T Martinelli, M Lauria, I Mascheretti, D Goggioli, S Guidi, F Turillazzi, E Gagnarli, F Tarchi, P F Roversi, S Simoni
{"title":"Transgenerational phenotypic plasticity of the two-spotted spider mite (Tetranychus urticae Koch) in response to abamectin.","authors":"T Martinelli, M Lauria, I Mascheretti, D Goggioli, S Guidi, F Turillazzi, E Gagnarli, F Tarchi, P F Roversi, S Simoni","doi":"10.1007/s10493-025-01042-6","DOIUrl":"https://doi.org/10.1007/s10493-025-01042-6","url":null,"abstract":"<p><p>Tetranychus urticae Koch, commonly known as the two-spotted spider mite, is a serious threat to many crop species. This species can rapidly develop resistance to acaricides, rendering chemical control of the mite extremely difficult. In the present study, a homozygous mite population of T. urticae was established, and the potential involvement of transgenerational phenotypic plasticity in the development of resistance to the acaricide abamectin was investigated. The mite methylome was analyzed for the first time to evaluate the possible role of this epigenetic mark in the observed response to abamectin. The results showed a significant maladaptive transgenerational phenotypic response. Mites, previously exposed to abamectin treatments for seven consecutive generations, showed lower acaricide resistance compared to mites that were never treated with abamectin. This phenotype persisted for two consecutive generations after the termination of abamectin exposure. Methylome analysis of treated and untreated mite groups revealed that this species possessed an extremely low level of cytosine methylation, if any, suggesting that this epigenetic mark is unlikely to be involved in the transgenerational response. Overall, the results show that transgenerational phenotypic plasticity can significantly modify the phenotype of T. urticae. However, under the conditions tested, transgenerational phenotypic plasticity is not directly involved in the development of abamectin resistance. Further work is needed to better understand how transgenerational phenotypes are involved in the response of T. urticae to acaricides.</p>","PeriodicalId":12088,"journal":{"name":"Experimental and Applied Acarology","volume":"95 2","pages":"20"},"PeriodicalIF":1.8,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144607867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cleiton A Domingos, André S Melo, Maria L T Matheus, José E M Oliveira, José W S Melo, Manoel G C Gondim
{"title":"Differences in the effects of pollen and prey-based diets on the biological performance of Euseius citrifolius (Acari: Phytoseiidae): an important predator for phytophagous mites management in grapevines.","authors":"Cleiton A Domingos, André S Melo, Maria L T Matheus, José E M Oliveira, José W S Melo, Manoel G C Gondim","doi":"10.1007/s10493-025-01044-4","DOIUrl":"https://doi.org/10.1007/s10493-025-01044-4","url":null,"abstract":"<p><p>Euseius citrifolius Denmark & Muma is a type IV generalist predatory mite with a dietary preference for pollen. In this study, we tested the hypothesis that different prey, even if phylogenetically related and reared on the same host, can influence the predator's fitness by affecting its development and reproduction. We evaluated the biological performance of E. citrifolius when fed on Ricinus communis pollen and prey-based diets. Prey-based diets consisted of Oligonychus punicae and Tetranychus urticae reared on grapevines, as well as pollen. The following parameters of E. citrifolius were evaluated: developmental time of immature stages, longevity, reproduction, cumulative percentage of adults, mean oviposition rate, life-table parameters, and fertility. Oligonychus punicae and T. urticae diets resulted in a longer development time from egg to adult, increased longevity, higher oviposition rate, higher cumulative percentage of adults, and higher daily oviposition than the pollen diet. Although the pollen diet was less efficient at reproduction, it promoted higher viability. The net reproduction rate, intrinsic rate of increase, and mean generation time were higher in prey-based diets (O. punicae and T. urticae) than in the pollen diet. Overall, both prey diets supported the biological performance of E. citrifolius. These findings provide valuable insights for future research on the mass production of E. citrifolius and its potential for controlling O. punicae and T. urticae in grapevines.</p>","PeriodicalId":12088,"journal":{"name":"Experimental and Applied Acarology","volume":"95 2","pages":"16"},"PeriodicalIF":1.8,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jelena Burazerović, Katarina Breka, Marija Jovanović, Zvezdana Jovanović
