The cantons accuse the federal authorities of making little progress in introducing measures against the grass despite research programmes launched eight years ago.
The Federal Agriculture Office said a special information platform has been launched to help coordinate efforts by the national and cantonal experts as well as farmers organisations.
It asked cantons to provide detailed maps to identify areas particularly affected by the nutsedge pant to plan concrete technical steps.
However, the federal authorities have ruled out urgent measures but they insisted on improved coordination, according to report by the BauernZeitung weekly.
With its dense and layered root system, yellow nutsedge can reduce the vigour of neighbouring plants, according to experts.
It is cultivated in Spain for its earth almonds but considered a weed in most other countries.
First large-scale alpine solar plant approved in Switzerland
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The approval was met with satisfaction by the project's organisers, but it also brings with it a certain amount of pressure.
Medieval squirrels may have ‘helped spread leprosy’
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An examination of squirrel remains in the United Kingdom has opened up interesting questions and possibilities in terms of the history of the disease.
Swiss money laundering office registers record number of reports
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The Money Laundering Reporting Office Switzerland (MROS) registered a record number of reports of suspicious activity last year.
Two teens accused of planning terror attack released from custody
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The Schaffhausen judiciary has released the two teenagers from custody who allegedly planned bomb attacks in Switzerland.
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Our environmental crisis is a social crisis
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Although we have known the causes of our environmental problems and possible solutions for decades, not much has changed. Christoph Küffer asks why.
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Furthermore, the salt used to de-ice roads in winter has had a severe impact on habitat, driving out such common wayside plants as daisies and dandelions, and enabling salt-tolerant plants to take root. As a result, some plants which used to be found only on the coast are moving inland. Botanist Raymond Delarze, who runs…
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If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at english@swissinfo.ch.