Neotropical Entomology最新文献

Trophic Niche Overlap in Stingless Bees (Melipona Illiger, 1806) Across Seasons in Southern Brazil. 巴西南部无刺蜜蜂（Melipona Illiger, 1806）跨季节的营养生态位重叠。

IF 1.8 3区农林科学

Neotropical Entomology Pub Date : 2026-10-15 DOI: 10.1007/s13744-026-01438-y

Amanda Garçoa Raulik, Luiz Gabriel Ludwig, Adriano Silvério, João M D Miranda

{"title":"Trophic Niche Overlap in Stingless Bees (Melipona Illiger, 1806) Across Seasons in Southern Brazil.","authors":"Amanda Garçoa Raulik, Luiz Gabriel Ludwig, Adriano Silvério, João M D Miranda","doi":"10.1007/s13744-026-01438-y","DOIUrl":"10.1007/s13744-026-01438-y","url":null,"abstract":"Understanding how stingless bee species share floral resources is essential for optimizing meliponiculture and supporting pollinator conservation. This study investigated the trophic niche overlap of four Melipona species (M. quadrifasciata, M. bicolor, M. torrida, and M. mondury) in Southern Brazil across warm and cold seasons. Pollen samples were collected monthly over 10 months and analyzed to assess richness, trophic niche breadth, and overlap between species' trophic niches. Results showed seasonal variation in foraging patterns, with all species (except M. mondury) reducing their niche breadth in colder months. Melipona mondury, a species native to warmer regions of the Atlantic Forest and lacking reproductive diapause, maintained a broad niche year-round, possibly increasing its vulnerability in colder climates. The highest overlap occurred between M. quadrifasciata and M. mondury during the cold season, raising concerns about managing these species in consorted meliponiculture systems. The most frequently visited botanical families included Myrtaceae, Arecaceae, Asteraceae, Moraceae, and Fabaceae highlighting their importance as key floral resources. These findings highlight the importance of considering seasonal dynamics and species-specific traits in meliponiculture, including the need for targeted supplemental feeding and resource planning. Promoting key botanical resources such as Myrtaceae and Arecaceae can support sustainable colony development in high-density environments.","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13672380/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149195635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Worker Body Size Drives Cuticle Thickness and Higher Relative Intensity of the Lipid Reaction in the Leaf-Cutting Ants Atta laevigata and Atta sexdens. 工蚁体型对切叶蚁和切叶蚁角质层厚度和脂质反应相对强度的影响。

IF 1.8 3区农林科学

Neotropical Entomology Pub Date : 2026-09-29 DOI: 10.1007/s13744-026-01436-0

Iasmin Góes Frossard, Kênia Aparecida Dos Santos Mateus, Karina Dias Amaral, Diego Dos Santos Souza, Jéssica Josefa Sanches, Catarina de Lima Januario, Elane Borba Alves, José Eduardo Serrão, Ronald Zanetti