{"title":"From mites to migration: linking Spinturnix psi morphometrics to the conservation of its host, the common bent-winged bat (Miniopterus schreibersii).","authors":"Jelena Burazerović, Katarina Breka, Marija Jovanović, Zvezdana Jovanović","doi":"10.1007/s10493-025-01045-3","DOIUrl":"https://doi.org/10.1007/s10493-025-01045-3","url":null,"abstract":"<p><p>Geometric morphometrics has contributed significantly to understanding ecological and evolutionary patterns by analyzing shape variation in biological structures, including species identification, population differentiation, and phenotypic plasticity of different organisms. In the context of bat ectoparasites, particularly wing mites, geometric morphometrics could present a novel approach for tracking the migratory patterns of bat hosts over time. To evaluate the morphological variation of Spinturnix psi (Kolenati, 1856) mites sampled from its typical host, Miniopterus schreibersii (Kuhl, 1817), in the three caves in eastern Serbia (Bogovinska, Sokolovica, and Sesalačka caves), we applied geometric morphometrics methods. We selected the sternal shield as the character to be analyzed and positioned 10 landmarks to describe its shape in females and 20 landmarks in males respectively. The analysis revealed statistically significant shape differences in the males, where a clear differentiation of specimens from Bogovinska cave compared to specimens from the other two localities was found, while in the females no differences were observed. Nevertheless, pairwise comparisons showed a weak but significant signal indicating differences between females from Bogovinska and Sesalačka caves. These subtle morphological variation in mites could help clarify the links between different host roosting sites, and a better understanding of the migration patterns of bats.</p>","PeriodicalId":12088,"journal":{"name":"Experimental and Applied Acarology","volume":"95 2","pages":"18"},"PeriodicalIF":1.8,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparative fitness of Proprioseiopsis asetus (Acari: Phytoseiidae) as a biocontrol agent against Megalurothrips usitatus and Thrips flavus.","authors":"Hui Zhang, Li Sun, Shuo Lin, Yuxian He, Hui Wei, Xia Chen","doi":"10.1007/s10493-025-01047-1","DOIUrl":"https://doi.org/10.1007/s10493-025-01047-1","url":null,"abstract":"<p><p>Proprioseiopsis asetus (Chant) (Acari: Phytoseiidae) is a newly developed and commercialized predatory mite that can prey on various phytophagous mites and small insects. To evaluate its potential as a biocontrol agent against pest thrips (Thysanoptera: Thripidae), we constructed age-stage, two-sex life tables and investigated the biological characteristics of P. asetus fed on two economically important thrip species, Megalurothrips usitatus and Thrips flavus (Thysanoptera: Thripidae), both of which cause significant crop damage. Our results show that P. asetus successfully develops and reproduces when fed on both thrips species, indicating its biocontrol potential against these pests. However, P. asetus reared on T. flavus exhibits shorter preadult duration, mean generation time (T), and population doubling time (DT), along with obviously reduced longevity, compared to P. asetus reared on M. usitatus. Despite the shorter lifespan, P. asetus fed on T. flavus shows significantly higher fecundity (F = 36.35 eggs/female), intrinsic rate of increase (r = 0.1816 d<sup>-1</sup>) and finite rate of increase (λ = 1.1991 d<sup>-1</sup>) than on M. usitatus (F = 30.75 eggs/female, r = 0.1375 d<sup>-1</sup> and λ = 1.1474 d<sup>-1</sup>). Notably, no significant differences were observed in net reproductive rate (R<sub>0</sub>), adult preoviposition period (APOP), total oviposition period (TPOP), or oviposition duration between the two prey species. These findings indicate that P. asetus is a promising biological control agent for both thrip species, with T. flavus being a more suitable prey to support its rapid development, high fecundity and faster population growth, despite the trade-off in adult longevity. Based on these results, we propose tailored biocontrol strategies: frequent releases of P. asetus for T. flavus management to compensate for its shorter lifespan, and early release for M. usitatus to establish a population before the pest reaches damaging levels, aiming for more efficient and sustainable pest management in crop production systems.