Bulletin of Entomological Research最新文献_第5页

Hemocyte profiles of Hierodula tenuidentata and Empusa fasciata under starvation, dietary variation, and thermal stress. 在饥饿、饮食变化和热应激条件下，tenuidentata和Empusa fasciata的血细胞谱。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2026-04-24 DOI: 10.1017/S0007485326100984

Maryam Ajamhassani, Alireza Salehi, Zohreh Mirzaee

{"title":"Hemocyte profiles of Hierodula tenuidentata and Empusa fasciata under starvation, dietary variation, and thermal stress.","authors":"Maryam Ajamhassani, Alireza Salehi, Zohreh Mirzaee","doi":"10.1017/S0007485326100984","DOIUrl":"https://doi.org/10.1017/S0007485326100984","url":null,"abstract":"Insect immunology represents a critical component of circulatory physiology research. Considering the ecological significance of mantids and their predatory roles, this study investigated the types of hemocytes and their modulation by starvation, prey quality, and temperature in Hierodula tenuidentata and Empusa fasciata. This study also documents the presence of these two species in Semnan province, Iran for the first time, expanding our knowledge of their distribution. Field-collected oothecae were incubated under controlled conditions (temperature 25 ± 1°C, relative humidity 50%, and a photoperiod of 14:10 light:dark hours) until nymphal emergence. Following hemolymph extraction and staining with Giemsa solution, four hemocyte types - prohemocytes, plasmatocytes, granulocytes, and oenocytoids - were identified in both species; spherulocytes appeared exclusively in adult H. tenuidentata under a light microscope. Differential hemocyte counts revealed granulocytes as predominant in H. tenuidentata, whereas both granulocytes and plasmatocytes were abundant in E. fasciata across developmental stages. Prohemocytes were more abundant in the early-instar nymphs than in the late-instar nymphs of both mantids. Hemocyte density declined progressively with prolonged starvation, reaching a minimum after 4 days. The highest hemocyte concentrations were observed in mantids fed grasshoppers after 1 week, whereas markedly lower counts occurred with low-quality prey, such as Musca domestica L. (Diptera: Muscidae) and Lycaena sp. (Lepidoptera: Lycaenidae). Heat stress significantly elevated hemocyte density, whereas cold exposure induced substantial reductions in hemocyte density. Hemocyte fluctuations were more pronounced after 48 hours than after 24 hours. These findings suggest that short-term dietary deprivation, prey type, and thermal stress may rapidly alter immune profiles in H. tenuidentata and E. fasciata.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-12"},"PeriodicalIF":1.6,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147763338","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

Transgenerational suppression of Aphis gossypii Glover (Hemiptera: Aphididae) population resurgence by mepiquat chloride in combination with sublethal insecticides. 氯甲氰菊酯与亚致死杀虫剂联用对棉蚜种群复苏的跨代抑制。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2026-04-23 DOI: 10.1017/S0007485326101011

Kangwei Wang, Yuepeng Qiu, Hongyan Hu, Xianpeng Song, Yongpan Shan, Dan Wang, Changcai Wu, Yajie Ma, Yan Ma, Xiangliang Ren

{"title":"Transgenerational suppression of Aphis gossypii Glover (Hemiptera: Aphididae) population resurgence by mepiquat chloride in combination with sublethal insecticides.","authors":"Kangwei Wang, Yuepeng Qiu, Hongyan Hu, Xianpeng Song, Yongpan Shan, Dan Wang, Changcai Wu, Yajie Ma, Yan Ma, Xiangliang Ren","doi":"10.1017/S0007485326101011","DOIUrl":"https://doi.org/10.1017/S0007485326101011","url":null,"abstract":"Aphis gossypii Glover (Hemiptera: Aphididae) is a globally significant agricultural pest that has developed varying degrees of resistance to numerous classes of insecticides. Studies on the plant growth regulator mepiquat chloride (DPC) indicate that direct exposure inhibits development and reduces the reproductive capacity of A. gossypii. However, the effects of combining DPC with insecticides on the development and population dynamics of A. gossypii remain unclear. Therefore, this study investigated the effects of DPC in conjunction with sublethal doses of imidacloprid (IMI-LC30) and sulfoxaflor (SUL-LC30) on the toxicity and sublethal effects of A. gossypii, using life table parameters and qPCR analysis. The results showed that the combination of DPC with IMI or SUL did not enhance the toxicity of either IMI or SUL. Compared to treatments with IMI-LC30 or SUL-LC30 alone, the combination treatments showed no significant differences in longevity, fecundity, and population parameters of the F0 generation. However, the fecundity of the F1 generation was significantly reduced, and population parameters also exhibited a decreasing trend. Moreover, exposure of A. gossypii to IMI-LC30 or SUL-LC30 resulted in the upregulation of reproduction-related genes Vg and VgR in the F1 generation. This effect was suppressed when either IMI-LC30 or SUL-LC30 was co-applied with DPC. These findings demonstrate that combining DPC, in combination with IMI or SUL, can suppress the population resurgence of A. gossypii induced by sublethal exposure to these insecticides on their own. This research provides insights for the effective use of DPC and insecticides.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-10"},"PeriodicalIF":1.6,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147763282","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

