Laura A. Reeves, Michael P. D. Garratt, Michelle T. Fountain, Deepa Senapathi
{"title":"A whole ecosystem approach to pear psyllid (Cacopsylla pyri) management in a changing climate","authors":"Laura A. Reeves, Michael P. D. Garratt, Michelle T. Fountain, Deepa Senapathi","doi":"10.1007/s10340-024-01772-3","DOIUrl":"https://doi.org/10.1007/s10340-024-01772-3","url":null,"abstract":"<p>Whole ecosystem-based approaches are becoming increasingly common in pest management within agricultural systems. These strategies consider all trophic levels and abiotic processes within an ecosystem, including interactions between different factors. This review outlines a whole ecosystem approach to the integrated pest management of pear psyllid (<i>Cacopsylla pyri</i> Linnaeus) within pear (<i>Pyrus communis</i> L.) orchards, focusing on potential disruptions as a result of climate change. Pear psyllid is estimated to cost the UK pear industry £5 million per annum and has a significant economic impact on pear production globally. Pesticide resistance is well documented in psyllids, leading to many growers to rely on biological control using natural enemies during the summer months. In addition, multiple insecticides commonly used in pear psyllid control have been withdrawn from the UK and Europe, emphasising the need for alternative control methods. There is growing concern that climate change could alter trophic interactions and phenological events within agroecosystems. For example, warmer temperatures could lead to earlier pear flowering and pest emergence, as well as faster insect development rates and altered activity levels. If climate change impacts pear psyllid differently to natural enemies, then trophic mismatches could occur, impacting pest populations. This review aims to evaluate current strategies used in <i>C. pyri</i> management, discuss trophic interactions within this agroecosystem and highlight potential changes in the top-down and bottom-up control of <i>C. pyri</i> as a result of climate change. This review provides a recommended approach to pear psyllid management, identifies evidence gaps and outlines areas of future research.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140340915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Substrate-borne vibrations produced during the interaction with natural enemies alter aphids probing behavior","authors":"Caterina Zippari, Rachele Nieri, Zeinab Hamouche, Abderrahmane Boucherf, Giovanni Tamburini, Gianfranco Anfora, Vincenzo Verrastro, Valerio Mazzoni, Daniele Cornara","doi":"10.1007/s10340-024-01761-6","DOIUrl":"https://doi.org/10.1007/s10340-024-01761-6","url":null,"abstract":"<p>The “ecology of fear”, i.e., physiological and behavioral alterations displayed by pests in response to predation risk, has recently been proposed as a sustainable alternative to chemicals for pest control. However, the development of such a strategy requires a detailed understanding of the signals and cues underlying the pest-antagonist interaction and eliciting the prey behavioral alteration. Here, we characterized the substrate-borne vibrations produced during the interaction between the green peach aphid <i>Myzus persicae</i> and its antagonists, the parasitoid wasp <i>Aphidius colemani</i> and the ladybug <i>Adalia bipunctata.</i> Thereafter, coupling the electrical penetration graph (EPG) with a stimulus controller, we evaluated whether the playback of the vibrations, alone and in combination with the alarm pheromone, impacted aphid probing behavior and interaction with the host plant. Aphids responded to vibrations exhibiting longer non-probing, shorter intracellular probes, i.e. the behavior through which the insect evaluates host plant quality, delay in accessing the phloem vessels and decrease of the frequency of phloem salivation events. In contrast, on plants treated with the alarm pheromone, insects displayed longer intracellular probes. We hypothesize that the alarm pheromone, signaling a distant threat, might induce a careful evaluation of the host plant in order to decide the magnitude of the reaction. On the other hand, vibrations might indicate a closely approaching threat pushing the aphid to rush the host evaluation process and the whole feeding process. The possible repercussion of the behavioral alterations observed on the dynamics of aphid-borne plant virus transmission is also discussed.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140329277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Matěj Novák, Roman Pavela, Eleonora Spinozzi, Marta Ferrati, Riccardo Petrelli, Filippo Maggi, Renato Ricciardi, Giovanni Benelli
