Recent advances toward the sustainable management of invasive Xylosandrus ambrosia beetles

Journal of Pest Science, Journal Year: 2021, Volume and Issue: 94(3), P. 615 - 637

Published: May 15, 2021

Abstract We provide an overview of both traditional and innovative control tools for management three Xylosandrus ambrosia beetles (Coleoptera: Curculionidae: Scolytinae), invasive species with a history damage in forests, nurseries, orchards urban areas. compactus , X. crassiusculus germanus are native to Asia, currently established several countries around the globe. Adult females bore galleries into plant xylem inoculating mutualistic fungi that serve as food source developing progeny. Tunneling activity results chewed wood extrusion from entry holes, sap outflow, foliage wilting followed by canopy dieback, branch trunk necrosis. Maintaining health reducing physiological stress is first recommendation long-term control. Baited traps, ethanol-treated bolts, trap logs trees selected can be used monitor species. Conventional pest methods mostly ineffective against because pests’ broad host range rapid spread. Due challenges conventional control, more approaches being tested, such optimization push–pull strategy based on specific attractant repellent combinations, or use insecticide-treated netting. Biological release entomopathogenic mycoparasitic fungi, well antagonistic bacteria, has yielded promising results. However, these technologies still require validation real field conditions. Overall, we suggest efforts should primarily focus potentially combined multi-faceted approach controlling damage.

Language: Английский

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Factors affecting catches of bark beetles and woodboring beetles in traps

Journal of Pest Science, Journal Year: 2024, Volume and Issue: 97(4), P. 1767 - 1793

Published: April 29, 2024

Abstract The use of semiochemical-baited traps for detection, monitoring, and sampling bark beetles woodboring (BBWB) has rapidly increased since the early 2000s. Semiochemical-baited survey are used in generic (broad community level) specific (targeted toward a species or group) surveys to detect nonnative potentially invasive BBWB, monitor established populations damaging native species, as tool natural communities various purposes. Along with expansion use, much research on ways improve efficacy trapping detection pests well BBWB general been conducted. In this review, we provide information intrinsic extrinsic factors how they influence detecting traps. Intrinsic factors, such trap type color, other described, important habitat selection, horizontal vertical placement, disturbance. When developing surveys, consideration these should increase richness and/or abundance captured probability that may be present. During deploying more than one using an array lures, at different positions is beneficial can number captured. Specific generally rely predetermined protocols recommendations type, lure, placement.

Language: Английский

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Semiochemical-mediated host selection byXylosandrusspp. ambrosia beetles (Coleoptera: Curculionidae) attacking horticultural tree crops: a review of basic and applied science

The Canadian Entomologist, Journal Year: 2020, Volume and Issue: 153(1), P. 103 - 120

Published: Aug. 24, 2020

Abstract Exotic ambrosia beetles (Curculionidae: Scolytinae) in the tribe Xyleborini include destructive pests of trees growing horticultural cropping systems. Three species are especially problematic: Xylosandrus compactus (Eichhoff), crassiusculus (Motschulsky), and germanus (Blandford). Due to similarities their host tree interactions, this mini-review focuses on these three with goal describing host-selection behaviour, characterising associated semiochemicals, assessing how interactions relate management. All spp. attack a broad range shrubs. Physiologically stressed preferentially attacked by X. , but influence stress selection is less clear. Ethanol emitted from weakened response variety stressors, it represents an important attractant for all species. Other host-derived compounds tested inconsistent or inactive. Verbenone inhibits attraction ethanol, effect does not prevent attacks. Integrating repellents attractants into push–pull management strategy has been ineffective reducing attacks could be optimised further. Overall, maintaining vigour minimising stress-induced ethanol keys managing insects, particularly .

Language: Английский

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Xylosandrus crassiusculus (Motschulsky) on Cocoa Pods (Theobroma cacao L.): Matter of Bugs and Fungi

Insects, Journal Year: 2022, Volume and Issue: 13(9), P. 809 - 809

Published: Sept. 5, 2022

Exudation of mucilage from pinhead-sized boreholes in cocoa pods was recorded Karnataka, India, during 2021. Further investigations showed the association scolytine beetles with infested pods. The identity pest, Xylosandrus crassiusculus, confirmed through morphological characterization and sequencing mitochondrial COI gene. We studied predisposing factors for its infestation, visible concealed damaging symptoms, fungal symbionts. In addition to well-known symbiotic fungus, Ambrosiella roeperi, a new yeast, Ambrosiozyma monospora, discovered. also traced possible role mirid bug, Helopeltis theivora, host selection by X. crassiusculus. Overall results indicated that ‘mirid bug-ambrosia beetle–pathogen complex’ is responsible severe damage South India.