DNA barcodes reveal population structure in a widely-distributed agricultural pest, the Hawaiian beet webworm Spoladea recurvalis (Lepidoptera: Crambidae). DNA条形码揭示了一种广泛分布的农业害虫——夏威夷甜菜网虫的种群结构。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2026-04-20 DOI: 10.1017/S0007485326100996

Edward Pfeiler

引用次数: 0

Assessing the resistance of soybean genotypes to Callosobruchus chinensis L. (Coleoptera: Chrysomelidae) in Ethiopia. 埃塞俄比亚大豆基因型对中国胼胝体（Callosobruchus chinensis L.）的抗性评价。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2026-04-17 DOI: 10.1017/S0007485326100972

Minyahil Kebede Earecho, Seid Ahmed Seid

引用次数: 0

Host size and sex effects on parasitism by the Irish strain of Microctonus aethiopoides in the laboratory and the field. 寄主大小和性别对埃塞俄比亚小仓鼠爱尔兰株实验室和田间寄生的影响。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2026-04-17 DOI: 10.1017/S0007485326100923

Philippa Gerard, Tina Eden, Derrick Wilson

{"title":"Host size and sex effects on parasitism by the Irish strain of Microctonus aethiopoides in the laboratory and the field.","authors":"Philippa Gerard, Tina Eden, Derrick Wilson","doi":"10.1017/S0007485326100923","DOIUrl":"https://doi.org/10.1017/S0007485326100923","url":null,"abstract":"The impact of host size and sex on parasitism by the Irish strain of the hymenopteran parasitoid Microctonus aethiopoides Loan was investigated in the laboratory and in the field. Field data showed that while there was a large overlap, female adults of the target host Sitona obsoletus Gmelin averaged heavier weights than males (7.0 mg vs. 5.4 mg, P < 0.001). Male and female adult weights varied monthly: this was likely due to the emergence of a new weevil generation and environmental factors such as rainfall. While host sex and weight had no obvious impact on overall parasitism rates in S. obsoletus in the field, a no-choice cage study revealed that M. aethiopoides had lower parasitism rates (74% vs. 91%, P < 0.001) in larger weevils compared to small weevils. Additionally, parasitoid larval development was faster in female hosts compared to males, irrespective of size. While undetectable in field observations, differential development rates would enhance Irish M. aethiopoides population resilience. By breaking the previous generation synchrony, the population would be less vulnerable to being decimated by a single adverse event.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-6"},"PeriodicalIF":1.6,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147697787","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

Two-sex life tables of bifenthrin-selected and unselected strains of Chrysoperla carnea: stability of resistance. 联苯菊酯选择株与未选择株的雌雄生命表：抗性稳定性。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2026-04-16 DOI: 10.1017/S0007485326100960

Iqra Khalid, Obaiba Khalid, Sarfraz Ali Shad

{"title":"Two-sex life tables of bifenthrin-selected and unselected strains of Chrysoperla carnea: stability of resistance.","authors":"Iqra Khalid, Obaiba Khalid, Sarfraz Ali Shad","doi":"10.1017/S0007485326100960","DOIUrl":"https://doi.org/10.1017/S0007485326100960","url":null,"abstract":"Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) is an important agricultural biocontrol agent that preys on various soft-bodied insect pests. This study was carried out to evaluate the fitness parameters of bifenthrin-selected (Bifen-Sel) and unselected (Unsel) strains of C. carnea and their reciprocal crosses (C1 and C2) by using an age-stage and two-sex life table approach. After continuous selection with bifenthrin (44 generations), the Bifen-Sel strain of C. carnea developed a 9.55-fold resistance level when compared to that of the Unsel. Biological parameters, such as the pupal period, pre-adult duration, male and female longevity, adult pre-oviposition period, and oviposition period of the Bifen-Sel strain, all were significantly different from that of the Unsel strain and their crosses C1 and C2. The larval period, total pre-oviposition period, female ratio, reproductive female ratio, and fecundity of the Bifen-Sel strain were significantly different from those of the Unsel strain. Demographic parameters, including intrinsic rate (rm), finite rate (λ), net reproductive rate (R0), mean generation rate (T), and gross reproductive rate of the Bifen-Sel strain, were similar to those of the Unsel strain but significantly higher than those of the C1 and C2 crosses of C. carnea. Bifenthrin resistance was stable in the Bifen-Sel strain of C. carnea. These findings provide valuable insights into bifenthrin resistance dynamics in C. carnea as it resulted in no fitness cost and support its selective use under controlled conditions, while highlighting the need for future research on predation potential of this resistant strain under field conditions with bifenthrin applications.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-10"},"PeriodicalIF":1.6,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147688273","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

