.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470308/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145175099","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":"Occurrence, Biological Characteristics, and Annual Dynamics of <i>Atherigona orientalis</i> (Schiner 1968) (Diptera: Muscidae) in China.","authors":"Zihao Zhou, Yujie Luo, Jiawei Qin, Xintong Wang, Shuaijun Ning, Jing He, Qiong Zhou","doi":"10.3390/insects16090931","DOIUrl":"10.3390/insects16090931","url":null,"abstract":"<p><p><i>Atherigona orientalis</i> (Diptera: Muscidae) may be a neglected agricultural pest worldwide since the public generally regards it as a saprophytic and sanitary insect. In fact, <i>A. orientalis</i> can infest over 50 varieties of fruits and vegetables in 26 families listed as quarantine pests in several countries. Regrettably, there are few reports of this pest despite its prevalence in the pantropical regions of many countries. In this study, we reported the distributions, morphological, and biological characteristics, including the host ranges, developmental durations, color selections, and population dynamics changes of <i>A. orientalis</i> in Hunan Province. Currently, <i>A. orientalis</i> has been found in each prefectural and municipal city of Hunan Province, China. Additionally, 15 out of 20 host plants we collected were infested. The developmental durations of the egg, larva, and pupa of <i>A. orientalis</i> ranged from 2 to 3, 5 to 7, and 6 to 8 days, respectively. The results of color selections showed that <i>A. orientalis</i> adults tend to prefer green and yellow colors. Moreover, the population dynamics of <i>A. orientalis</i> in Changsha City showed that July and August were the population peaks throughout the year. Our research supplements valuable data of <i>A. orientalis</i> for pest management and subsequent studies.</p>","PeriodicalId":13642,"journal":{"name":"Insects","volume":"16 9","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12470737/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145174682","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}