{"title":"Worker Body Size Drives Cuticle Thickness and Higher Relative Intensity of the Lipid Reaction in the Leaf-Cutting Ants Atta laevigata and Atta sexdens.","authors":"Iasmin Góes Frossard, Kênia Aparecida Dos Santos Mateus, Karina Dias Amaral, Diego Dos Santos Souza, Jéssica Josefa Sanches, Catarina de Lima Januario, Elane Borba Alves, José Eduardo Serrão, Ronald Zanetti","doi":"10.1007/s13744-026-01436-0","DOIUrl":"10.1007/s13744-026-01436-0","url":null,"abstract":"The body size of insects influences the surface-area-to-volume ratio and can affect the thickness of the cuticle and relative intensity of the lipid reaction particularly in eusocial species such as leaf-cutting ants of the genus Atta, which exhibit pronounced worker polymorphism. In this study, we evaluated the relationship between body size, relative intensity of the lipid reaction, and cuticle thickness in workers of Atta laevigata (Smith, 1858) (Hymenoptera: Formicidae) and Atta sexdens (Linnaeus, 1758) (Hymenoptera: Formicidae). Small, medium, and large workers, defined according to the width of the cephalic capsule, were compared regarding relative cuticle thickness and relative intensity of the lipid reaction. Both traits varied among worker size classes. Small workers showed higher relative intensity of the lipid reaction and greater relative cuticle thickness, while medium and large workers exhibited lower values for both traits, indicating that different cuticle components respond similarly to body size, regardless of the species. Although the relative intensity of the lipid reaction was not differentiated between species, cuticle thickness was consistently greater in A. sexdens than in A. laevigata in all size classes. Overall, our findings suggest that differences in cuticular characteristics between A. laevigata and A. sexdens are not solely associated with body size and may also be related to the specific functions performed by workers within the colony.","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13624051/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149081668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Role of Diptera and Coleoptera (Arthropoda: Insecta) in Identifying Injuries and Estimating Postmortem Interval: A Case Report. 双翅目和鞘翅目（节肢纲：昆虫纲）在识别损伤和估计死亡时间中的作用：一个病例报告。

IF 1.8 3区农林科学

Neotropical Entomology Pub Date : 2026-09-28 DOI: 10.1007/s13744-026-01444-0

Carina Mara Souza, Vinícius da Costa-Silva, Andre Gardelino Savino, Aline Marrara Prado, Patricia Jacqueline Thyssen

{"title":"The Role of Diptera and Coleoptera (Arthropoda: Insecta) in Identifying Injuries and Estimating Postmortem Interval: A Case Report.","authors":"Carina Mara Souza, Vinícius da Costa-Silva, Andre Gardelino Savino, Aline Marrara Prado, Patricia Jacqueline Thyssen","doi":"10.1007/s13744-026-01444-0","DOIUrl":"10.1007/s13744-026-01444-0","url":null,"abstract":"Diptera and Coleoptera (Arthropoda: Insecta) are of great importance in forensic entomology for providing valuable information that contribute to investigations of the cause of death, cases of neglect and mistreatment or for estimating post-mortem interval (PMI), among others. Considering that the period of insect activity (PIA) reliably and accurately represents the PMI and the increasing use of entomological evidence in forensic cases, we report a case in which Hemilucilia segmentaria (Fabricius) (Diptera, Calliphoridae) was used as entomological evidence to estimate the PMI in a suspected death of a woman whose body was found in a wild environment in southeastern Brazil. Additionally, we report the breeding of Sarcophaga (Lyopygia) ruficornis (Fabricius) (Diptera, Sarcophagidae) in the corpse, highlighting the need of data development of this species for accurately estimation of PMI, and postmortem lesions caused by the previous fly species and by the carrion beetle Oxelytrum discicolle (Brullé) (Coleoptera, Staphylinidae, Silphinae), emphasizing the importance of the knowledge about the biology and behaviour of necrophagous species in order to avoid misinterpretation of evidences.","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13619811/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149075509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Brazilian Insect Survey: A Platform for Pest Management. 巴西昆虫调查：有害生物管理平台。

IF 1.8 3区农林科学

Neotropical Entomology Pub Date : 2026-09-23 DOI: 10.1007/s13744-026-01426-2

Telmo De Cesaro Júnior, Bárbara Stella Wehrmann, Alexandre Tagliari Lazzaretti, Roberto Wiest, Jorge Luis Boeira Bavaresco, Brenda Slongo Taca, Nicolas Welfer Kirinus, Crislaine Sartori Suzana-Milan, Jayme Garcia Arnal Barbedo, Douglas Lau, Rafael Rieder

