Progress and Challenges of Protecting North American Ash Trees from the Emerald Ash Borer Using Biological Control

Forests, Journal Year: 2018, Volume and Issue: 9(3), P. 142 - 142

Published: March 15, 2018

After emerald ash borer (EAB), Agrilus planipennis Fairmaire, was discovered in the United States, a classical biological control program initiated against this destructive pest of trees (Fraxinus spp.). This biocontrol began 2007 after federal regulatory agencies and state Michigan approved release three EAB parasitoid species from China: Tetrastichus planipennisi Yang (Eulophidae), Spathius agrili (Braconidae), Oobius Zhang Huang (Encyrtidae). A fourth parasitoid, galinae Belokobylskij (Braconidae) Russia, for 2015. We review rationale ecological premises program, then report on progress North American recovery southern Michigan, where parasitoids were first released. also identify challenges to conserving native Fraxinus using aftermath invasion, provide suggestions improvements as spreads throughout America. conclude that more work is needed to: (1) evaluate establishment impact agents different climate zones; (2) determine combined effect host plant resistance or tolerance regeneration species; (3) expand foreign exploration natural enemies Asia.

Language: Английский

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Ecological Impacts of Emerald Ash Borer in Forests at the Epicenter of the Invasion in North America

Forests, Journal Year: 2018, Volume and Issue: 9(5), P. 250 - 250

Published: May 5, 2018

We review research on ecological impacts of emerald ash borer (EAB)-induced mortality in the Upper Huron River watershed southeast Michigan near epicenter invasion North America, where forests have been impacted longer than any others America. By 2009, green, white, and black exceeded 99%, seed production regeneration had ceased. This left an orphaned cohort saplings too small to be infested, fate which may depend ability natural enemies regulate EAB populations at low densities. There was no relationship between patterns density, importance, or community composition. Most trees died over a five-year period, resulting relatively simultaneous, widespread gap formation. Disturbance from formation accumulation coarse woody debris caused by cascading forest communities, including successional trajectories, growth non-native invasive plants, soil dwelling herbivorous arthropod bird foraging behavior, abundance, These other ecosystems are likely experienced elsewhere as continues spread.

Language: Английский

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Ongoing regeneration of ash and co-occurring species 20 years following invasion by emerald ash borer

Forest Ecology and Management, Journal Year: 2025, Volume and Issue: 580, P. 122546 - 122546

Published: Feb. 2, 2025

Language: Английский

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Emerald ash borer biocontrol in ash saplings: The potential for early stage recovery of North American ash trees

Forest Ecology and Management, Journal Year: 2017, Volume and Issue: 394, P. 64 - 72

Published: April 8, 2017

Language: Английский

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Legacy effects of emerald ash borer on riparian forest vegetation and structure

Forest Ecology and Management, Journal Year: 2019, Volume and Issue: 457, P. 117684 - 117684

Published: Nov. 26, 2019

Language: Английский

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Evaluating Adaptive Management Options for Black Ash Forests in the Face of Emerald Ash Borer Invasion

Forests, Journal Year: 2018, Volume and Issue: 9(6), P. 348 - 348

Published: June 13, 2018

The arrival and spread of emerald ash borer (EAB) across the western Great Lakes region has shifted considerable focus towards developing silvicultural strategies that minimize impacts this invasive insect on structure functioning black (Fraxinus nigra) wetlands. Early experience with clearcutting in these forests highlighted risks losing to EAB from ecosystems, stands often retrogressing marsh-like conditions limited tree cover. Given experiences an urgency for increasing resilience EAB, research efforts began north-central Minnesota 2009 followed by additional studies trials Michigan Wisconsin evaluate potential using regeneration harvests conjunction planting replacement species sustain forested wetland habitats after infestations. Along more formal experiments, a number field demonstrations have been employed managers determine effective ways reducing vulnerability forest types EAB. This paper reviews results recent managing describes insights gained ecological unique, foundational role played ash.

