Journal of economic entomology最新文献_第10页

Effect of sublethal doses of chlorantraniliprole on the activity of detoxification and protective enzymes in Galleria Mellonella (Lepidoptera: Pyralidae). 亚致死剂量氯虫腈对绿螟蛾解毒和保护酶活性的影响。

Journal of economic entomology Pub Date : 2025-08-29 DOI: 10.1093/jee/toaf049

Hui Wan, Guo Yong Li, Jian Kun Long, Guy Smagghe, Yang Yang Liu

{"title":"Effect of sublethal doses of chlorantraniliprole on the activity of detoxification and protective enzymes in Galleria Mellonella (Lepidoptera: Pyralidae).","authors":"Hui Wan, Guo Yong Li, Jian Kun Long, Guy Smagghe, Yang Yang Liu","doi":"10.1093/jee/toaf049","DOIUrl":"10.1093/jee/toaf049","url":null,"abstract":"Galleria mellonella Linnaeus (Lepidoptera: Pyralidae) is a pest that feeds on the spleen of honey bee nests worldwide. In this study, the toxicity of chlorantraniliprole (CAP) to G. mellonella was determined by ingestion toxicity and contact toxicity methods. We compared the effects of sublethal doses of CAP on the activity of major detoxification and protective enzymes as well as gene expression of related enzymes under the 2 treatment methods. The median lethal concentrations of CAP administered using ingestion toxicity and contact toxicity methods were 217.666 and 50.453 mg L-1, respectively. Compared with the control group, both methods increased the activities of carboxylesterase (CarE) and cytochrome P450 (CYP450), decreased the activities of glutathione S-transferase (GST) and peroxidase (POD), and had no effect on catalase activity. Superoxide dismutase activity decreased under ingestion toxicity but remained unchanged under contact toxicity. Significant changes were observed in the gene expression levels of detoxification and protective enzymes under both treatment methods; the expression levels of GmCarE4a, GmCarE2a, GmCarE1f, and GmPOD1a were significantly upregulated, whereas those of GmGST2a and GmGST2b were significantly downregulated. CAP exhibited both ingestion toxicity and contact toxicity against G. mellonella, with better contact toxicity effects. Galleria mellonella responded to CAP stress by adjusting enzyme activities (increasing CarE and CYP450 activities and decreasing GST and POD activities) and related gene expression levels (upregulating the relative expression levels of GmCarE4a, GmCarE2a, GmCarE1f, and GmPOD1a and downregulating those of GmGST2a and GmGST2b). The findings from the 2 distinct poisoning methods offer a scientific foundation for optimizing the application of CAP in the effective control of G. mellonella, while also providing valuable insights into the development of CAP resistance.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":"1669-1679"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of life tables and mate choice of two Neoseiulus californicus (Acari: Phytoseiidae) strains reared on natural and alternative prey. 两种加利福尼亚新绥螨（蜱螨亚纲：植物绥螨科）以自然和替代猎物为食的生命表和配偶选择比较。

Journal of economic entomology Pub Date : 2025-08-29 DOI: 10.1093/jee/toaf121

Meimei Mu, Jiayun Zhu, Feng Xiao, Min Liu, Haoran Zhang, Jixing Guo, Jing Liu, Di Fu, Daochao Jin, Lelei Wen, Rong Xiao

{"title":"Comparison of life tables and mate choice of two Neoseiulus californicus (Acari: Phytoseiidae) strains reared on natural and alternative prey.","authors":"Meimei Mu, Jiayun Zhu, Feng Xiao, Min Liu, Haoran Zhang, Jixing Guo, Jing Liu, Di Fu, Daochao Jin, Lelei Wen, Rong Xiao","doi":"10.1093/jee/toaf121","DOIUrl":"10.1093/jee/toaf121","url":null,"abstract":"Neoseiulus californicus McGregor (Acari: Phytoseiidae) is a commercialized natural predator of Tetranychidae mites. Natural and alternative prey species are commonly used in the mass rearing of predators. Long-term rearing of predatory mites on alternative prey may lead to a decline in life table parameters and the elimination of mate choice competition in their offspring. In this study, the development and reproduction of N. californicus reared on natural prey Tetranychus urticae Koch (Acari: Tetranychidae) and alternative prey Oulenziella bakeri Hughes (Acari: Winterschmidtiidae) were compared using age-stage, two-sex life tables. In addition, we compared the mate choice of N. californicus reared on the two prey species. Life table results showed that the natural prey strain developed faster, lived longer, and had a higher fecundity than the alternative prey strain. The population parameters (except for the mean generation time) of the natural prey strain were higher than the alternative prey strain. The mate choice study revealed that females of most mating combinations preferred to mate with the males of their own strain. Moreover, with an increase the number of male mites, the mating latency of the two strains gradually increased, while the mating duration shortened. These results demonstrate that rearing N. californicus with T. urticae is more beneficial for the fitness of the offspring than rearing with O. bakeri, providing theoretical reference for mass rearing mites in Phytoseiidae.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":"1643-1652"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diurnal hawkmoths as alternative pollinators for bitter gourd. 作为苦瓜替代传粉者的昼行蛾。