{"title":"Brazilian Insect Survey: A Platform for Pest Management.","authors":"Telmo De Cesaro Júnior, Bárbara Stella Wehrmann, Alexandre Tagliari Lazzaretti, Roberto Wiest, Jorge Luis Boeira Bavaresco, Brenda Slongo Taca, Nicolas Welfer Kirinus, Crislaine Sartori Suzana-Milan, Jayme Garcia Arnal Barbedo, Douglas Lau, Rafael Rieder","doi":"10.1007/s13744-026-01426-2","DOIUrl":"10.1007/s13744-026-01426-2","url":null,"abstract":"Modern agriculture faces significant challenges in integrated pest management, where collecting, connecting, and processing monitoring data in real time are essential. This study presents the Brazilian Insect Survey (BIS), a web-based platform designed to centralize and streamline phytosanitary data management, enabling the integration of computer vision, field experimentation, and population modeling within a unified digital ecosystem. The platform is organized into functional modules that support experimental data management (TrapSystem and AgroExperiment), automated insect detection and counting from digital images (InsectCV and AphidCV), and simulation of aphid population dynamics (ABISM). These components operate in synergy, supported by distributed processing infrastructure, to ensure scalable data handling and efficient analytical workflows. Multi-year field applications demonstrate that integrating field data acquisition and automated image analysis with mechanistic population modeling enables timely, model-driven interventions that reduce aphid infestation levels and protect crop yield potential under variable environmental conditions, providing empirical evidence for queryPlease check if the captured keywords are correct.the effectiveness of combining AI-based insect detection with population dynamics modeling in operational integrated pest management. The case studies presented here demonstrate that the BIS platform successfully integrates computer vision, field experimentation, and population modeling within a modular digital ecosystem, highlighting its potential to enhance decision-making and advance data-driven integrated pest management.","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13601172/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149031172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Invasive African Dung Beetle Digitonthophagus gazella Dominates Pastures in the Threatened Caatinga Biome, Harming Native Dung Beetles. 入侵的非洲蜣螂Digitonthophagus gazella在濒临灭绝的Caatinga生物群系中统治牧场，伤害当地的蜣螂。

IF 1.8 3区农林科学

Neotropical Entomology Pub Date : 2026-09-22 DOI: 10.1007/s13744-026-01433-3

Clemensou Dos-Reis, Jacques H C Delabie, Federico Escobar

{"title":"The Invasive African Dung Beetle Digitonthophagus gazella Dominates Pastures in the Threatened Caatinga Biome, Harming Native Dung Beetles.","authors":"Clemensou Dos-Reis, Jacques H C Delabie, Federico Escobar","doi":"10.1007/s13744-026-01433-3","DOIUrl":"10.1007/s13744-026-01433-3","url":null,"abstract":"The invasive African dung beetle Digitonthophagus gazella (Fabricius, 1787) has been introduced into South American cattle pastures, raising growing concerns regarding its ecological effects on native dung beetle communities. In this study, we evaluated the effects of D. gazella dominance on the native dung beetle fauna in 21 cattle pastures within the threatened Caatinga biome (Raso da Catarina ecoregion, Brazil). We examined how increasing D. gazella dominance affects native species richness, abundance, diversity, evenness, community composition, and the structure of different functional groups. Our results reveal strong negative effects of D. gazella predominance, including declines in species richness and abundance, significant losses in diversity of common and abundant species, and marked changes in species composition. Large-bodied and paracoprid functional groups were especially affected. Although D. gazella is efficient at removing cattle dung, its dominance in Neotropical pastures may drive biotic homogenization by suppressing native species, eroding functional diversity and creating potential environmental and economic impacts. These findings underscore the importance of long-term monitoring of D. gazella populations and native dung beetle-focused management in ecosystems across tropical America.","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149025546","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}

引用次数: 0

Oral RNAi in Euschistus heros: Evaluation of Gene Silencing Using Cationic Polymer-Stabilized dsRNA. 口服RNAi对大鲵的影响：使用阳离子聚合物稳定的dsRNA对基因沉默的评价。

IF 1.8 3区农林科学

Neotropical Entomology Pub Date : 2026-09-16 DOI: 10.1007/s13744-026-01440-4

Daniel Estiven Quiroga-Murcia, Danielle Ribeiro De Barros, Kristof De Schutter, Moises João Zotti