</p>","PeriodicalId":12088,"journal":{"name":"Experimental and Applied Acarology","volume":"95 2","pages":"17"},"PeriodicalIF":1.8,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimizing Cheyletus malaccensis releases for the biocontrol of Liposcelis bostrychophila: Density-dependent efficacy in stored grains.","authors":"Yiwang Hu, Dingrong Xue, Panpan Zhang, Zhiqi Liu, Zhiyi Fang, Yu Zhang, Yi Wu","doi":"10.1007/s10493-025-01043-5","DOIUrl":"https://doi.org/10.1007/s10493-025-01043-5","url":null,"abstract":"<p><p>Cheyletus malaccensis (Oudemans), a generalist predatory mite, is a highly promising biocontrol agent applied for stored products pests management in grain storage systems. To optimize its field deployment, this study evaluated the population dynamics of C. malaccensis and Liposcelis bostrychophila (Badonnel) under varying predator-prey ratios (PPRs: 1:9, 1:5, 1:3, 1:1, 3:1) at 26.0 ± 0.1 °C and 75.0 ± 0.5% relative humidity in simulated grain storage environments. During the 49-day post-release period, the peak population reduction rates of L. bostrychophila at four PPRs (1:5, 1:3, 1:1, 3:1) reached 74.87%, 76.61%, 87.10%, and 95.90% respectively, whereas the 1:9 PPR treatment resulted in progressive pest population growth. Conversely, C. malaccensis population establishment rates increased exponentially with decreasing PPRs, peaking at 1,161.11% (1:9 PPR). These findings demonstrate a density-dependent trade-off: higher PPRs maximize short-term pest suppression, while lower ratios enhance long-term predator persistence. Therefore, we propose a two-phase deployment strategy: (i) preventive low-density releases (PPR < 1:5) prior to pest outbreaks to establish mite populations, and (ii) threshold-triggered supplementary releases based on real-time pest monitoring to achieve economical and long-term control of stored grain pests.</p>","PeriodicalId":12088,"journal":{"name":"Experimental and Applied Acarology","volume":"95 2","pages":"19"},"PeriodicalIF":1.8,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hugh Lefcort, Sean M Brockman, Jaxon W Hopkins, Sierra M Salter
{"title":"Ramification of relaxed thermoregulation by disease vectors under climate change.","authors":"Hugh Lefcort, Sean M Brockman, Jaxon W Hopkins, Sierra M Salter","doi":"10.1007/s10493-025-01041-7","DOIUrl":"https://doi.org/10.1007/s10493-025-01041-7","url":null,"abstract":"<p><p>Understanding how vector species such as ticks respond behaviorally to thermal and host-related cues is critical for predicting the effects of climate change on disease transmission. Ticks employ distinct questing strategies-ranging from static sit-and-wait behavior to active host seeking-that influence their exposure to abiotic stressors. We investigated whether Dermacentor andersoni and Dermacentor similis, two sit-and-wait tick species native to Eastern Washington, USA, exhibit behavioral plasticity in response to temperature gradients and host stimuli. We conducted three experiments to assess (1) thermal preferences of D. andersoni under host (dog) scent conditions, (2) thermotactic responses of both species to infrared (IR) radiation in the presence of dog odor, and (3) D. andersoni's approach behavior toward human hosts at various distances, i.e., a host emitting a combination of IR, CO<sub>2</sub>, and odors. In thermal gradient assays, D. andersoni showed significantly increased movement toward warmer zones following CO₂ exposure and exhibited wide thermal preferences depending on specific dog odors. However, when exposed to an IR source, we found strong sit-and-wait behaviors by D. andersoni and D. similis regardless of temperature or radiation. The ticks were not attracted to infrared radiation and did not move toward the stationary exposed hand of an observer. Ticks may prioritize optimal locations to encounter potential hosts, over enzymatically optimal temperatures. Rather than evolving to detect hosts at a distance, Haller's organs may have evolved to differentiate warm attachment sites from cooler fur. Our results suggest that Dermacentor questing behavior (remaining on station despite a different preferred temperature) may make them particularly vulnerable to future rises in temperature.</p>","PeriodicalId":12088,"journal":{"name":"Experimental and Applied Acarology","volume":"95 2","pages":"14"},"PeriodicalIF":1.8,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Igor Silva Silito, Matheus Pasini Martins, Thallitha Samih Wischral Jayme Vieira, Maria Carolina A Serpa, Isabella Pereira Pesenato, Agustin Estrada-Peña, Marcelo B Labruna
