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.
Swiss climate activists block vehicles near Gotthard tunnel
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Around ten climate activists briefly blocked the A2 motorway near the northern entrance of the Gotthard tunnel on Thursday.
Watches belonging to Michael Schumacher up for auction
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Schumacher's family is auctioning off eight rare watches from his collection in Geneva. The Christie's auction will take place on Monday.
Joya Marleen and Baschi named best solo acts at Swiss Music Awards
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St. Gallen singer Joya Marleen and Baschi from Basel were named artists of the year at the Swiss Music Awards 2024 on Wednesday night.
Swiss authorities announce cost-cutting in asylum sector
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The government notably wants to improve integration into the labour force, particularly for people with protection status S.
Various leaders confirm participation at Ukraine peace conference
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The presidents of Poland, Finland, and Latvia and the prime ministers of Spain and Belgium will be at the Swiss-hosted talks in mid-June.
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In the winter season up to April 2024, railway and cable car operators ferried 3% more visitors compared to the previous winter, and 5% more than the five-year average.
Rhine flooding: Swiss to invest CHF1 billion with Austria
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As part of an international agreement with Austria, the Swiss government wants to pump CHF1 billion ($1.1 billion) into flood protection measures along the Rhine over the next three decades.
Swiss government proposes CHF10 million UNRWA donation
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After months of debate, Switzerland plans to give CHF10 million ($11 million) to the UN agency this year, rather than the CHF20 million initially foreseen.
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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.