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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Ambrosia Beetle Occurrence and Phenology of Xylosandrus spp. (Coleoptera: Curculionidae: Scolytinae) in Ornamental Nurseries, Tree Fruit, and Pecan Orchards in Georgia

Environmental Entomology, Journal Year: 2022, Volume and Issue: 51(5), P. 998 - 1009

Published: Aug. 24, 2022

Abstract Ambrosia beetles (Coleoptera: Curculionidae: Scolytinae, Platypodinae) in the genus Xylosandrus are problematic ornamental nurseries and emerging as serious pests orchard crops. An updated survey of ambrosia focusing on these damaging species, their corresponding phenology was conducted Georgia to aid refining management practices for beetles. were monitored across nine sites 2019 seven 2020 at nurseries, tree fruit, pecan orchards Georgia. At each site, six ethanol-baited bottle traps deployed; with three along edge a wood-line placed 30 m from orchards. Traps deployed mid-January through July or August depending site year. All captured counted identified. Captures X. crassiusculus, germanus, compactus, analyzed further investigate spatial distribution seasonal flight activity. high population sites, more adjacent wood lines than nursery interior. most activity began February March continued until termination study August. sustained activities multiple peaks observed March, April, May, average weekly temperatures reaching ≥15.5°C. These results have important implications temporally spatially precise agricultural production systems southeastern US.

Language: Английский

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Anisandrus maiche Kurentzov (Curculionidae: Scolytinae), an Asian species recently introduced and now widely established in Northern Italy

BioInvasions Records, Journal Year: 2022, Volume and Issue: 11(3), P. 652 - 658

Published: Jan. 1, 2022

The present contribution reports the current distribution of Asian scolytine beetle Anisandrus maiche Kurentzov (Curculionidae: Scolytinae, Xyleborini) in Italy.Previously, entire European Union, this species was known only from a single specimen collected Treviso province Northeast Italy 2021.The data presented here considerably increase distributional range A. Italy, and clearly show that ambrosia is established widespread at least two northern Italian regions, namely Lombardy Veneto.

Language: Английский

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Native European ants can discourage host colonization and reduce reproductive success of the invasive ambrosia beetle Xylosandrus compactus

Biological Control, Journal Year: 2022, Volume and Issue: 174, P. 105032 - 105032

Published: Aug. 24, 2022

Language: Английский

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Ambrosia Beetles

Springer eBooks, Journal Year: 2023, Volume and Issue: unknown, P. 339 - 360

Published: Jan. 1, 2023

Language: Английский

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Native genetic structure of black bean bug Brachyplatys subaeneus: Implications for pest management

Pest Management Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

Abstract BACKGROUND The black bean bug Brachyplatys subaeneus is a crucial legume crop pest native to Asia. It has been introduced the Americas and rapidly in tropical subtropical regions, where it poses serious threat local crops. However, population structure invasive sources of this have never studied, hindering effective monitoring management. Here, we investigated genetic populations based on nuclear SNP data relationship between Panama samples COI 16S rRNA sequences. In addition, constructed ecological niche models predict its potential invasion areas. RESULTS We found that B. comprised three geographic lineages (NO, PH SO) within range, with strong differentiation these lineages. Genetic relationships mitochondrial DNA indicated used study were derived from NO lineage. Ecological modelling shows wide range suitable habitats northern central regions South America, suggesting expand further south America. CONCLUSION This revealed inferred possible geographical origin populations, areas for bug. Our findings could provide new insights into management efforts pest. © 2025 Society Chemical Industry.