Language: Английский

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Investigating beetle communities in and around entry points can improve surveillance at national and international scale

NeoBiota, Journal Year: 2023, Volume and Issue: 85, P. 145 - 165

Published: June 22, 2023

Beetles are commonly moved among continents with international trade. Baited traps set up in and around entry points used to increase chances of early-detection incoming species complement visual inspections. A still underestimated benefit this surveillance approach is the high number diversity collected bycatch species. In study, we exploited a multiyear program carried out baited at five Spanish ports their surrounding natural areas investigate i) importance identifying more promptly detect nonnative belonging non-target groups; ii) patterns native richness abundance inside port vs. areas; iii) occurrence spillover events between areas, iv) whether most introduced into other countries abundant than areas. total 23,538 individuals from 206 representing 33 families were collected. The taxonomic 26 beetle testified that identification these unintentionally trapped can provide additional information on ongoing invasions. Patterns highlighted differential ability different colonize Finally, surroundings, while opposite trend occurred for have not been elsewhere. Our study use generic attractants aid species, useful risk introduction countries.

Language: Английский

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Evidence of cross-channel dispersal into England of the forest pest Ips typographus

Journal of Pest Science, Journal Year: 2024, Volume and Issue: 97(4), P. 1823 - 1837

Published: March 14, 2024

Abstract A breeding population of the tree-killing European spruce bark beetle Ips typographus was detected in England for first time 2018 and initially assumed to have arrived with infested timber. To test hypothesis that beetles are dispersing naturally across English channel, extensive trap networks were deployed 2021 2022 track flight activity from an outbreak hotspot France Belgium southern England, including parallel ‘coastal’ traps on either side channel. Beetles caught all along transect, decreasing abundance distance area. Linear modelling indicates dispersed into during 2022, a large-scale dispersal event June 2021, could penetrated more than 160 km inland. The initiated new incursions southeast demonstrates extraordinary I. may move under conditions. Our findings support damaging forest pest aerially barrier channel suggest future this other plant-associated pests via same pathway.

Language: Английский

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Role of plant essential oil nanoemulsions on host colonization by the invasive ambrosia beetle Xylosandrus compactus

Industrial Crops and Products, Journal Year: 2023, Volume and Issue: 195, P. 116437 - 116437

Published: Feb. 24, 2023

The development of effective control strategies targeting non-native ambrosia beetles (Coleoptera: Curculionidae: Scolytinae and Platypodinae) represents an emerging challenge. This is due both to their rapid spread into climatically suitable newly invaded regions rich in susceptible host plants the limited knowledge concerning sustainable management tools. In this context, use botanical insecticides, such as plant essential oils (EOs), considered a promising option Integrated Pest Management (IPM) alternative conventional insecticides for crop protection. Here, impact five EO nanoemulsions (Rosmarinus officinalis L. cultivar verbenone, Carlina acaulis L., Laurus nobilis Cupressus sempervirens Betula alba L.) on choice behavior, colonization progeny production by invasive beetle Xylosandrus compactus (Eichhoff) was evaluated under laboratory semi-field conditions. chemical composition tested EOs firstly means gas chromatography-mass spectrometry (GC-MS) analyses. Then, were prepared characterized through dynamic light scattering (DLS). Tested showed single or bimodal droplet size distributions nanometric range. Results highlighted significant repellent activity R. cv. verbenone C. (at 3% concentration). However, trend repellence against not confirmed at decreasing concentrations (i.e., 1% 0.5%). Nanoemulsions based significantly affected choices regardless concentration. Indeed, no bioassays, lower number individuals started infesting stems treated with these nanoemulsions. On other hand, effect treatment found offspring produced survived females. Overall, our findings provide new insights toward repellents X. compactus, suggesting future incorporation non-chemical strategies, 'push-pull', part IPM packages pest.