Journal of economic entomology Pub Date : 2025-08-29 DOI: 10.1093/jee/toaf138

Shigeki Kishi, Tomoya Tawaratsumida, Yoshihiro Tanaka, Tsunashi Kamo, Masayoshi K Hiraiwa, Aoi Nikkeshi

{"title":"Diurnal hawkmoths as alternative pollinators for bitter gourd.","authors":"Shigeki Kishi, Tomoya Tawaratsumida, Yoshihiro Tanaka, Tsunashi Kamo, Masayoshi K Hiraiwa, Aoi Nikkeshi","doi":"10.1093/jee/toaf138","DOIUrl":"10.1093/jee/toaf138","url":null,"abstract":"Bitter gourd, Momordica charantia L. (Cucurbitales: Cucurbitaceae), is a major vegetable crop in tropical and subtropical regions. Honeybees are considered the primary pollinators of bitter gourd, but they often favor male flowers, which offer nectar and pollen rewards, over female flowers, which do not. This preference can lead to pollination deficiency in bitter gourd. Therefore, exploring alternative pollinators for bitter gourd is crucial to ensure efficient pollination and optimal fruit production, especially in greenhouse settings where honeybee pollination may be less effective. We investigated the pollination efficiency of diurnal hawkmoths and compared it with that of honeybees, bumblebees, and small bees. Our findings revealed that hawkmoths exhibit equal visitation rates to both male and female bitter gourd flowers and deposit a significantly greater number of pollen grains per visit than those bees. This high pollination efficiency, combined with their nonselective flower visitation behavior, makes hawkmoths a promising alternative pollinator for bitter gourd. Our results suggest that hawkmoths could be effective pollinator agents for bitter gourd, especially in greenhouse settings. This discovery opens up new possibilities for sustainable agriculture and could lead to improved pollination strategies for bitter gourd and other cucurbit crops.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":"1519-1526"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of white goosefoot, sunflower, wheat, and soybean on the developmental and fecundity performance of the beet webworm, Loxostege sticticalis (Lepidoptera: Pyralidae). 白鹅足、向日葵、小麦和大豆对甜菜网虫发育和繁殖力的影响

Journal of economic entomology Pub Date : 2025-08-29 DOI: 10.1093/jee/toaf156

Yi Yan, Tongqiang Zhang, Weixiang Lv, Dianjie Xie, Yijie Qiao, Xiaolong Zhang, En Wu, Liwei Xing, Xingfu Jiang, Lei Zhang

{"title":"Impact of white goosefoot, sunflower, wheat, and soybean on the developmental and fecundity performance of the beet webworm, Loxostege sticticalis (Lepidoptera: Pyralidae).","authors":"Yi Yan, Tongqiang Zhang, Weixiang Lv, Dianjie Xie, Yijie Qiao, Xiaolong Zhang, En Wu, Liwei Xing, Xingfu Jiang, Lei Zhang","doi":"10.1093/jee/toaf156","DOIUrl":"10.1093/jee/toaf156","url":null,"abstract":"The beet webworm Loxostege sticticalis (Lepidoptera: Pyralidae), is an invasive and polyphagous pest, posing a severe threat to food security, agriculture, and animal production. In this study, we examined the biological parameters of L. sticticalis on four host plants: white goosefoot, Chenopodium album (Caryophyllales: Amaranthaceae), sunflower, Helianthus annuus L (Asterales: Compositae), wheat, Triticum aestivum L (Poales: Poaceae), and soybean, Glycine max (L.) Merr. (Fabales: Fabales). Our research found that, compared with white goosefoot, sunflowers, and wheat significantly lengthened larval development time. Additionally, adults feeding on sunflowers, wheat, and soybeans exhibited reduced egg-laying and oviposition periods. After feeding on wheat, key population parameters of the insect, including net reproductive rate (R0), intrinsic growth rate (r), and mean generation time (T), declined markedly. However, parameters r and λ still indicated positive population growth. These findings demonstrate the impact of different host plants on the biology of L. sticticalis and highlight the potential risks to its survival and spread when feeding on various hosts. They provide valuable information for pest monitoring and the development of control strategies.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":"1662-1668"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144562439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The impact of the BmSur8 gene, encoding a scaffold protein, on cocoon silk yield in Bombyx mori. 编码支架蛋白的BmSur8基因对家蚕蚕丝产量的影响。

