New policy brief highlights the unintended consequences of projects that promote invasive alien woody plants

A new policy brief has been published providing recommendations to support decision making about funding for projects that aim to introduce new, or promote established alien woody plant species.
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Red and grey squirrel genomes could hold the key to the survival of reds in Britain and Ireland

Red squirrel
New hope for the preservation of red squirrels in Britain and Ireland is on the horizon, after the completion of the red and grey squirrel reference genomes by scientists at the Wellcome Sanger Institute and their collaborators. The genomes may hold clues to why grey squirrels are immune to squirrel pox, a disease that is…
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New TR4 Portal on the Invasive Species Compendium

bananas
At the end of 2019, a new species portal was added to CABI’s Invasive Species Compendium (ISC) to bring together information and data related to Fusarium oxysporum f.sp. cubense tropical race 4, more commonly known as TR4. This portal, which is Open Access and available to all, brings together data on the current distribution, the…
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Weed biological control: Challenges and opportunities

Michael Day and Arne Witt have just published ‘Weed biological control: Challenges and opportunities’ in the first edition of a new journal, Journal of Asian-Pacific Weed Science Society. Their paper traces the history of weed biological control and points to the many successes.
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Eucalyptus – the ‘thirsty’ trees threatening to ‘drink’ South Africa dry

Eucalyptus species are widely grown and utilized throughout much of the world, Dr Arne Witt reports. They are a valuable source of timber, fuelwood, paper, nectar, etc. and as such often grown in woodlots and plantations. However, many of these introduced species have escaped cultivation and become invasive.
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Redistribution of Zygogramma bicolorata to control Parthenium in Faisalabad

Parthenium weed (Parthenium hysterophorus) is a serious problem in wastelands throughout Pakistan and so far, no single method alone has proven effective in its management. Among the various causes of its rapid spread in Pakistan, lack of natural enemies or presence of a natural enemy in a specific part of the country is perhaps the…
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Enabling access to FAIR and open agricultural data: CABI’s Action on Invasives takes the lead

Two CABI scientists inspect tomato plants
For many centuries, data has been used in agriculture to help farmers, researchers and policymakers make more informed decisions. For instance, farmers use weather and soil data to decide how and when to fertilise, plant or harvest; and policymakers use data about the impact of pest and disease management interventions during evidence-based decision making.
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New study: current resource use in areas of increasing prosopis cover is unsustainable

By Dr Urs Schaffner, Head Ecosystems Management In a newly-published paper in the journal Ecosystems Services: ‘The impact of invasive species on social-ecological systems: Relating supply and use of selected provisioning ecosystem services’, CABI scientists joined an international team of researchers who, in respect of the invasive weed prosopis, conducted the first study that integrates…
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Invasives Most Read 2019

As 2019 draws to a close, we have crunched the numbers and pulled together the year’s most read articles. Plus some firm favourites. Fall armyworm continues to be a popular topic for our readers and this year, blogs on biocontrol efforts to control the invasive caterpillar make the top 20. CABI’s Pest Risk Analysis tool…
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Invading Europe’s waterways: the crayfish occupation

An (invasive) signal crayfish, Pacifastacus leniusculus, crossing a road in Oxford.
Crayfish are freshwater crustaceans that can be found in a range of freshwater habitats, from fast-flowing rivers to swamps and ditches. Even in places where they are abundant, they are secretive and not commonly seen, so the ongoing widespread invasion by non-native crayfish species is unknown to many.
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