Language: Английский

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Trap Height Affects Catches of Bark and Woodboring Beetles (Coleoptera: Curculionidae, Cerambycidae) in Baited Multiple-Funnel Traps in Southeastern United States

Journal of Economic Entomology, Journal Year: 2019, Volume and Issue: unknown

Published: Sept. 13, 2019

In north-central Georgia, trap height affected catches of some species bark and woodboring beetles (Coleoptera) in traps baited with lures used surveillance programs to detect non-native forest insects. Traps were placed within the canopy understory mature oak trees (Quercus spp.) collection cups 18-23 m above ground level (AGL), 0.3-0.5 AGL, respectively. ethanol target ambrosia (Curculionidae: Scolytinae) one experiment, + syn-2,3-hexanediol racemic 3-hydroxyhexan-2-one 3-hydroxyoctan-2-one hardwood woodborers (Cerambycidae) a second α-pinene ipsenol ipsdienol pine (Curculionidae) third experiment. Canopy more effective than for detecting Cnestus mutilatus (Blandford) (Curculionidae), Neoclytus scutellaris (Olivier), Monochamus titillator (F.) (Cerambycidae). The reverse was true Xylosandrus crassiusculus (Motschulsky), Dendroctonus terebrans (Olivier) acuminatus Catches group which included Hylobius pales (Herbst), Ips grandicollis (Eichhoff) mucronatus (F.), Anelaphus pumilus (Newman) largely unaffected by height. Similar patterns noted Cleridae, Scarabaeidae, Trogossitidae, Zopheridae but not Histeridae or Tenebrionidae (Coleoptera). bee assassin Apiomerus crassipes (Hemiptera: Reduviidae) borer blend greater traps.

Language: Английский

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The Risk of Bark and Ambrosia Beetles Associated with Imported Non-Coniferous Wood and Potential Horizontal Phytosanitary Measures

Forests, Journal Year: 2020, Volume and Issue: 11(3), P. 342 - 342

Published: March 19, 2020

Many bark and ambrosia beetle species (Coleoptera: Scolytinae Platypodinae) are known to have spread worldwide in relation international trade. Concerns been expressed within the European Mediterranean Plant Protection Organization (EPPO) about recent introductions of non-indigenous these groups. Regulation non-coniferous wood trade into many EPPO member countries is currently not sufficient cover such risks. In 2018–2019, an study on risk beetles associated with imported was carried out, key characteristics contributing pest from introduced were determined using expert consensus. This paper summarizes findings study, which available full detail website. The identified biological other factors illustrated them examples 26 or groups be invasive posing a threat plant health. These representative classified three categories based damage level uncertainty. present article, factorial discriminant analyses used identify features biology caused invasiveness. Based information assembled consideration factors, it recommended that order prevent introduction new via commodities, horizontal phytosanitary measures should adopted, irrespective host origin (i.e., for all genera woody plants origins). Phytosanitary presented here various commodities.

Language: Английский

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Response of native and exotic longhorn beetles to common pheromone components provides partial support for the pheromone‐free space hypothesis

Insect Science, Journal Year: 2020, Volume and Issue: 28(3), P. 793 - 810

Published: April 15, 2020

Abstract Longhorn beetles are among the most important groups of invasive forest insects worldwide. In parallel, they represent one well‐studied insect in terms chemical ecology. beetle aggregation‐sex pheromones commonly used as trap lures for specific and generic surveillance programs at points entry may play a key role determining success or failure exotic species establishment. An might be more likely to establish novel habitat if it relies on pheromone channel that is different native active same time year day, allowing unhindered mate location (i.e., pheromone‐free space hypothesis). this study, we first tested attractiveness single components racemic 3‐hydroxyhexan‐2‐one, 3‐hydroxyoctan‐2‐one, syn ‐2,3‐hexanediol), their binary tertiary combinations, longhorn Canada Italy. Second, exploited catches determine seasonal flight activity. Third, pheromone‐baited “timer traps” daily The response combinations was mostly but combination than component allowed catch multiple simultaneously components, coupled with results activity, provided partial support hypothesis. This study aids understanding ecology confirms can invasions.

Language: Английский

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