Journal of economic entomology Pub Date : 2025-08-29 DOI: 10.1093/jee/toaf162

Si Zhou, Ying Gu, Houming Dai, Xun Zhou, Sheng Qin, Muwang Li, Xia Sun

{"title":"The impact of the BmSur8 gene, encoding a scaffold protein, on cocoon silk yield in Bombyx mori.","authors":"Si Zhou, Ying Gu, Houming Dai, Xun Zhou, Sheng Qin, Muwang Li, Xia Sun","doi":"10.1093/jee/toaf162","DOIUrl":"10.1093/jee/toaf162","url":null,"abstract":"Cocoon silk quality is a critical determinant of the economic value in the sericulture industry for Bombyx mori L. (Lepidoptera: Bombycidae). Sur8 functions as a positive regulator of the RAS-MAPK signaling cascade, which plays an essential role in regulating cocoon silk production in Bombyx mori. However, the specific functions of BmSur8 in silkworms have not been fully elucidated. In this study, we demonstrate that BmSur8 is a highly conserved gene expressed across all life stages and various tissues at the third day of the fifth instar larvae (L5D3) stage in Bombyx mori. Knockout of the BmSur8 gene results in a 15.2% reduction in silk yield in females and a 13.4% reduction in males, with the cocoon layer rate in females decreasing by 3.8%. Through transcriptomic analysis of posterior silk glands (PSGs) at L5D3 stage from ΔBmSur8 mutants and Nistari controls, as well as mass spectrometry analysis of BmSur8-interacting proteins in BmN cells, we find that BmSur8 potentially interacts with BmEtfb and regulates the expression of BmCDA and BmjunD, thereby participating in material and energy metabolism. This study provides a comprehensive analysis of the function of BmSur8 in metabolic pathways and offers theoretical insights and experimental data for researching silkworm cocoon silk quality and yield, as well as for breed selection and breeding.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":"1922-1932"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144610736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of DNA microarray technology for the simultaneous identification of agricultural Frankliniella thrips (Thysanoptera: Thripidae). DNA芯片技术在农业蓟马Frankliniella （Thysanoptera: Thripidae）同时鉴定中的应用。

Journal of economic entomology Pub Date : 2025-08-29 DOI: 10.1093/jee/toaf082

Watchalawalee Boonmee, Thai-Hong Pham, Zary Shariman Yahaya, Chun-I Chiu, Wen-Bin Yeh

{"title":"Application of DNA microarray technology for the simultaneous identification of agricultural Frankliniella thrips (Thysanoptera: Thripidae).","authors":"Watchalawalee Boonmee, Thai-Hong Pham, Zary Shariman Yahaya, Chun-I Chiu, Wen-Bin Yeh","doi":"10.1093/jee/toaf082","DOIUrl":"10.1093/jee/toaf082","url":null,"abstract":"Thrips (Insecta: Thysanoptera) are polyphagous insects that feed on various crops. Among them, species within the genus Frankliniella are particularly notorious pests and are subject to quarantine regulations globally. To facilitate rapid identification, species-specific primers based on polymerase chain reaction methods have been developed for certain Frankliniella species. Over the past decade, DNA microarray technology has become a valuable tool for the simultaneous identification of multiple insect pests. In this study, we used DNA microarray technology to identify 10 Frankliniella species. For each species, 4 to 8 species-specific probes were designed on the basis of nuclear ribosomal internal transcribed spacer 2 sequences. The analysis included adults and nymphs collected from agricultural products imported from 15 countries. A total of 62 species-specific probes were successfully developed for the identification of Frankliniella species. All probes demonstrated 100% specificity, except for Ffus_1D, which exhibited cross-hybridization with other Frankliniella species due to sequence similarity. The probes achieved high efficiency (more than 90%) in most cases. In addition, no signals were detected for 6 nontarget thrips species from different genera. However, some probes exhibited weak signal intensity, likely due to intraspecific variations in the internal transcribed spacer 2 sequence. The use of multiple species-specific probes can minimize the false-positive rate. Compared with single species-specific primers, which can identify only a few species, DNA microarray technology offers a reliable and efficient solution for the simultaneous identification of multiple thrips species.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":"1889-1900"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144639110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Developing a growing degree day model to guide integrated pest management of Eucosma giganteana, a pest of a novel perennial oilseed crop. 建立生长度日模型，指导多年生油料作物巨桉有害生物综合治理。