{"title":"Lethal and sublethal effects of carlina oxide on the aphid Metopolophium dirhodum and its non-target impact on two biological control agents","authors":"Matěj Novák, Roman Pavela, Eleonora Spinozzi, Marta Ferrati, Riccardo Petrelli, Filippo Maggi, Renato Ricciardi, Giovanni Benelli","doi":"10.1007/s10340-024-01768-z","DOIUrl":"https://doi.org/10.1007/s10340-024-01768-z","url":null,"abstract":"<p>This study was designed to investigate the acute toxicity (mortality) and sublethal effects (fertility and potential natality) of carlina oxide, the main constituent of <i>Carlina acaulis</i> essential oil (EO), against adults of <i>Metopolophium dirhodum</i> (Walker) (Hemiptera: Aphididae). Moreover, its toxicity was evaluated against two aphid natural enemies, i.e., <i>Aphidoletes aphidimyza</i> Rondani (Diptera: Cecidomyiidae) and <i>Chrysoperla carnea</i> Stephens (Neuroptera: Chrysopidae). The highest tested concentration (3.0 mL L<sup>−1</sup>) resulted in 96.7% mortality of adults of the target pest, highlighting that this concentration of carlina oxide had a similar effectiveness as the positive control we used. Furthermore, probit analysis allowed the estimation of a LC<sub>50</sub> of 1.06 mL L<sup>−1</sup> and a LC<sub>90</sub> of 2.58 mL L<sup>−1</sup> for the target pest, which resulted in a much higher mortality rate than that found on natural enemies, i.e., <i>A. aphidimyza</i> (6.7 ± 4.7% ± SD when exposed to the aphid LC<sub>90</sub>) and <i>C. carnea</i> (7.0 ± 5.5% ± SD when exposed to the aphid LC<sub>90</sub>), showing the limited non-target impact of carlina oxide. The use of LC<sub>30</sub> and LC<sub>50</sub> of this compound allowed the fertility inhibition of the target pest by 35.68 ± 6.21% and 23.66 ± 10.58%, respectively, and potential natality inhibition of the target pest by 52.78 ± 4.48% and 59.69 ± 5.60%, respectively. Of note, carlina oxide showed excellent insecticidal activity against <i>M. dirhodum,</i> comparable to the commercial insecticide considered. Overall, the low toxicity of carlina oxide toward <i>A. aphidimyza</i> and <i>C. carnea</i> makes it a safe compound for non-target organisms as well as suitable for developing a green insecticide for the management of <i>M. dirhodum</i> and perhaps other insects of agricultural or medical and veterinary interest.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140291767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Diurnal temperature fluctuations improve predictions of developmental rates in the spruce bark beetle Ips typographus","authors":"Sven Hofmann, Martin Schebeck, Markus Kautz","doi":"10.1007/s10340-024-01758-1","DOIUrl":"https://doi.org/10.1007/s10340-024-01758-1","url":null,"abstract":"<p>The European spruce bark beetle <i>Ips typographus</i> is a widespread pest in Norway spruce-dominated forests in Eurasia. Predicting its phenology and voltinism is crucial to plan forest management measures and to mitigate mass outbreaks. Current phenology models are based on constant temperatures inferred from laboratory experiments; however, insect life cycles under natural conditions are rather driven by diurnal and seasonal temperature fluctuations. Therefore, phenology models based on fluctuating temperatures would reflect field conditions more realistically and might thus improve model predictions. In a laboratory experiment, we investigated the development of <i>I. typographus</i>, applying mean temperatures between 3 and 35 °C and diurnal temperature oscillations of up to ± 15 °C. Subsequently, we calibrated developmental rate models and applied them to climate data, in order to assess the effect of temperature fluctuations on voltinism under field conditions. Our results showed that diurnal temperature oscillations significantly affected developmental rates. Compared to constant temperatures, development was faster at temperature oscillations falling below the lower developmental threshold, and slower at temperature oscillations exceeding the developmental optimum. Furthermore, short exposures to suboptimal temperatures affected <i>I. typographus</i> less than expected from constant conditions. Natural temperature fluctuations thus accelerate development under cool, shaded conditions, whilst slowing it under hot, sun-exposed conditions, thereby ultimately affecting voltinism. Our findings highlight the importance to account for diurnal temperature fluctuations for more accurate predictions of developmental rates of <i>I. typographus</i> in natural thermal environments, and provide the fundament for improving current phenology models to support effective bark beetle management in a warming climate.