Juan Peng, Lan-Lan Liao, Yi-Kuan Wu, Zhong-Yuan Wang, Lin Jin, Kai-Yun Fu, Wen-Chao Guo, Guo-Qing Li
{"title":"<i>E. coli-</i>generated dsRNA targeting <i>ribosomal protein L10, S11</i>, and <i>arginine kinase</i> via oral administration impairs larval development in <i>Tuta absoluta</i>.","authors":"Juan Peng, Lan-Lan Liao, Yi-Kuan Wu, Zhong-Yuan Wang, Lin Jin, Kai-Yun Fu, Wen-Chao Guo, Guo-Qing Li","doi":"10.1017/S0007485326101047","DOIUrl":"https://doi.org/10.1017/S0007485326101047","url":null,"abstract":"<p><p><i>Tuta absoluta</i> considerably damages tomato, potato, brinjal, sweet pepper, and tobacco in greenhouses and open fields on a global scale. RNA interference (RNAi) represents a promising control strategy. In this study, arginine kinase, ribosomal protein L10, and S11 encoding genes, <i>TaArgK, TaRpL10</i>, and <i>TaRpS11</i>, were selected. The three genes were stably expressed throughout the entire developmental excursion, from egg to adult. They were evenly transcribed in the head, foregut, midgut, hindgut, fat body, epidermis, and hemolymph of 2-day-old fourth-instar larvae. The RNAi efficacy of oral administration of dsRNA generated by <i>Escherichia coli</i> HT115 (DE3) strain and of microinjection of in vitro produced dsRNA was compared in the third instar larvae. The larvae that gnawed on dsRNA-immersed potato and tomato foliage for 24, 48, and 72 hours obtained 5.55, 11.1, and 16.65 μg, and 3.06, 6.12, and 9.18 μg of dsRNA, respectively. Ingestion of ds<i>ArgK</i>, ds<i>RpL10,</i> or ds<i>RpS11</i> caused an average reduction of target mRNA by 30.7%, 41.1%, and 61.4%, respectively, leading to 19.1%, 7.9%, and 17.4% of larval lethality, and reduced adult emergence by 33.6%, 27.2%, and 45.0%, respectively. A microinjection of 0.1 μL dsRNA solution introduced a total of 0.71 μg of dsRNA into the larva, but no RNAi effects were observed. Given that <i>E. coli</i> has been extensively used to safely and cost-efficiently produce dsRNA for large-scale agricultural implementation, our findings suggest the possibility that bacterially-expressed ds<i>RpS11</i> and ds<i>ArgK</i> may be used via a spray-induced gene silencing method in the field to protect growing crops against <i>T. absoluta</i>.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-11"},"PeriodicalIF":1.6,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147833981","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 different host plants on the developmental aspects and growth parameters of <i>Spodoptera frugiperda</i> (J.E. Smith) under laboratory conditions.","authors":"Mridula, Naveen Aggarwal, Jawala Jindal","doi":"10.1017/S0007485326101023","DOIUrl":"https://doi.org/10.1017/S0007485326101023","url":null,"abstract":"<p><p>The fall armyworm (FAW), <i>Spodoptera frugiperda</i> (J.E. Smith), feeds on a wide range of host plants, necessitating evaluation of host-specific effects on its development and reproduction. Age-stage, two-sex life table analysis was utilised to quantify developmental and population parameters on seven hosts: Maize (<i>Zea mays</i>), Napier bajra (<i>Pennisetum purpureum x P. glaucum</i>), Guinea grass (<i>Megathyrsus maximus</i>), Pigeon pea (<i>Cajanus cajan</i>), Mung bean (<i>Vigna radiata</i>), Soybean (<i>Glycine max</i>), and <i>Desmodium gangeticum</i> under controlled conditions (26 ± 1°C; 65 ± 5% RH; 14L:10D). FAW completed development on all hosts except <i>Desmodium</i>, as larval survival failed, underscoring its unsuitabilityand potential as a deterrent crop. Maize was the most suitable host, supporting shortest larval (12.89 days) and pupal (7.87 days) durations, highest pupal weight (197.02 mg), fecundity (733.28 eggs per female), and superior population parameters, including the highest intrinsic rate of increase (<i>r<sub>m</sub></i> = 0.213), net reproductive rate (<i>R₀</i> = 366.64), and shortest generation time (<i>T</i> = 27.63 days). Napier bajra and guinea grass supported moderate performance, suggesting potential as trap crops under laboratory conditions. Legumes were unsuitable for different developmental stages, indicating their potential as a suppressive host. Mung bean was the destitute host, with prolonged larval (27.02 days) and pupal (9.85 days) durations, lowest pupal weight (127.32 mg), reduced fecundity (152.91 eggs per female), and suppressed demographic parameters (<i>r<sub>m</sub></i> = 0.079; <i>R₀</i> = 33.64; <i>T</i> = 44.74 days). These host-mediated responses provide biologically grounded insights for trap and deterrent crop selection for strengthening habitat-manipulation strategies for FAW management in Indian agroecosystems.