Announcing the International Ragweed Day - June 27, 2015

Based on the proposition of allergologist Prof. Dr. Kristof Nekam and Dr. Tamas Komives the General Assembly of IRS (held in Ascona, Switzerland on October 6, 2011) proclaimed the first Saturday of the summer The International Ragweed Day (IRD) to increase understanding and awareness of the problem this invasive weed causes all over the world. The day was chosen because it is early in the growing season of the plant thereby gives enough time for preparations and actions.

We are inviting our members to take part in the organizing work.

Ecology, biology, health problem and management of Ambrosia artemisiifolia

The French Observatory of ragweeds has produced a video on the issue of Ambrosia artemisiifolia for the general public. This movie shows many aspects of the ragweed problem, from biology to policy!

SMARTER Ophraella recognition card

The SMARTER Ophraella recognition card has been produced in English and translated to several languages. It is available for download in PDF format on this webpage.

Atopica scientists announce (click!) "Pollen is in the air: invasive plants and allergy in our changing environment"

The two-day conference of the EU funded project Atopica will take place in Brussels on March 5-6th, 2015.

The conference is about the combined impact of changes in climate, land use and air pollution on the highly invasive weed Ambrosia artemisiifolia (common ragweed) and its consequences on health.

It will take place at the Committee of the Regions, with the Atopica consortium reporting to journalists, policy makers, members of parliament and interested citizens. The conference will be a two-day event featuring talks by Atopica members, invited speakers and will include workshops, posters and round table sessions. Registration is now open on or on Registration and attendance for the conference are free! For updated information please visit the conference website.

General Assembly 2014 (the Minutes are readable here)

Congratulations for the Society's new leaders!

President: Dr. Maira Bonini, Italy

Vice President: Dr. Uwe Starfinger, Germany

Secretary General: Dr. Michel Thibaudon, France

Treasurer: Marie-Agnès Chapgier-Laboissiere

Further members of the Committee: Dr. T. Komives, Dr. R. Albertini, P. Comptois, L. Makra, H. Muller-Scharer

2014 International Ragweed Day

Please read information on the actions in Croatia 1, Italy 1, 2, 3 4, and 5, and France 1, 2, 3, and 4.

Welcome to our organization

The Society has been created by researchers studying the common ragweed plant.

The main cause of allergy and pollen asthma in North America and Central Europe is pollen from ragweed (Ambrosia) a widespread genus in the Asteraceae. In Europe short or common ragweed (A. artemisiifolia) is prevalent.

This situation requires a tight monitoring of he plant and the implement of strong control strategy involving not only farmers but also the staff managing natural areas, road sides, building- and gravel industries.

The destruction of many single plant foci may help reducing the number of seeds produced and may slow therefore the spreading of ragweed.

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