Parthenium awareness campaign reaches urban population in Islamabad

Parthenium in Pakistan

In Pakistan, the highly invasive weed Parthenium hysterophorus is not only a problem for rural areas, in fact it is of equal concern for urban residents as well. Known locally as ‘Gajar Booti’, Parthenium is a major pest of both cropped and non-cropped areas of Pakistan, causing severe economic, environmental, and health-related problems.

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In the fight against Parthenium, make sure to “know your enemy”

Latest book in the CABI Invasive Series: Parthenium Weed

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Parthenium weed (Parthenium hysterophorus) is considered one of the worst weeds in the world. It has invaded and is widespread in about 48 countries in Africa, Asia and the South Pacific, and has the potential to spread to new countries in Africa, Asia and parts of Europe. In the countries it has invaded, it has devastating effects on the livelihoods of millions of people causing significant economic, health and environmental loss. In order to effectively manage parthenium weed and mitigate the impacts it has, one needs a good understanding of the biology and ecology of the weed as well as effective management strategies already utilised. As the editors of CABI’s new book on Parthenium so candidly put, ‘know your enemy’ is the first step in effective management.

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World heritage site saved from invasive ant species

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The African big-headed ant. Photo: Eli M. Sarnat from AntWeb

After years of effort, the invasive African big-headed ant (Pheidole megacephala) has successfully been eradicated from Lord Howe Island, an island off the coast of Australia, helping to protect this World Heritage site and its unique diversity of plants and animals. Continue reading

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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E-conference on responding to fall armyworm in Africa

Farmers in Ghana tackling fall armyworm

Last week, the UN Sustainable Development Solutions Network’s Thematic Network on Sustainable Agriculture & Food Systems hosted an e-conference on the fall armyworm outbreak in Africa which brought together experts, stakeholders and other interested parties to discuss the challenges posed by fall armyworm and to evaluate the possible solutions.

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Fall armyworm in Africa: communicating out of a crisis

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Take a quick look at the map of the fall armyworm invasion. It gives you a good feel for the number of smallholder farmers in sub-Saharan Africa directly affected by a small caterpillar eating their staple crop – maize – at a rapid rate. As a communication professional working in agriculture, it has been the first time I have found it so easy to explain my work – “ah yes, you are working on this ‘worm’… it is causing so many problems for farmers here” is the response I now get.

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