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140192672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sugarcane borers: species, distribution, damage and management options","authors":"Ao-Mei Li, Zhong-Liang Chen, Fen Liao, Yong Zhao, Cui-Xian Qin, Miao Wang, You-Qiang Pan, Shao-Long Wei, Dong-Liang Huang","doi":"10.1007/s10340-024-01750-9","DOIUrl":"https://doi.org/10.1007/s10340-024-01750-9","url":null,"abstract":"<p>Lepidopteran borers stand out as the most destructive pests in sugarcane, leading to reductions in stalk weight, juice quality and sugar recovery. Presently, integrated pest management (IPM) systems are utilized for sugarcane borer management, employing diverse methods encompassing cropping system, chemical pesticides, behavioral manipulation, biological agents and the selection of resistant varieties. However, the effectiveness of this strategy remains controversial due to concerns about harmful residues, formulation limitations, environmental variability, labor shortages and increased input costs. Currently, multiple lines of transgenic sugarcane expressing insecticidal genes from the bacterium <i>Bacillus thuringiensis</i> (Bt) have been developed globally, offering the prospect of increases production with reduced pesticides application, thereby eliminating the negative effect of IPM. In Brazil, the first genetically modified sugarcane cultivars resistant to the sugarcane borer have been approved and released for commercial cultivation, shedding a bright light on a viable solution for sugarcane borers. This paper reviews borer species and distribution, the significant damage caused by sugarcane borers, current control approaches and the future effective control strategies. Additionally, this work provides comprehensive understanding on Bt sugarcane, serving as an additional tool to complement conventional sugarcane borers control resistance programs.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140182947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of Xenorhabdus and Photorhabdus bacterial metabolites on the ovipositional activity of Aedes albopictus","authors":"Mustapha Touray, Harun Cimen, Edna Bode, Helge B. Bode, Selcuk Hazir","doi":"10.1007/s10340-024-01760-7","DOIUrl":"https://doi.org/10.1007/s10340-024-01760-7","url":null,"abstract":"<p>Viral diseases like yellow fever, dengue, and Zika have an alarming impact on public health. These diseases can be transmitted by <i>Aedes</i> mosquito species, such as Ae. albopictus, which is now found in many countries outside its original range. <i>Xenorhabdus</i> and <i>Photorhabdus</i> spp. are enteric bacterial symbionts of insect-preying nematodes and are known to produce an array of natural products with various activities including larvicidal activity. In this study, the effects of natural products produced by four <i>Xenorhabdus</i> and one <i>Photorhabdus</i> bacteria on the ovipositional behavior of <i>Ae. albopictus</i> mosquitoes were assessed. Utilizing a binary choice assay in insect cages, gravid female mosquitoes were presented with two oviposition cups containing water supplemented with varying concentrations of bacterial supernatants (50–1% concentrations) versus control medium. After 72 h, the eggs deposited on filter papers were counted. The oviposition attractant index (OAI) feature of the bacterial supernatant was evaluated using the number of eggs laid in the cups. Notably, all tested supernatants exhibited concentration-dependent deterrence of oviposition. <i>Xenorhabdus cabanillasii</i> displayed the strongest deterrent effect, inhibiting egg-laying at 50–5% concentrations (OAI: − 0.87 to − 0.35), followed by <i>X. nematophila</i> (50–10%, OAI: − 0.82 to − 0.52). <i>Xenorhabdus szentirmaii, X. doucetiae,</i> and <i>P. kayaii</i> showed significant deterrence at ≥ 20% concentrations. Using promoter exchange mutants generated by the easyPACId approach, fabclavine from <i>X. szentirmaii</i> was identified as the bioactive compound with evident deterrent effects. Such deterrents targeting egg-laying could be valuable for controlling populations by disrupting their breeding in suitable habitats.