{"title":"Oral RNAi in Euschistus heros: Evaluation of Gene Silencing Using Cationic Polymer-Stabilized dsRNA.","authors":"Daniel Estiven Quiroga-Murcia, Danielle Ribeiro De Barros, Kristof De Schutter, Moises João Zotti","doi":"10.1007/s13744-026-01440-4","DOIUrl":"10.1007/s13744-026-01440-4","url":null,"abstract":"Euschistus heros, a key pest of soybean in the Neotropical region, represents a growing challenge to sustainable agricultural production. With the urgent need for more targeted and environmentally safe control strategies, RNA interference (RNAi) emerges as an innovative tool. This study investigated the gene-silencing potential of RNAi targeting V-ATPase and act, two genes involved in essential cellular processes. The sensitivity of E. heros to RNAi in adult and immature stages was evaluated by microinjection of dsRNA, as well as the ex-vivo degradation of double-stranded RNA (dsRNA) by nucleases present in saliva and hemolymph. Additionally, an oral delivery strategy based on conjugation of dsRNA to a cationic polymer was studied. Microinjection of dsRNA resulted in high sensitivity, particularly in immature individuals, and induced strong gene-silencing effects associated with increased mortality. Intense nucleolytic activity was detected in saliva, underscoring the need for protective carriers for dsRNA. Oral exposure to conjugated dsRNA effectively protected the molecules from enzymatic degradation and, in addition, exhibited effects on insect survival and gene expression. These findings highlight the strong sensitivity of E. heros to dsRNA delivered by microinjection and underscore the potential of RNAi approaches for the development of tailor-made bio-insecticides, while emphasizing the need to refine delivery strategies to fully realize their practical applications in agricultural pest management.","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13582158/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148983233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Proposed Economic Threshold for Diceraeus melacanthus (Dallas) in Maize Under an Early Intercrop Cultivation System. 早期间作制度下玉米黑斑双翅虫的经济阈值建议

IF 1.8 3区农林科学

Neotropical Entomology Pub Date : 2026-09-16 DOI: 10.1007/s13744-026-01439-x

Weidson Plauter Sutil, Letícia Carolina Chiampi Munhoz, Adeney de Freitas Bueno

{"title":"Proposed Economic Threshold for Diceraeus melacanthus (Dallas) in Maize Under an Early Intercrop Cultivation System.","authors":"Weidson Plauter Sutil, Letícia Carolina Chiampi Munhoz, Adeney de Freitas Bueno","doi":"10.1007/s13744-026-01439-x","DOIUrl":"10.1007/s13744-026-01439-x","url":null,"abstract":"The Antecipe® system, in which maize is sown between soybean rows while soybean plants are still in the reproductive stage, reduces the production cycle of the soybean-maize crop system and, consequently, mitigate climatic risk for second-crop maize. However, the coexistence of both crops can intensify the 'green bridge,' favoring outbreaks of Diceraeus melacanthus. Thus, this study evaluated the host preference of D. melacanthus and the damage caused by different population densities to support management strategies in this system. The preference test was conducted in the greenhouse using cages (1.5 × 0.5 m) containing senescing soybean and maize at the VE stage, infested with ten adult D. melacanthus. Evaluations were carried out over three consecutive days at three times per day. The field experiment followed a completely randomized design with four stink bug densities (0, 1, 2, and 4 insects/m) in 6 × 4 m cages. When maize reached the VE stage, insects were introduced, and damage was assessed. Preference tests indicated a predominance of stink bugs on soybean, especially during the warmest periods of the day, whereas their activity on maize was higher in the early morning. In the field experiment, maize plants exposed to 2 and 4 stink bugs/m showed the highest damage levels, and yield reduction was observed at the density of 4 stink bugs/m; however, with 2 stink bugs/m, yield was statistically equal to both 1 and 4 stink bugs/m (intermediate yield), which could be a turning point from plant tolerance to plant compensation in the damage curve. Therefore, we propose that 2 stink bugs/m should be adopted as a more conservative (yet preliminary) economic threshold (ET) for maize cultivated in this system. Such ET must now be validated in farm conditions, under different climatic conditions (different regions), with different maize varieties.","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13582027/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148983264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Elusive Troglobius brasiliensis (Collembola: Paronellidae), a Critically Endangered Species Rediscovered and Redescribed in Its Habitat and Food Web. 在其栖息地和食物网中重新发现和重新描述的极度濒危物种巴西穴居人（弹子目：Paronellidae）。