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-14"},"PeriodicalIF":1.6,"publicationDate":"2026-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147763299","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":"<i>Enterobacter</i>-based dietary supplements in both larvae and adult diet affect thermal response of sterile males.","authors":"Georgia Papadogiorgou, Panagiota Koskinioti, Vasilis Rodovitis, Gerasimos Giannatos, Antonios Augustinos, George Tsiamis, Nikos Papadopoulos","doi":"10.1017/S0007485326101035","DOIUrl":"https://doi.org/10.1017/S0007485326101035","url":null,"abstract":"<p><p>Thermal stress can affect the field performance of sterile males used in the sterile insect technique (SIT). We tested whether adding autoclaved <i>Enterobacter</i> as a dietary supplement improves thermal tolerance in sterile Vienna 8 genetic sexing strain males of <i>Ceratitis capitata</i>. Larval and adult diets were supplemented with autoclaved <i>Enterobacter</i>, and critical thermal limits - critical thermal minimum (CTmin), critical thermal maximum (CTmax), and chill-coma recovery time (CCRT) - were measured. <i>Enterobacter</i> supplementation affected neither CTmin nor CTmax. In contrast, CCRT was strongly influenced by larval diet: sterile males reared on the standard diet recovered faster than those reared on the <i>Enterobacter</i>-supplemented diet. Wild males showed a lower CTmax but a much faster CCRT than sterile males. Overall, <i>Enterobacter</i> supplementation did not improve thermal limits but affected chill-coma recovery, highlighting the importance of characterising the thermal profile of sterile males before release and the complex interplay between food quality, physiology, and mass-rearing in the successful application of SIT.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-9"},"PeriodicalIF":1.6,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147763336","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}
Thibault Nève de Mévergnies, Emma Servais, Johan Van Keer, Léon Baert, Jaime Escobar-Toledo, Ronan Marrec, Kévin Tougeron, Anne-Laure Jacquemart, Arnaud Henrard, Thierry Hance
{"title":"Seasonality mediates local and landscape drivers of ground-dwelling spiders in temperate agro-ecosystems.","authors":"Thibault Nève de Mévergnies, Emma Servais, Johan Van Keer, Léon Baert, Jaime Escobar-Toledo, Ronan Marrec, Kévin Tougeron, Anne-Laure Jacquemart, Arnaud Henrard, Thierry Hance","doi":"10.1017/S0007485326100947","DOIUrl":"https://doi.org/10.1017/S0007485326100947","url":null,"abstract":"<p><p>Agricultural intensification has a strong impact on arthropod diversity, yet predators such as spiders provide key ecosystem services through natural pest regulation. Understanding how local and landscape factors shape spider assemblages throughout the season is essential for designing effective agro-ecological infrastructures that can sustain their services in crop systems. We investigated ground-dwelling spider communities in Belgian winter cereal fields and their margins. Pitfall traps were used across seasons to assess the effects of habitat (field vs. margin), surrounding crop cover, and seasonal dynamics on spider richness, activity-density, and community structure. Results show that spider activity-densities were consistently higher in margins than in fields, whereas species richness showed no significant differences between these habitats. Significant seasonal variations were detected on both spider richness and abundance. The landscape effect of the annual crop cover was context dependent, showing seasonal and species-specific patterns and even positive associations in autumn. Seasonal shifts also reflected life stage and sex-specific phenologies. This study reveals that spider communities in Belgian cereal systems are shaped by interacting local, landscape, and seasonal factors. Margins mainly act as refuges that bolster spider numbers rather than species pools, while the influence of the surrounding landscape depends on the season and the species identity. These findings highlight the need to incorporate temporal and biological context when designing margins and other agro-ecological infrastructures to support natural pest regulation providers such as spiders.