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140182868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of Gelsemium elegans extract on the red fire ant: disruption of peritrophic membrane integrity and alteration of gut microbial diversity, composition, and function","authors":"Qun Zheng, Wenjuan Yan, Shiqi Zhu, Xiaoran Miao, Jian Wu, Zewei Lin, Suqing Huang, Dongmei Cheng, Hanhong Xu, Zhixiang Zhang, Peiwen Zhang","doi":"10.1007/s10340-024-01769-y","DOIUrl":"https://doi.org/10.1007/s10340-024-01769-y","url":null,"abstract":"<p><i>Gelsemium elegans</i> Benth. (<i>Loganiaceae</i>), also known as heartbreak herb, can be used in the manufacture of herbal medicines. Insecticidal activity has also been found and can be used to develop botanical insecticides. This study aimed to reveal the insecticidal mechanism of its extracts against red fire ants and provide strategies for the development of biopesticides and the promotion of green and sustainable agriculture. 16s rRNA, pathohistological, behavioral, and enzyme activity assays were performed to reveal its biological effects, including the effects on non-target organisms. Our results showed that red fire ants exposed to <i>G. elegans</i> extracts exhibited slowed growth, reduced feeding, and decreased aggressiveness. The midgut and its peritrophic membrane of red fire ant were significantly disrupted, the diversity of gut microbial community was reduced, and the balance of microbial composition was disturbed. Significant increases in functional abundance of xenobiotics biodegradation and metabolism pathway and P450s enzyme activity confirmed the toxic stress of <i>G. elegans</i> extract. Functional prediction of Kyoto Encyclopedia of Genes and Genomes pathway showed that the functional abundance of novobiocin biosynthesis, flavonoid biosynthesis, lysosome, proteasome, and wingless/integrated signaling pathways were significantly inhibited in the gut. Besides, <i>G. elegans</i> extracts induced an increase in acetylcholinesterase activity. These results revealed dysregulation of immune system and metabolic functions in red fire ants, as well as toxic effects of <i>G. elegans</i> extracts on physiological functions and nerves. These findings revealed the insecticidal mechanism of <i>G. elegans</i> and supported the development of eco-friendly insecticides for red fire ants.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140182875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Timing matters: remotely sensed vegetation greenness can predict insect vector migration and therefore outbreaks of curly top disease","authors":"","doi":"10.1007/s10340-024-01771-4","DOIUrl":"https://doi.org/10.1007/s10340-024-01771-4","url":null,"abstract":"<h3>Abstract</h3> <p>Due to climate change, outbreaks of insect-vectored plant viruses have become increasingly unpredictable. In-depth insights into region-level spatio-temporal dynamics of insect vector migration can be used to forecast plant virus outbreaks in agricultural landscapes; yet, it is often poorly understood. To explore this, we examined the incidence of <em>beet curly top virus</em> (BCTV) in 2,196 tomato fields from 2013 to 2022. In America, the beet leafhopper (<em>Circulifer tenellus</em>) is the exclusive vector of BCTV. We examined factors associated with BCTV incidence and spring migration of the beet leafhopper from non-agricultural overwintering areas. We conducted an experimental study to demonstrate beet leafhopper dispersal in response to greenness of plants, and spring migration time was estimated using a model based on vegetation greenness. We found a negative correlation between vegetation greenness and spring migration probability from the overwintering areas. Furthermore, BCTV incidence was significantly associated with spring migration time rather than environmental conditions <em>per se</em>. Specifically, severe BCTV outbreaks in California in 2013 and 2021 were accurately predicted by the model based on early beet leafhopper spring migration. Our results provide experimental and field-based support that early spring migration of the insect vector is the primary factor contributing to BCTV outbreaks. Additionally, the predictive model for spring migration time was implemented into a web-based mapping system, serving as a decision support tool for management purposes. This article describes an experimental and analytical framework of considerable relevance to region-wide forecasting and modeling of insect-vectored diseases of concern to crops, livestock, and humans.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140182873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eva Papek, Elisabeth Ritzer, Peter H. W. Biedermann, Anthony I. Cognato, Peter Baier, Gernot Hoch, Thomas Kirisits, Martin Schebeck