IF 1.8 3区农林科学

Neotropical Entomology Pub Date : 2026-09-14 DOI: 10.1007/s13744-026-01427-1

Douglas Zeppelini, Roniere Andrade de Brito, Aila Soares Ferreira, Bruna Carolline Honório Lopes, Nathan Paiva Brito, Misael Augusto de Oliveira Neto, Estevam Cipriano Araujo de Lima

{"title":"The Elusive Troglobius brasiliensis (Collembola: Paronellidae), a Critically Endangered Species Rediscovered and Redescribed in Its Habitat and Food Web.","authors":"Douglas Zeppelini, Roniere Andrade de Brito, Aila Soares Ferreira, Bruna Carolline Honório Lopes, Nathan Paiva Brito, Misael Augusto de Oliveira Neto, Estevam Cipriano Araujo de Lima","doi":"10.1007/s13744-026-01427-1","DOIUrl":"10.1007/s13744-026-01427-1","url":null,"abstract":"Troglobius brasiliensis is a troglomorphic species known only from a single cave in the Brazilian rain forest. This is the first record of the species since its original collection in 1988 and subsequent formal description approximately 30 years ago. We present an integrative redescription of T. brasiliensis based on detailed morphological analysis with scanning electron microscopy. It is a coded redescription with a molecular marker (COI), comprehensive notes on its habitat. The species was found exclusively along the riverbank, restricted to a single sector of the aphotic zone, approximately 40 m from the main cave entrance; both adults and juveniles were observed, indicating a functional and reproductive population. The detailed morphological documentation presented here allows robust comparisons with all known species of Troglobius, and other members of family Paronellidae, contributing to refining species diagnosis and providing a standardized framework for future taxonomic and conservation studies involving subterranean fauna.","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13574854/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148970346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of Stegasta bosqueella (Chambers) (Lepidoptera: Gelechiidae) in Peanut Cultivars. 花生栽培品种中bosqueella （Chambers）的发育（鳞翅目：蠓科）。

IF 1.8 3区农林科学

Neotropical Entomology Pub Date : 2026-09-11 DOI: 10.1007/s13744-026-01435-1

Mirella Marconato Di Bello, Bruno Henrique Sardinha de Souza, Eduardo Neves Costa, Luciano Nogueira, Carlos Alessandro de Freitas, Bruna Ferrari Schedenffeldt, Marcelo Mueller de Freitas, Elias Silva de Medeiros, Arlindo Leal Boiça Júnior