First report of the invasive mealybug Ferrisia dasylirii (Hemiptera: Coccomorpha: Pseudococcidae) from China based on integrated taxonomy. 基于综合分类的中国入侵粉蚧（半翅目：球虫科：假球虫科）首次报道。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2026-04-14 DOI: 10.1017/S000748532610100X

Huijiao Lin, Shao-Bin Huang, Zhi-Xuan Liu, Hai-Jie Huang, Hua-Yan Chen

{"title":"First report of the invasive mealybug Ferrisia dasylirii (Hemiptera: Coccomorpha: Pseudococcidae) from China based on integrated taxonomy.","authors":"Huijiao Lin, Shao-Bin Huang, Zhi-Xuan Liu, Hai-Jie Huang, Hua-Yan Chen","doi":"10.1017/S000748532610100X","DOIUrl":"https://doi.org/10.1017/S000748532610100X","url":null,"abstract":"Ferrisia dasylirii (Cockerell) (Hemiptera: Coccomorpha: Pseudococcidae) is a polyphagous mealybug species and native to North America, but has spread to Asia and Africa. In this study, we report F. dasylirii for the first time from China using an integrated taxonomy approach combining morphological characters and molecular analyses of the mitochondrial cytochrome oxidase subunit 1 gene. It was found on 12 tropical fruit species in Hainan Province: Annonaceae: Annona squamosa L. and A. squamosa 'Purple'; Myrtaceae: Eugenia brasiliensis Lam. and Psidium guajava L.; Malvaceae: Theobroma cacao Linn.; Lecythidaceae: Lecythis pisonis Cambess.; Sapotaceae: Pouteria campechiana (Kunth) Baehni and P. sapota (Jacq.) H.E.Moore & Stearn; Rubiaceae: Coffea liberica W. Bull ex Hiern; Cunoniaceae: Davidsonia pruriens F. Muell; Arecaceae: Areca catechu Linn.; Musaceae: Musa nana Lour.; Malpighiaceae: Malpighia emarginata Sesse & Noc.ex DC.; and Phyllanthaceae: Phyllanthus emblica Linn. This record increases the known geographic range of F. dasylirii and underscores the importance of combined morphological and molecular approaches for accurate mealybug identification.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-9"},"PeriodicalIF":1.6,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147670690","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

Optimised triangular pheromone traps for multi-season monitoring of Tuta absoluta in protected tomato systems. 优化三角形信息素诱捕器在番茄保护地多季监测中的应用。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2026-04-14 DOI: 10.1017/S0007485326100935

Heng Chen, Ying Sun, Jiahong Zuo, Xiaoyuan Chen, Zhenxi Wu, Guohua Chen, Weijun Han, Xiujuan Wan, Jinlong Zhang, Xiaoming Zhang

{"title":"Optimised triangular pheromone traps for multi-season monitoring of Tuta absoluta in protected tomato systems.","authors":"Heng Chen, Ying Sun, Jiahong Zuo, Xiaoyuan Chen, Zhenxi Wu, Guohua Chen, Weijun Han, Xiujuan Wan, Jinlong Zhang, Xiaoming Zhang","doi":"10.1017/S0007485326100935","DOIUrl":"https://doi.org/10.1017/S0007485326100935","url":null,"abstract":"The invasive tomato leafminer Tuta absoluta has become a major constraint to tomato production worldwide, and intensive insecticide use against this pest increases production costs and environmental risks. Robust and cost-effective monitoring tools are therefore essential to support integrated pest management (IPM) and reduce pesticide dependence. We systematically evaluated the performance of triangular pheromone traps under different deployment parameters and protected cultivation systems, aiming to develop a standardised monitoring protocol for T. absoluta in tomato crops. We compared triangular traps, planar traps, and colour sticky boards (blue, yellow, and white), quantified the effects of trap position (basal, mid-canopy, and apical) and diel time window (08:00-12:00, 12:00-16:00, 16:00-20:00, 20:00-08:00), and tested three protected cultivation systems over two consecutive seasons. Blue triangular traps deployed at the basal position consistently outperformed other configurations, with mean catches exceeding 40 adults per trap - more than twice those at mid-canopy or apical placements. Night-time deployment (20:00-08:00) captured over 60% of the total daily catch, confirming the predominantly nocturnal activity of T. absoluta. Across three cultivation systems and two seasons, blue triangular traps maintained stable monitoring efficiency and consistently outperformed yellow and white traps, while achieving a better balance between target catches and non-target interception than planar traps. These findings demonstrate that optimising trap colour, placement height, and deployment period substantially enhances T. absoluta monitoring. The optimised triangular trap configuration provides a practical, low-cost tool for precision IPM in protected tomato systems, with clear potential to support reductions in insecticide use and associated environmental contamination.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-7"},"PeriodicalIF":1.6,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147670664","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