Journal of economic entomology Pub Date : 2025-08-29 DOI: 10.1093/jee/toaf107

Hazel F Scribner, Ebony G Murrell, Nervah E Chérémond, Jennifer Abshire, Joseph Castaldi, Kun Yan Zhu, William R Morrison

{"title":"Developing a growing degree day model to guide integrated pest management of Eucosma giganteana, a pest of a novel perennial oilseed crop.","authors":"Hazel F Scribner, Ebony G Murrell, Nervah E Chérémond, Jennifer Abshire, Joseph Castaldi, Kun Yan Zhu, William R Morrison","doi":"10.1093/jee/toaf107","DOIUrl":"10.1093/jee/toaf107","url":null,"abstract":"Eucosma giganteana (Riley) (Lepidoptera: Tortricidae) is a specialist pest on Silphium spp. including Silphium integrifolium. This pest is currently one of the major limiting factors to the development and commercialization of S. integrifolium in Kansas as a more sustainable oilseed alternative within its native range. One of the factors making E. giganteana difficult to manage is the lack of knowledge about when pest management tactics should be applied for maximum effect. To aid with proper timing, our objectives were to determine a lower activity threshold, then use it to develop a growing degree day model to estimate important phenological events in the life history of adult E. giganteana in the field. In addition, we found a good fit between the actual phenological events for E. giganteana from 2020, 2023, and 2024 and the predicted phenological events from trapping data collected in 2019 in Salina, Kansas. The lower activity threshold was determined to be 17 °C using a series of environmental chamber experiments with overwintering E. giganteana larvae. Furthermore, we found a significant correlation between predicted growing degree days for phenological events in 2019 and the actual degree day measurements for those events in subsequent years. Finally, the model was able to accurately predict adult E. giganteana emergence in the field during 2024. We anticipate the model will continue to provide accurate predictions for the coming years, which would allow for improved timing of pest management practices for E. giganteana to be implemented.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":"1711-1720"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficacy of wood ash and diatomaceous earth against Sitophilus granarius: influence of dose, environmental conditions, and geomorphological composition. 木灰和硅藻土对颗粒象虫的防治效果：剂量、环境条件和地貌组成的影响。

Journal of economic entomology Pub Date : 2025-08-29 DOI: 10.1093/jee/toaf109

Miha Curk, Tanja Bohinc, Stanislav Trdan

{"title":"Efficacy of wood ash and diatomaceous earth against Sitophilus granarius: influence of dose, environmental conditions, and geomorphological composition.","authors":"Miha Curk, Tanja Bohinc, Stanislav Trdan","doi":"10.1093/jee/toaf109","DOIUrl":"10.1093/jee/toaf109","url":null,"abstract":"This study evaluates the insecticidal efficacy of wood ash derived from various coniferous sources and a commercial diatomaceous earth product SilicoSec against adults of granary weevil, Sitophilus granarius (L.) (Coleoptera: Curculionidae). Morphological analyses revealed significant differences in particle sizes among treatments, with SilicoSec averaging 14.70 ± 1.85 µm, and wood ashes ranging from 160.51 ± 58.25 to 500.10 ± 183.58 µm. Geochemical analyses indicated that SilicoSec comprised 79.5% SiO2, whereas wood ashes contained 12.8% to 17.5% SiO2 and 31.0% to 37.6% CaO. Insecticidal assays demonstrated that all treatments achieved over 90% mortality; however, wood ash treatments exhibited greater variability, suggesting a dependence on concentration and environmental conditions. Probit modeling estimated that mortality increased by a factor of 2.77 with each concentration doubling. Analysis of variance indicated that neither temperature, nor relative humidity significantly affected lethal concentrations (LC50 and LC90). Notably, the diatomaceous earth product SilicoSec achieved consistent results at lower concentrations than currently recommended, suggesting potential for reduced application rates. Progeny emergence studies revealed that treatment efficacy was influenced by temperature and relative humidity, with higher temperatures and lower humidity levels enhancing mortality. Beta regression analysis confirmed that treatments and temperature significantly affected the proportion of dead beetles, whereas relative humidity and concentration did not. These findings underscore the importance of selecting appropriate treatment combinations and storage conditions to effectively control S. granarius populations.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":"1972-1980"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12397965/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144287664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transinfections of the endosymbiont Rickettsiella viridis in different Myzus persicae (Hemiptera: Aphididae) clones show consistent deleterious effects and stable transmission. 内共生体立克次体病毒在不同桃蚜（半翅目：蚜科）无性系间的转感染表现出一致的有害作用和稳定的传播。