Language: Английский

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The Precarious State of a Cultural Keystone Species: Tribal and Biological Assessments of the Role and Future of Black Ash

Journal of Forestry, Journal Year: 2017, Volume and Issue: 115(5), P. 435 - 446

Published: Feb. 10, 2017

Black ash (Fraxinus nigra Marsh.) plays a central role in several Native American teachings (including Wabanaki creation story) and has long been used for basketry, yet relatively little is known about the species' ecology. The recent ongoing invasion of emerald borer (Agrilus planipennis Fairmaire), an invasive beetle killing millions trees eastern North America, threatens future black centuries-old basketry tradition. In recognition precarious state this cultural keystone species, basketmakers, basket-tree harvesters, researchers assembled to discuss traditional ecological knowledge research advancements related ash. Here we provide overview basket-quality ash, synthesize current biology ecology, report findings from successful tribal scientific collaboration. Management recommendations were developed needs outlined hopes sustaining ecologically important tree species maintaining tradition that spiritual significance. Policy Implications Biological invasions nonnative organisms forested ecosystems can have profound economic impacts. United States Canada currently threatened by (EAB). A better understanding ecology light threat will significant implications its management, survival, continued use as source heritage basketmaking traditions. To address gaps influence are encouraged concentrate efforts on studying following: stand dynamics across range hydrologic regimes; genetics ash; EAB population infested stands effect regeneration Researchers also collaborate with partners basketmakers during these studies. Diverse collaboration toward common cause result synergy leads effective informed management policy decisionmaking. effect, resource managers policymakers cooperate one another locate, maintain, manage existing populations, while simultaneously considering accessibility high-quality traditions, before America decimated invasion.

Language: Английский

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Riparian forest conditions along three northern Michigan rivers following Emerald Ash Borer invasion

Canadian Journal of Forest Research, Journal Year: 2020, Volume and Issue: 50(8), P. 800 - 810

Published: April 14, 2020

Emerald Ash Borer (EAB; Agrilus planipennis Fairmaire (Coleoptera, Buprestidae)) has killed millions of ash (Fraxinus spp.) trees since its 2002 detection in southern Michigan and Ontario. Effects EAB riparian forests, where species are often abundant, could influence terrestrial aquatic conditions but largely unknown. We surveyed vegetation coarse woody material within between three gaps forests along stretches rivers northwestern Michigan. Gaps were originally dominated by Fraxinus pennsylvanica Marsh. nigra Marsh., which comprised 46%–71% total basal area, while <10% area gaps. More than 95% overstory EAB. saplings abundant F. regeneration was minimal. Few tree seedlings occurred gaps, dense sedge mats. Aerial imagery showed the invasion resulted 3.6–7.1 canopy gaps·km −1 dead account for 13%–21% 100 m banks all rivers. Long-term monitoring will be useful to evaluate persistence ash, particularly nigra, stability buffers, potential indirect effects on adjacent systems.

Language: Английский

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The effect of emerald ash borer-caused tree mortality on the invasive shrub Amur honeysuckle and their combined effects on tree and shrub seedlings

Biological Invasions, Journal Year: 2017, Volume and Issue: 19(10), P. 2813 - 2836

Published: July 1, 2017

Language: Английский

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Vegetation responses to simulated emerald ash borer infestation inFraxinus nigradominated wetlands of Upper Michigan, USA

Canadian Journal of Forest Research, Journal Year: 2016, Volume and Issue: 47(3), P. 319 - 330

Published: Nov. 17, 2016

The invasive emerald ash borer (EAB) (Agrilus planipennis Fairmaire (Coleoptera: Buprestidae)) is a significant threat to biodiversity and ecosystem processes in North American forests. Of particular concern the fate of Fraxinus nigra (black ash), which frequently dominant canopy species across much its range. To investigate potential vegetation response loss this foundation species, EAB-induced mortality was simulated F. dominated wetlands Upper Michigan, USA. No growth residual overstory occurred over course three growing seasons, may part be attributed negative effects post-treatment conditions, including prolonged inundation. A increase non-Fraxinus sapling rate observed, however. Mortality did not impact overall stem recruitment or regeneration, although composition shifting towards Acer rubrum (red maple) Betula alleghaniensis (yellow birch) seedling layer. herbaceous community exhibited greatest response, nearly doubling areal cover by end study. Importantly, expanded associated with decreased establishment new woody seedlings, suggesting that increased competition between these functional groups has yet impacted for future recovery

Language: Английский

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