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-13"},"PeriodicalIF":1.6,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147763297","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":"Hemocyte profiles of <i>Hierodula tenuidentata</i> and <i>Empusa fasciata</i> 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":"<p><p>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 <i>Hierodula tenuidentata</i> and <i>Empusa fasciata</i>. 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 <i>H. tenuidentata</i> under a light microscope. Differential hemocyte counts revealed granulocytes as predominant in <i>H. tenuidentata</i>, whereas both granulocytes and plasmatocytes were abundant in <i>E. fasciata</i> 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 <i>Musca domestica</i> L. (Diptera: Muscidae) and <i>Lycaena</i> 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 <i>H. tenuidentata</i> and <i>E. fasciata</i>.</p>","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}
Kangwei Wang, Yuepeng Qiu, Hongyan Hu, Xianpeng Song, Yongpan Shan, Dan Wang, Changcai Wu, Yajie Ma, Yan Ma, Xiangliang Ren
{"title":"Transgenerational suppression of <i>Aphis gossypii</i> 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":"<p><p><i>Aphis gossypii</i> 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 <i>A. gossypii</i>. However, the effects of combining DPC with insecticides on the development and population dynamics of <i>A. gossypii</i> remain unclear. Therefore, this study investigated the effects of DPC in conjunction with sublethal doses of imidacloprid (IMI-LC<sub>30</sub>) and sulfoxaflor (SUL-LC<sub>30</sub>) on the toxicity and sublethal effects of <i>A. gossypii</i>, 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-LC<sub>30</sub> or SUL-LC<sub>30</sub> alone, the combination treatments showed no significant differences in longevity, fecundity, and population parameters of the F<sub>0</sub> generation. However, the fecundity of the F<sub>1</sub> generation was significantly reduced, and population parameters also exhibited a decreasing trend. Moreover, exposure of <i>A. gossypii</i> to IMI-LC<sub>30</sub> or SUL-LC<sub>30</sub> resulted in the upregulation of reproduction-related genes <i>Vg</i> and <i>VgR</i> in the F<sub>1</sub> generation. This effect was suppressed when either IMI-LC<sub>30</sub> or SUL-LC<sub>30</sub> was co-applied with DPC. These findings demonstrate that combining DPC, in combination with IMI or SUL, can suppress the population resurgence of <i>A. gossypii</i> induced by sublethal exposure to these insecticides on their own. This research provides insights for the effective use of DPC and insecticides.</p>","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}
{"title":"DNA barcodes reveal population structure in a widely-distributed agricultural pest, the Hawaiian beet webworm <i>Spoladea recurvalis</i> (Lepidoptera: Crambidae).","authors":"Edward Pfeiler","doi":"10.1017/S0007485326100996","DOIUrl":"https://doi.org/10.1017/S0007485326100996","url":null,"abstract":"<p><p>Population genetic analysis of mitochondrial DNA barcodes, comprised of a standard segment of the cytochrome <i>c</i> oxidase subunit I gene (COI or <i>cox1</i>), was conducted on <i>Spoladea recurvalis</i> (Fabricius), an important agricultural pest commonly referred to as the Hawaiian beet webworm. Results of genetic diversity analyses indicate significant population structure between samples mainly from Australia and nearby regions and those from North America, Africa, Europe, and Asia. Adults of the two groups are morphologically indistinguishable but are characterised by diagnostic barcode nucleotides and genetic diversity values. Factors possibly involved in driving genetic divergence in <i>S. recurvalis</i> in the Australian region are briefly discussed.