Fungi associated with galleries of the emerald ash borer

Fungal Biology, Journal Year: 2021, Volume and Issue: 125(7), P. 551 - 559

Published: Feb. 25, 2021

The emerald ash borer (EAB) is an exotic forest pest that has killed millions of trees in the United States and Canada, resulting ecological disaster billions dollars economic losses urban landscape trees. beetle was first detected Michigan 2002 spread through much Eastern Midwestern U.S., reaching Minnesota 2009. Since then, it across state poses a great risk to more than 1 billion Minnesota. larval stage EAB creates wounds on as they feed inner bark, causing disruption water sap flow results tree death. fungal community associated with galleries poorly understood role these fungi may play death not known. This study describes isolated from sampled throughout main geographic areas where affected by EAB. Fungal cultures were identified extracting genomic DNA sequencing ITS region rDNA. Results 1126 isolates reveal diverse assemblage three functional guilds comprised canker pathogens, wood decay, entomopathogenic fungi. most common canker-associated genera Cytospora followed Phaeoacremonium, Paraconiothyrium, Coniothyrium, Nectria, Diplodia, Botryosphaeria. Fungi Basidiomycota nearly all decay many species pioneer colonizing including Sistotrema, Irpex, Peniophora, Phlebia Ganoderma. Some seriously affect trees, having potential cause rapid hazardous situations. Several for biological control also galleries. Purpureocillium commonly genus, Beauveria, Clonostachys, Lecanicillium, Akanthomyces, Cordyceps, Microcera, Tolypocladium, Pochonia. identify important are occupying new niche include accelerate decline health, increase hazard situations, or provide options this destructive invasive insect.

Language: Английский

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Captures of Emerald Ash Borer (Agrilus planipennis) Adults in Post-Invasion White Ash Sites with Varying Amounts of Live Phloem

Forests, Journal Year: 2021, Volume and Issue: 12(3), P. 262 - 262

Published: Feb. 25, 2021

Emerald ash borer (EAB), (Agrilus planipennis Fairmaire), first identified in 2002 southeast Michigan, has caused catastrophic (Fraxinus spp.) mortality forests within the core of invasion and spread to 35 states five Canadian provinces. Little is known about persistence densities EAB populations post-invasion sites after most trees have died. We monitored from 2014 2016 using double decker (DD) traps set midst white (F. americana) 30 south-central Michigan. Two DD were deployed at each site. One trap had a dark green upper prism light purple lower prism, both baited with cis-3-hexenol lures. The other two prisms on Manuka oil prism. In 2016, size condition recorded area live phloem was estimated an 18-m-radius plot centered around traps. Area per site ranged approximately 24 421 m2 411 2016. Canopy generally improved; 65% 89% healthy canopies (<20% dieback) respectively. Traps 28, 29 captured total 580, 585, 932 adults 2014–2016, explained relatively little variation captures all three years. Low catches, along stable canopy conditions continued abundance ash, indicate that remain below carrying capacity sites, availability not limiting factor for abundance. Further monitoring track dynamics tree needed determine long-term outlook these sites.

Language: Английский

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Application of somatic embryogenesis for development of emerald ash borer-resistant white ash and green ash varietals

New Forests, Journal Year: 2022, Volume and Issue: 54(4), P. 697 - 720

Published: March 19, 2022

Language: Английский

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How does the Emerald Ash Borer (Agrilus planipennis) affect ecosystem services and biodiversity components in invaded areas?

EPPO Bulletin, Journal Year: 2021, Volume and Issue: 51(1), P. 216 - 228

Published: March 11, 2021

Environmental risk assessment (ERA) is an important component of analysis for plant pests and invasive alien species (IAS), a standardized consistent methodology has recently been developed evaluating their impact on ecosystem services biodiversity. This paper presents the application this innovative ERA to Agrilus planipennis , emerald ash borer, which causes significant mortality Fraxinus (ash) in forests urban areas North America (here: USA Canada, excluding Mexico) Russia. The follows retrospective summarizes information observations invaded Uncertainty distributions were elicited define quantitatively general pattern environmental terms reduction provisioning, supporting regulating services, biodiversity components. impacts A. are time‐ context‐dependent, therefore two time horizons 5 20 years after introduction ecosystems (urban forest) considered. case study shows that quantitative IAS both possible helpful decision‐makers managers who have balance control costs against potential IAS.

Language: Английский

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Introduction and establishment of biological control agents for control of emerald ash borer (Agrilus planipennis) in Canada

The Canadian Entomologist, Journal Year: 2022, Volume and Issue: 154(1)

Published: Jan. 1, 2022

Abstract The emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), is a serious pest of ( Fraxinus spp.) (Oleaceae) in North America. Control borer difficult natural forest settings; therefore, classical biological control programme the most feasible management option for this invasive, nonnative insect. Here, we report first Canadian release and establishment parasitoids Tetrastichus planipennisi Yang (Hymeoptera: Eulophinae), Oobius agrili Zhang Huang (Hymenoptera: Encyrtidae), Spathius galinae Belokobylskij Strazanac Braconidae) forests Ontario, Quebec, New Brunswick, Canada borer. Releases T. were made from 2013 to 2019, O. 2015 S. 2017 2019. Trees sites destructively sampled rear out adult borers 1–3 years after parasitoid release. Recoveries at 81% (13 16) 1–2 release, agili recovered 29% (4 14) was not recovered. These data provide important information development deployment successful Canada.

Language: Английский

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