Language: Английский

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Population structure of the invasive ambrosia beetle, Euwallacea fornicatus, indicates multiple introductions into South Africa

Biological Invasions, Journal Year: 2022, Volume and Issue: 24(8), P. 2301 - 2312

Published: June 17, 2022

Language: Английский

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Lethal and sublethal effects of synthetic and bioinsecticides toward the invasive ambrosia beetle Xylosandrus compactus

Pest Management Science, Journal Year: 2023, Volume and Issue: 79(5), P. 1840 - 1850

Published: Jan. 19, 2023

Exotic ambrosia beetles are emerging widespread pests of several wild and managed trees shrubs. Xylosandrus compactus (Eichhoff) is one the most invasive species causing damage to a broad range host plants. Little information available on its control, including impact insecticides. Bioassays were conducted evaluate potential four bioinsecticides seven synthetic insecticides in controlling X. compactus. Beetle mortality sublethal effects tunneling, cultivation mutualist fungus reproduction assessed.Concentration-mortality curves determined for all tested Lambda-cyhalothrin was toxic insecticide, showing lowest estimated 90% 50% lethal concentrations (LC90 LC50 ), followed by deltamethrin thiamethoxam. Acetamiprid caused highest levels brood size reduction under extended laboratory conditions. Moreover, acetamiprid, thiamethoxam lambda-cyhalothrin greatest and, together with deltamethrin, strongly affected progeny occurrence inside infested galleries beetle size. Among bioinsecticides, pyrethrins significantly survival conditions, but not bioassays. Some had significant only when exposed fresher residues, highlighting differences toxicity persistence.This study provides first baseline data different modes action origin toward compactus, evidence that can cause multiple this pest. These findings help building suitable integrated pest management packages against © 2023 The Authors. Pest Management Science published John Wiley & Sons Ltd behalf Society Chemical Industry.

Language: Английский

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The worldwide invasion history of a pest ambrosia beetle inferred using population genomics

Molecular Ecology, Journal Year: 2023, Volume and Issue: 32(15), P. 4381 - 4400

Published: May 21, 2023

Abstract Xylosandrus crassiusculus , a fungus‐farming wood borer native to Southeastern Asia, is the most rapidly spreading invasive ambrosia species worldwide. Previous studies focusing on its genetic structure suggested existence of cryptic variation in this species. Yet, these used different markers, focused geographical areas and did not include Europe. Our first goal was determine worldwide based both mitochondrial genomic markers. second study X. ' invasion history global level identify origins We COI RAD sequencing design characterize 188 206 specimens worldwide, building comprehensive data set for any beetle date. The results were largely consistent between Two differentiated clusters invasive, albeit regions world. markers inconsistent only few found exclusively Japan. Mainland USA could have acted as source further expansion Canada Argentina through stepping stone bridgehead events. showed that Europe colonized by Cluster II complex including several arrivals from multiple area, possibly United States. also Spain directly Italy intracontinental dispersion. It unclear whether mutually exclusive allopatric distribution two due neutral effects or ecological requirements.

Language: Английский

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Symbiotic Fungi Associated With Xyleborine Ambrosia Beetles (Coleoptera: Curculionidae: Scolytinae) and the Imperative of Global Collaboration

Annals of the Entomological Society of America, Journal Year: 2022, Volume and Issue: 116(1), P. 51 - 71

Published: Dec. 10, 2022

Abstract Ambrosia beetles from the tribe Xyleborini are part of nearly all forest ecosystems. Because their small size, haplodiploid mating structure, and protected lives inside sapwood woody plants, they have a unique ability to expand into new regions via inadvertent human transport. A number invasive xyleborines cause significant damage forests, lumber concerns, agricultural systems. Most ambrosia pests or kill trees by accumulation beetle attacks, one is known tree death through introduction pathogenic fungus susceptible Lauraceae trees. The relationships between fungi vectors range mutualistic symbiosis facultative association, but most remain unstudied. Unresolved taxonomies, convergent morphologies, difficulty sampling over entire global ranges make comprehensive surveys difficult achieve. Europe North America moderately well documented, however, we yet sufficiently document those Africa, Asia, Australia, South America. Worldwide cooperation improve standardize scientific study symbioses needed better understand these impactful organisms.

Language: Английский

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