{"title":"Seach for tick-borne agents and detection of a novel Ehrlichia sp. in ticks from wild rabbits in Northern Spain.","authors":"Igor Silva Silito, Matheus Pasini Martins, Thallitha Samih Wischral Jayme Vieira, Maria Carolina A Serpa, Isabella Pereira Pesenato, Agustin Estrada-Peña, Marcelo B Labruna","doi":"10.1007/s10493-025-01046-2","DOIUrl":"https://doi.org/10.1007/s10493-025-01046-2","url":null,"abstract":"<p><p>This study aimed to investigate tick-borne agents in ticks (Ixodida: Ixodidae) collected from wild rabbits (Oryctolagus cuniculus) hunted in northern Spain in 2022. A total of 120 ticks were collected from 11 rabbits (mean: 13.7 ticks/rabbit), and identified as 109 Rhipicephalus pusillus and 11 Haemaphysalis hispanica. DNA was extracted from 89 R. pusillus and 5 H. hispanica and tested by a battery of PCR assays targeting tick-borne bacteria (genera Rickettsia, Borrelia, Coxiella, family Ehrlichiaceae) and protozoa (Piroplasmida). All ticks were negative for these agents, except for two specimens (one H. hispanica and one R. pusillus) that yielded amplicons by the Ehrlichiaceae 16 S rRNA assay. These two tick specimens were further tested by PCR assays targeting fragments of the ehrlichial genes groEL and dsb, which were generated only from H. hispanica. The groEL haplotype showed the closest identity (95%) with over 30 Ehrlichia haplotypes, while the dsb haplotype showed closest identity (88%) with 'Candidiatus Ehrlichia pampeana'. Phylogenetic analyses inferred from the groEL, and dsb partial sequences indicated that the ehrlichial agent detected in a H. hispanica male- here designated as Ehrlichia sp. Hhisp1- is a novel agent, distinct from all ehrlichial agents with available sequences in GenBank. Our finding of Ehrlichia sp. Hhisp1 in H. hispanica points out the possibility that the wild rabbit could be a reservoir of this novel ehrlichial agent since there is no transovarial transmission of Ehrlichia spp., and H hispanica is highly specific to wild rabbits and their burrows.</p>","PeriodicalId":12088,"journal":{"name":"Experimental and Applied Acarology","volume":"95 2","pages":"15"},"PeriodicalIF":1.8,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marcello De Giosa, Livia M S Ataide, Adam G Dale, Daniel A Hahn, Xingbo Wu, Ronald Ochoa, Samuel Bolton, Kevin R Cloonan, Alexandra M Revynthi
{"title":"Scrutinizing Acalitus simplex Flechtmann et Etienne (Eriophyidae): an eriophyoid mite associated with Ruellia spp. (Acanthaceae).","authors":"Marcello De Giosa, Livia M S Ataide, Adam G Dale, Daniel A Hahn, Xingbo Wu, Ronald Ochoa, Samuel Bolton, Kevin R Cloonan, Alexandra M Revynthi","doi":"10.1007/s10493-025-01040-8","DOIUrl":"https://doi.org/10.1007/s10493-025-01040-8","url":null,"abstract":"<p><p>Acalitus simplex is an erinose eriophyoid mite that feeds exclusively on plants in the genus Ruellia, which are frequently sold as ornamentals for landscape plantings. This study presents a comprehensive examination of A. simplex collected from Anguilla, Brazil, Dominican Republic, Florida, and Hawaii through sequencing of the mitochondrial cytochrome oxidase I gene (COI), coupled with morphological examination by several microscopy techniques. The collected A. simplex specimens were similar in morphology across geographic locations and populations clustered together in a phylogenetic analysis based on COI sequences. In addition to Ruellia simplex, new host plant associations are reported in Florida, including R. blechum, R. squarrosa and R. caroliniensis. We defined the different erineum stages, determined the number of days after infestation on an uninfested plant required for erinea development, and estimated population densities in each erineum stage. Four erineum stages were observed on R. simplex - hyaline (stage 1), white (stage 2), purple (stage 3) and beige (stage 4). At 25 ± 2 <sup>o</sup>C, 12:12/L: D and 50 ± 10% RH, the purple stage did not develop and the duration of the hyaline, white and beige erinea was 12.4 ± 0.7 (mean ± SE), 44.4 ± 1.3, and 20.5 ± 0.9 days, respectively. Population densities varied significantly across the erineum stages, with most individuals in the white and purple stages and fewer in the hyaline and beige stages. This study improves our understanding of interactions between A. simplex and R. simplex, aiding the development of IPM strategies to mitigate this mite.</p>","PeriodicalId":12088,"journal":{"name":"Experimental and Applied Acarology","volume":"95 2","pages":"13"},"PeriodicalIF":1.8,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144590754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maka Murvanidze, Mark Maraun, Jing-Zhong Lu, Levan Mumladze, Nino Todria, Tea Arabuli, Meri Salakaia, Giorgi Kirkitadze