Journal of economic entomology Pub Date : 2025-08-29 DOI: 10.1093/jee/toaf114

Xinyue Gu, Mel Berran, Ashritha Prithiv Sivaji Dorai, Qiong Yang, Monica Stelmach, Perran A Ross, Alex Gill, Eloïse Ansermin, Ella Yeatman, Paul A Umina, Ary A Hoffmann

{"title":"Transinfections of the endosymbiont Rickettsiella viridis in different Myzus persicae (Hemiptera: Aphididae) clones show consistent deleterious effects and stable transmission.","authors":"Xinyue Gu, Mel Berran, Ashritha Prithiv Sivaji Dorai, Qiong Yang, Monica Stelmach, Perran A Ross, Alex Gill, Eloïse Ansermin, Ella Yeatman, Paul A Umina, Ary A Hoffmann","doi":"10.1093/jee/toaf114","DOIUrl":"10.1093/jee/toaf114","url":null,"abstract":"Endosymbionts are widespread in insects, including aphids, and can have multiple effects on insect host fitness, suggesting potential applications for endosymbiont-related pest control. A transinfection of the endosymbiont Rickettsiella viridis into a line of the novel host Myzus persicae has previously shown large deleterious effects on aphid fitness and rapid spread in caged aphid populations under a cool environment. Because host clones can significantly influence endosymbiont effects and fitness-related traits more generally, it is important to test endosymbiont effects across a range of genotypic backgrounds. Here, we developed four Rickettsiella transinfected lines in different M. persicae clones via hemolymph microinjection, including clones with relatively high pesticide resistance. All four lines exhibited consistent fitness costs, reflected in reductions in both fecundity and longevity and reduced heat tolerance, although the magnitude of these effects varied among clones. The lines also resulted in stable and similar shifts in body color, with infected aphids being darker in color, although clonal effects were again observed. Vertical transmission was stable in all clones, and Rickettsiella infection was also shown to be transmitted horizontally between aphid pairs within Petri dishes in each clone. These results demonstrate consistent transmission and deleterious fitness effects of Rickettsiella transinfections, while also highlighting genetic background effects.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":"1544-1552"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12397968/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Supersedure, mites, and visible disease in Apis mellifera (Hymenoptera: Apidae) colonies explain differences in productivity and survival, but the effects may be difficult to see. 蜜蜂（膜翅目：蜜蜂科）群体中的寄生、螨虫和可见疾病解释了生产力和存活率的差异，但其影响可能很难看到。

Journal of economic entomology Pub Date : 2025-08-29 DOI: 10.1093/jee/toaf094

Michael Peirson, Abdullah Ibrahim, Lynae P Ovinge, Shelley E Hoover, Stephen F Pernal

{"title":"Supersedure, mites, and visible disease in Apis mellifera (Hymenoptera: Apidae) colonies explain differences in productivity and survival, but the effects may be difficult to see.","authors":"Michael Peirson, Abdullah Ibrahim, Lynae P Ovinge, Shelley E Hoover, Stephen F Pernal","doi":"10.1093/jee/toaf094","DOIUrl":"10.1093/jee/toaf094","url":null,"abstract":"We investigated whether field assessments of honey bee (Apis mellifera L.) colony health explain subsequent colony size, honey production, and survival. Field detections of visible diseases, Varroa destructor (Anderson and Trueman) and queen replacement events were recorded during a multisite cohort study, which also incorporated fumagillin and protein supplementation as colony-level treatments. Together, treatment groups and field observations explained between 5% of the variability in adult bee counts and 28% of the variability in honey production among colonies, after accounting for the effects of region and date. In particular, detections of minor disease symptoms, mainly chalkbrood, were associated with large reductions in honey production and approximately doubled the short-term probability of colony death. Although the effects of treatments and field-observed events were significant, unexplained variability among similarly managed colonies was much greater. Consequently, beekeepers may be unable to detect the effects of these field-observable factors, or distinguish effective treatments from ineffective ones. Despite this, interventions to reduce the prevalence of varroa and visible diseases, and to prevent queen loss, are likely to improve honey bee health and productivity.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":"1463-1474"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12397970/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144287666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0