CABI scientist helps identify alien species that present greatest threat to European biodiversity

Fox squirrel
Fox squirrels are able to establish viable populations from a very small number of individuals

CABI scientist Dr Marc Kenis has joined an international team of researchers who have identified 66 alien species – not yet established in the European Union – that pose the greatest threat to European biodiversity and ecosystems as outlined in a new paper published today in the journal Global Change Biology.

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New upgraded invasive species Horizon Scanning Tool launched

Nezara viridula (green stink bug); mated pair, on pearl millet (

Last week CABI launched the full version of its invasive species Horizon Scanning Tool, a free and open access online resource available via the Invasive Species Compendium that helps users make decisions about invasive species and identify possible risks in countries, provinces and states.

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Samurai wasp found in Europe – the end of the stink bug invasion?

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The Asian samurai wasp Trissolcus japonicus; photo: CABI

CABI scientists have made the first discovery of the Asian samurai wasp Trissolcus japonicus – a natural enemy that kills the eggs of the the invasive fruit and nut pest brown marmorated stink bug (Halyomorpha halys) – in Europe.

Judith Stahl and Dr Tim Haye led an international team of researchers, including those from the University of Turin and the USDA Agricultural Research Service, who used DNA analysis to confirm the wasp – which is native to China, Japan and Korea – was found in Switzerland in 2017.

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CABI study identifies safer options for fall armyworm control in Africa

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CABI’s experts in the biological control of agricultural pests and diseases have conducted the first major study of potential biological controls that could be used in the fight against the devastating fall armyworm which recently arrived in Africa.

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Tiny mite could prove a ‘mighty’ weapon in the fight against one of the UK’s most invasive weeds

CABI scientists are stepping up the fight against one of the UK’s most invasive non-native aquatic weeds.

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Crassula is an aquatic plant that can take on various growth forms; able to act as a submerged, emergent, or semi-terrestrial species.

Approval has been given for the release of a novel biological control agent – the mite, Aculuscrassulae – to assess its ability in the real-world environment to suppress Australian swamp stonecrop (Crassula helmsii), also known as New Zealand pigmyweed. This follows carefully controlled laboratory testing to ensure the safe, controlled release of the mite in the UK.

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New Fall Armyworm Portal features as part of CABI’s upgraded Invasive Species Compendium

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A new Fall Armyworm Portal, which includes the very latest reports and research regarding the devastating crop pest, now features as part of a major upgrade of CABI’s Invasive Species Compendium (ISC) launched today.

The portal, created as part of the CABI-led Action on Invasives programme – funded by the UK’s Department for International Development (DFID) and the Netherland’s Directorate-General for International Cooperation (DGIS) – is now an integral part of the ISC, which receives over 1.5 million visits a year.

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Scientists debate how best to tackle invasive plants across Europe

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Some of the world’s leading scientists in the field of alien invasive plants are to debate how best to tackle the scourge of a range of alien invasive plants – some of whose pollen can cause severe irritation in humans and threaten native ecosystems.

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