{"title":"Disentangling the effect of tillage, herbicide, pesticide, and temperature change on oribatid mite communities in Georgia.","authors":"Maka Murvanidze, Mark Maraun, Jing-Zhong Lu, Levan Mumladze, Nino Todria, Tea Arabuli, Meri Salakaia, Giorgi Kirkitadze","doi":"10.1007/s10493-025-01033-7","DOIUrl":"https://doi.org/10.1007/s10493-025-01033-7","url":null,"abstract":"<p><p>Agricultural practices affect non-target soil fauna either directly or indirectly, e.g. by altering the soil physical structure or by application of chemicals. The effects of tillage, insecticide and herbicide applications on the dominant taxon of soil microarthropods-oribatid mites was studied in two fields over three years (2020, 2021, 2022) at three seasons (spring, summer and autumn). In total 87 species were identified. Herbicide and insecticide application had negative effects on oribatid mite species numbers and abundance; however, tillage mitigated the negative effects of herbicide and insecticide applications, possibly since tillage increases the rate of pesticide degradation and thereby reduces the direct exposure to soil fauna to those chemicals. Insecticides and tillage reduced the number of parthenogenetic individuals, possibly by a decrease of available resources (dead organic matter). Oribatid species richness and density steadily declined from 2020 to 2022 likely due to increased average annual temperature and decreased precipitation associated with global warming. The species richness and density declined from spring to summer and increased again in autumn. The annual decline of the oribatid species richness was expressed by the loss of oribatids with a thin cuticle (Mixonomata, Enarthronota, Oppioidea) and those, who are sensitive towards disturbance (Liacaridae, Ceratozetidae). Dry grassland specific species (Passalozetes africanus, P. perforatus, Scutovertex sculptus) were constantly present in all samples. The study points to the effects of agricultural practices on non-target soil fauna and also on the changes in soil animal communities from meadow to dry steppe species due to global warming.</p>","PeriodicalId":12088,"journal":{"name":"Experimental and Applied Acarology","volume":"95 2","pages":"12"},"PeriodicalIF":1.8,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144283051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jasna Bošnjak-Neumüller, Luis-Miguel Gomez Osorio, Dajana Todorović, Larisa Ilijin, Vesna Perić-Mataruga, Nikola Delić, Aleksandar Stanojković, Marko Pajić, Slobodan Kenežević, Jog Raj, Marko Vasiljević, Olivier Sparagano
{"title":"Essential oils as feed additives: A novel approach to managing poultry red mite infestations and boosting egg production.","authors":"Jasna Bošnjak-Neumüller, Luis-Miguel Gomez Osorio, Dajana Todorović, Larisa Ilijin, Vesna Perić-Mataruga, Nikola Delić, Aleksandar Stanojković, Marko Pajić, Slobodan Kenežević, Jog Raj, Marko Vasiljević, Olivier Sparagano","doi":"10.1007/s10493-025-01035-5","DOIUrl":"https://doi.org/10.1007/s10493-025-01035-5","url":null,"abstract":"<p><p>This study assessed the efficacy of a plant-based premix of feed additives (PFA) composed of essential oils and vitamins on a farm with 1560 laying hens (ISA Brown line), naturally infested with poultry red mite (PRM), Dermanyssus gallinae. The trial lasted 44 days. The AVIVET traps were used to determine PRM mass, number of eggs, larvae, blood-engorged and unfed nymphs, and adults on day - 12, - 5, and 0 before, and on days 2, 5, 8, 11, 15, 23, and 30, after, hens started to consume PFA. Friedman's ANOVA was utilised to identify differences between means, and the post hoc Wilcoxon matched Pairs Test was then employed to ascertain the impact of the tested PFA on the D. gallinae population. From the eighth day until the end of the trial period, a statistically lower mass of mites (P < 0.05), the number of nymphs (P < 0.05) and the number of blood-engorged mites (P < 0.05) were observed compared to day 0. In comparison to day 0, a statistically significantly lower number of eggs (P < 0.01) was observed on day 5 (P < 0.05), day 11 (P < 0.01), larvae on day 23 (P < 0.05) and day 30 (P < 0.01), as well as unfed mites on days 15, 23, and 30 (P < 0.01, P < 0.01 and P < 0.001, respectively). Egg production (%, hen-day) in 52-54 weeks of age (control period) was 88.7, while in 55-58 weeks of age (trial period) was 89.5. The results indicate that the tested PFA can control PRM without adversely affecting egg production.</p>","PeriodicalId":12088,"journal":{"name":"Experimental and Applied Acarology","volume":"95 1","pages":"10"},"PeriodicalIF":1.8,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}