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Forests & Invasive Pests, Plants, & Diseases

CBD -1 week ago

Researchers map ferocious speed and likely cause of woody weed spread across Ethiopia

CABI scientists have helped map the ferocious speed and probable cause of a devastating spread of the invasive alien tree Prosopis juliflora (Swartz DC) across an area equivalent to half of neighbouring Djibouti in the Afar Region of north eastern Ethiopia....

Mongabay -2 weeks ago

China’s Belt and Road Initiative could increase alien species invasion

China’s ambitious, multi-trillion-dollar Belt and Road Initiative could introduce alien invasive species into several countries, threatening their native biodiversity, warns a new study. Announced by Chinese President Xi Jinping in 2013, the Belt and Road Initiative (BRI), also known as “One Belt One Road” and “21st-century Maritime Silk Road,” proposes to connect China to countries [...

Mongabay -2 weeks ago

Tech prize encourages solutions to threats from invasive species

A new competition seeks ideas for tech solutions to a broad range of challenges facing conservation. The second round of the Con X Tech Prize encourages anyone to submit an idea for a new tool that could help resource managers, consumers, and decision-makers understand and address a conservation problem. Submissions are due March 13, 2019. […]...

Elsevier -2 weeks ago

Pine defenses against the pitch canker disease are modulated by a native insect newly associated with the invasive fungus

Publication date: 1 April 2019Source: Forest Ecology and Management, Volume 437Author(s): María J. Lombardero, Alejandro Solla, Matthew P. Ayres...

Elsevier -2 weeks ago

Effects of management on ambrosia beetles and their antagonists in European beech forests

Publication date: 1 April 2019Source: Forest Ecology and Management, Volume 437Author(s): Martin M. Gossner, Konstantin Falck, Wolfgang W. WeisserAbstractLand-use intensification has been shown to negatively affect biodiversity and ecosystem functioning. Because higher trophic levels are expected to suffer most strongly from intensification, negative consequences for ecosystem services, such as bi...

USFS -2 weeks ago

Hemlock Woolly Adelgid (Hemiptera: Adelgidae): A Non-Native Pest of Hemlocks in Eastern North America

Hemlock woolly adelgid, Adelges tsugae Annand, is an invasive insect species in eastern North America that was accidentally introduced from southern Japan. It is the single most important pest of hemlocks in eastern North America and has a severe impact on the two susceptible species: eastern hemlock, Tsuga canadensis (L.) Carriere (Pinales: Pinaceae) and Carolina hemlock, Tsuga caroliniana Engelm...

USFS -2 weeks ago

Landscape variables influence Phytophthora cinnamomi distribution within a forested Kentucky watershed

<p>Invasive pests and pathogens have contributed to widescale forest change around the world, but especially in the eastern US. Phytophthora cinnamomi, one such introduced pathogen, causes root rot in American chestnut (Castanea dentata) and shortleaf pine (Pinus echinata), among other eastern forest species of interest, and has inhibited chestnut restoration efforts in some cases. Tradition...

USFS -2 weeks ago

Asian needle ant ( Brachyponera chinensis ) and woodland ant responses to repeated applications of fuel reduction methods

Ants (Formicidae: Hymenoptera) are important components of forest ecosystems and can be affected by fuel reduction forest management practices. We assessed the impact of repeated applications of fuel reduction treatments on abundance and diversity of ants within upland mixed-hardwood forests in the Southern Appalachian Mountains in North Carolina, USA. We established three replicate blocks (~56 ha...

USFS -2 weeks ago

Barriers to natural regeneration in temperate forests across the USA

For millennia, natural disturbance regimes, including anthropogenic fire and hunting practices, have led to forest regeneration patterns that created a diversity of forest lands across the USA. But dramatic changes in climates, invasive species, and human population, and land use have created novel disturbance regimes that are causing challenges to securing desired natural regeneration. Climate is...