Biological degradation of low-density polyethylene by Tenebrio molitor L. larvae, demonstrated through ultramicroscopy and chemical analyses. 黄粉虫幼虫对低密度聚乙烯的生物降解，通过超微显微镜和化学分析证明。

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2026-04-14 DOI: 10.1017/S0007485326100959

Sakshi Singh, Istkhar Rao, Parul Chauhan

{"title":"Biological degradation of low-density polyethylene by Tenebrio molitor L. larvae, demonstrated through ultramicroscopy and chemical analyses.","authors":"Sakshi Singh, Istkhar Rao, Parul Chauhan","doi":"10.1017/S0007485326100959","DOIUrl":"https://doi.org/10.1017/S0007485326100959","url":null,"abstract":"Low-density polyethylene (LDPE), a common polymer, resists environmental degradation because of its high molecular weight and hydrophobic nature. Although microbial agents have shown some potential for plastic biodegradation, their effectiveness is often limited. Recent studies have shown that insect larvae may also be promising candidates for the biological breakdown of plastic waste. This study aimed to quantify the biodegradation of commercial LDPE sheets by Tenebrio molitor (mealworm) larvae over 21 days. The extent of degradation was assessed by gravimetric analysis and by examining physical, morphological, and chemical changes in the polymer. Larval frass was analysed using Fourier-transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometry (GC-MS) to identify metabolic by-products. The results showed that T. molitor larvae actively consumed and degraded LDPE sheets, leading to an average weight reduction of 34.28%. Scanning electron microscopy revealed significant surface deterioration, characterised by pits and cavities. FTIR analysis of frass indicated cleavage of polymer chains and oxidation, evidenced by the disappearance of C-H stretching bands and the appearance of new hydroxyl and carbonyl groups. GC-MS analysis detected several intermediate compounds, such as esters, alkanes, and fatty acids, confirming the metabolic breakdown of LDPE. This study supports the potential of T. molitor as an effective biological agent for degrading LDPE plastic.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-13"},"PeriodicalIF":1.6,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147670737","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

Effect of long-term rearing of Euseius scutalis (Acari: Phytoseiidae) on cattail pollen on its functional and numerical responses fed on Tetranychus turkestani (Acari: Tetranychidae). 对香蒲花粉长期饲养对土耳其叶螨功能和数值响应的影响

IF 1.6 3区农林科学

Bulletin of Entomological Research Pub Date : 2026-04-01 DOI: 10.1017/S0007485325100588

Zahra Gorji, Parviz Shishehbor, Farhan Kocheili, Elham Riahi

{"title":"Effect of long-term rearing of Euseius scutalis (Acari: Phytoseiidae) on cattail pollen on its functional and numerical responses fed on Tetranychus turkestani (Acari: Tetranychidae).","authors":"Zahra Gorji, Parviz Shishehbor, Farhan Kocheili, Elham Riahi","doi":"10.1017/S0007485325100588","DOIUrl":"10.1017/S0007485325100588","url":null,"abstract":"Predatory mites are important biological control agents of spider mites in various crops. Long-term mass rearing on alternative foods, such as plant pollen, may affect their predatory efficiency, but data on Euseius scutalis are scarce. Therefore, this study aimed to evaluate whether long-term rearing of E. scutalis on cattail pollen influences its functional response when fed on Tetranychus turkestani. Functional and numerical responses of the predatory mite E. scutalis reared on cattail (Typha latifolia) pollen over 30 generations on different densities (2, 4, 8, 16, 32, 64, and 128) of T. turkestani were evaluated. The results indicated a type II functional response for E. scutalis on T. turkestani in all generations (G1, G10, G20, and G30) tested. The attack rate (a) of E. scutalis increased as the number of generations increased. The handling time decreased as the number of generations increased from G1 (0.330 h) to G10 (0.318 h), then increased in G20 (0.572 h) and then decreased again in G30 (0.385 h). In G1 and G30, the number of eggs deposited by the predator increased as prey density increased. However, in G10 and G20, egg deposition increased up to 64 prey and then slightly decreased at 128 prey. The results indicated that the quality of E. scutalis did not lessen against T. turkestani after different periods of rearing on cattail pollen. Based on this study, we recommend cattail pollen as a good candidate for the large-scale rearing of E. scutalis for use in biological control programmes against T. turkestani.","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"204-210"},"PeriodicalIF":1.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145707450","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