{"title":"Development of Stegasta bosqueella (Chambers) (Lepidoptera: Gelechiidae) in Peanut Cultivars.","authors":"Mirella Marconato Di Bello, Bruno Henrique Sardinha de Souza, Eduardo Neves Costa, Luciano Nogueira, Carlos Alessandro de Freitas, Bruna Ferrari Schedenffeldt, Marcelo Mueller de Freitas, Elias Silva de Medeiros, Arlindo Leal Boiça Júnior","doi":"10.1007/s13744-026-01435-1","DOIUrl":"10.1007/s13744-026-01435-1","url":null,"abstract":"Stegasta bosqueella (Chambers) (Lepidoptera: Gelechiidae) is a major peanut pest (Arachis hypogeae L.) in Brazil. The evaluation of peanut cultivars is fundamental for characterizing the levels of insect resistance, supporting their use in integrated pest management (IPM). This study evaluated possible sources of antibiosis-type resistance to S. bosqueella in selected peanut cultivars. Five cultivars were evaluated for constitutive resistance levels: IAC Caiapó, IAC Runner 886, IAC OL3, IAC 503, and Granoleico. The development of S. bosqueella was evaluated under laboratory conditions, where neonate larvae were kept in Petri dishes and fed leaves of the peanut cultivars until pupation. The evaluated biological parameters of S. bosqueella were larval and pupal weights; larval, prepupal, and pupal periods; adult longevity; sex ratio; and larval survival. Larvae fed leaves of the IAC 503 cultivar presented prolonged larval periods, lower weights and survival. In addition, larvae fed on this cultivar gave rise to pupae with lower weights, adults with shorter longevity, and those with the lowest fitness index. Thus, IAC 503 was classified as resistant to S. bosqueella through antibiosis, whereas the other cultivars presented different levels of susceptibility. The results obtained herein can support the use of resistant cultivars in IPM for peanut crops since IAC 503 is a commercial cultivar that is readily available for planting by farmers. Additionally, IAC 503 can be useful in peanut breeding programs targeting S. bosqueella resistance, serving as a resistance gene donor.","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13569594/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148945190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monitoring and Behavioral Control of Lepidopteran Pests in Soybean: Evaluation of Food-Based Attractants, Trap Performance, and Selectivity on Non-Target Organisms. 大豆鳞翅目害虫的监测和行为控制：评价食品引诱剂、诱捕器性能和对非目标生物的选择性。

IF 1.8 3区农林科学

Neotropical Entomology Pub Date : 2026-09-10 DOI: 10.1007/s13744-026-01428-0

Vinicius Cesarin, Sabrina Cesarin de Oliveira, Allana Grecco Guedes, João Rafael Silva Soares, Odair Aparecido Fernandes

{"title":"Monitoring and Behavioral Control of Lepidopteran Pests in Soybean: Evaluation of Food-Based Attractants, Trap Performance, and Selectivity on Non-Target Organisms.","authors":"Vinicius Cesarin, Sabrina Cesarin de Oliveira, Allana Grecco Guedes, João Rafael Silva Soares, Odair Aparecido Fernandes","doi":"10.1007/s13744-026-01428-0","DOIUrl":"10.1007/s13744-026-01428-0","url":null,"abstract":"Chemically mediated behavioral strategies, including semiochemicals and food-based attractants, have gained prominence in Integrated Pest Management (IPM) programs because of their potential for selective and environmentally friendly pest control. The objective of this study is to evaluate the use of food-based attractants and two trap models (delta-ajar and funnel-ball) for monitoring adult lepidopteran pests in soybean fields. Additionally, the field performance and selectivity of an attract-and-kill (attractant + insecticide) strategy were assessed. Field trials were conducted in commercial soybean areas in Jaboticabal, São Paulo state, Brazil. Results indicated that funnel-ball traps captured a significantly higher number of target moths (36.8 ± 4.3 moths/trap/month) than delta-ajar traps (17.4 ± 2.9 moths/trap/month). However, both models presented similar species richness. Temporal patterns of moth abundance varied along the crop cycle and Helicoverpa armigera and Chrysodeixis includens populations peaked during the reproductive stages of soybean. In contrast, Spodoptera frugiperda and Elasmopalpus lignosellus were more abundant during the early vegetative stages, particularly within the first 20 days after plant emergence. The attract-and-kill application was associated with significantly higher moth mortality than the untreated control, especially for C. includens and E. lignosellus, with mortality peaking at 40 days after trap installation. Importantly, mortality among non-target organisms was relatively low (< 2% of total mortality), and was mainly restricted to a limited number of families such as Dolichopodidae, and Tachinidae (Diptera). These findings underscore the relevance of adaptive, phenology-aware pest management strategies that incorporate semiochemical tools with minimal ecological disruptions.","PeriodicalId":19071,"journal":{"name":"Neotropical Entomology","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13562112/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148930756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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