{"title":"The pine bark beetle Ips acuminatus: an ecological perspective on life-history traits promoting outbreaks","authors":"Eva Papek, Elisabeth Ritzer, Peter H. W. Biedermann, Anthony I. Cognato, Peter Baier, Gernot Hoch, Thomas Kirisits, Martin Schebeck","doi":"10.1007/s10340-024-01765-2","DOIUrl":"https://doi.org/10.1007/s10340-024-01765-2","url":null,"abstract":"<p>The bark beetle <i>Ips acuminatus</i> is an important pest in pine-dominated forests of Eurasia. Recently, the frequency of <i>I. acuminatus</i> outbreaks and mortality of host trees have increased, most likely as a result of climate change-related alterations in environmental conditions. Therefore, detailed information on the species’ natural history is essential to understand its potential to damage forests and to apply sustainable management measures. We provide a comprehensive overview on the life history of <i>I. acuminatus</i>, focusing on traits that might explain outbreaks and the ability to cause tree mortality. We review its importance for European forestry, outbreak behavior, host plant usage, reproductive biology, temperature-dependent development, diapause and overwintering behavior, and interactions with fungi, bacteria, nematodes and other arthropods. Interestingly, <i>I. acuminatus</i> has a strong nutritional dependency on the fungus <i>Ophiostoma macrosporum</i>, underlined by the presence of a prominent oral mycetangium, a spore-carrying organ, in females, which is not known for other <i>Ips</i> species. Moreover, <i>I. acuminatus</i> can reproduce sexually and asexually (pseudogamy). Additionally, information on the species’ evolutionary past provides valuable insights into the origin of certain traits. We present a phylogeny of the genus <i>Ips</i> and examine selected life-history traits in an evolutionary context. Together with its sister species <i>Ips chinensis, I. acuminatus</i> forms a separate clade within <i>Ips.</i> The ancestor of <i>Ips</i> bark beetles originated about 20 million years ago and was a pine-colonizing species inhabiting the Holarctic. Finally, open fields of research are identified to guide future work on this ecologically and economically important pine bark beetle.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140139523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daegan J. G. Inward, Emilio Caiti, Kerry Barnard, Séverine Hasbroucq, Katy Reed, Jean-Claude Grégoire
{"title":"Evidence of cross-channel dispersal into England of the forest pest Ips typographus","authors":"Daegan J. G. Inward, Emilio Caiti, Kerry Barnard, Séverine Hasbroucq, Katy Reed, Jean-Claude Grégoire","doi":"10.1007/s10340-024-01763-4","DOIUrl":"https://doi.org/10.1007/s10340-024-01763-4","url":null,"abstract":"<p>A breeding population of the tree-killing European spruce bark beetle <i>Ips typographus</i> was detected in England for the first time in 2018 and was initially assumed to have arrived with infested timber. To test the hypothesis that the beetles are dispersing naturally across the English channel, extensive trap networks were deployed in 2021 and 2022 to track the flight activity of the beetles from an outbreak hotspot in France and Belgium to southern England, including parallel ‘coastal’ traps on either side of the channel. Beetles were caught all along the transect, decreasing in abundance with distance from the outbreak area. Linear modelling indicates that beetles dispersed into England during 2021 and 2022, and that during a large-scale dispersal event in June 2021, beetles could have penetrated more than 160 km inland. The 2021 dispersal event initiated new incursions of the beetle in southeast England and demonstrates the extraordinary distance <i>I. typographus</i> may move under outbreak conditions. Our findings support the hypothesis of a damaging forest pest aerially dispersing across the barrier of the English channel and suggest that future incursions of this and other plant-associated pests may move via the same pathway.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140135979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}