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-9"},"PeriodicalIF":1.6,"publicationDate":"2026-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147721963","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":"Assessing the resistance of soybean genotypes to <i>Callosobruchus chinensis</i> L. (Coleoptera: Chrysomelidae) in Ethiopia.","authors":"Minyahil Kebede Earecho, Seid Ahmed Seid","doi":"10.1017/S0007485326100972","DOIUrl":"https://doi.org/10.1017/S0007485326100972","url":null,"abstract":"<p><p>Soybean (<i>Glycine max</i> L.) is a globally significant crop, valued for its high protein content and vegetable oil, which serve vital roles in both food and industrial applications. However, the soybean bruchid (<i>Callosobruchus chinensis</i> L.) infests soybean seeds in Ethiopia, especially during storage, and this infestation threatens their post-harvest quality. This study evaluated the resistance of 50 soybean genotypes against <i>C. chinensis</i> by analysing oviposition rates, adult emergence, and seed weight loss. Results revealed substantial genetic variation among genotypes for their resistance. Two genotypes (G-44 and G-38) exhibited strong resistance, and 16 showed moderate resistance, while the rest were susceptible. The vulnerability of released cultivars in Ethiopia underscores the critical importance of integrating bruchid resistance into future breeding programmes. Addressing this challenge is critical for sustaining soybean productivity and ensuring post-harvest seed integrity in bruchid-prone regions.</p>","PeriodicalId":9370,"journal":{"name":"Bulletin of Entomological Research","volume":" ","pages":"1-10"},"PeriodicalIF":1.6,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147697804","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":"Host size and sex effects on parasitism by the Irish strain of <i>Microctonus aethiopoides</i> 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":"<p><p>The impact of host size and sex on parasitism by the Irish strain of the hymenopteran parasitoid <i>Microctonus aethiopoides</i> 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 <i>Sitona obsoletus</i> Gmelin averaged heavier weights than males (7.0 mg vs. 5.4 mg, <i>P</i> < 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 <i>S. obsoletus</i> in the field, a no-choice cage study revealed that <i>M. aethiopoides</i> had lower parasitism rates (74% vs. 91%, <i>P</i> < 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 <i>M. aethiopoides</i> population resilience. By breaking the previous generation synchrony, the population would be less vulnerable to being decimated by a single adverse event.</p>","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}
{"title":"Two-sex life tables of bifenthrin-selected and unselected strains of <i>Chrysoperla carnea</i>: 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":"<p><p><i>Chrysoperla carnea</i> (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 <i>C. carnea</i> and their reciprocal crosses (C<sub>1</sub> and C<sub>2</sub>) by using an age-stage and two-sex life table approach. After continuous selection with bifenthrin (44 generations), the Bifen-Sel strain of <i>C. carnea</i> 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 C<sub>1</sub> and C<sub>2</sub>. 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 (<i>r<sub>m</sub></i>), finite rate (<i>λ</i>), net reproductive rate (<i>R</i><sub>0</sub>), mean generation rate (<i>T</i>), and gross reproductive rate of the Bifen-Sel strain, were similar to those of the Unsel strain but significantly higher than those of the C<sub>1</sub> and C<sub>2</sub> crosses of <i>C. carnea</i>. Bifenthrin resistance was stable in the Bifen-Sel strain of <i>C. carnea</i>. These findings provide valuable insights into bifenthrin resistance dynamics in <i>C. carnea</i> 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.</p>","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}