MARK YOUR CALENDAR AND REGISTER - March 28-29, 2012!
2nd International Ragweed Conference in Lyon, France
LINK TO THE CONFERENCE WEBSITE
MARK YOUR CALENDAR - June 23, 2012!
International Ragweed Day
The General Assembly of IRS (held in Ascona, Switzerland on October 6, 2012) 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.
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.
A general introduction - a PowerPoint presentation
Front page news
November 15, 2010 - General Assembly Meeting in Payerne, Switzerland: the President's Address and minutesThe President's Message: Merry Christmas and Happy 2011!
Useful links
- Aerobiological Research Institute, France
- European Weed Research Society
- Pollenindex, Hungary
- European Aerobiology Society
- L'Ambroisie
- Meteosuisse - pollen
- Polleninfo
- World Allergy Organization
- Associazione Italiana di Aerobiologia
- AFEDAnet: site de l'ambroisie
- Hungarian Plant Protection Society
- Plant Protection Institute of the Hungarian Academy of Sciences
Photos
Further info
CONFERENCESRecent and upcoming meetings where ragweed-related problems are discussed.
1. Ragweed as invasive plant. August 6-10, 2011, Honolulu, Hawaii
2. Environmental and invasive weeds. October 2-7, 2011, Ascona, Switzerland
3. Ragweed in agri-environment, September 20-22, 2011, Budapest, Hungary
4. Second International Ragweed Conference. March 28-29, 2012, Lyon, France
5. 25th German Conference on Weed Biology and Weed Control. March 13-15, 2012, Braunschweig, Germany.
CONTROL MEASURES
Evaluated methods of ragweed control are listed here.
Ragweed pollen concentration map of Europe at the end of August is shown on this map.
PICTURE OF THE MONTH
The best ragweed-related picture of the month: if you would like to see yours here,
just send it to us!

If you would like to be a member, please let us know!
Membership fees
Individual:
10 Euros
Student: 5 Euros
Senior (> 65 y): 5 Euros
Institutional: 100 Euros


