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Announcing the International Ragweed Day – June 23, 2018

Announcing the International Ragweed Day – June 23, 2018

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.

Download the 2018 leaflet (pdf)



IRS is pleased to offer 3 prizes for the best photos related to ragweed, ragweed and Ophraella and other related subjects (i.e. teaching, awarness, meeting, field research, field activity, etc).

To submit photos, select PROGRAM on and PHOTO CONTEST, follow the regulations and specify RAGWEED in the subject of the email. Deadline: June 15th.

The winners will receive reimbursement for the participation at the “2-day ragweed package” (equivalent to €220,00 plus VAT) after their participation at the scietific event.

Hope to receive numerous photos!

IRS Grants for ICA 2018

IRS Grants for ICA 2018

The International Ragweed Society (IRS) is pleased to offer 6 grants to attend ICA2018 in Parma, Italy (3 oral presentations and 3 posters) for young ragweed researchers (up to 31 years of age).

Only applicants with an accepted abstract can be granted. Applications are expected from researchers studying any aspect of Ragweed and must be or become members of IRS (fee 2016-2017: 50 € or 30€ if student;

Those who are awarded a grant will receive a contribution of 220 € for their participation to the “2-day ragweed package” (3rd-4th September of 2018).

The application deadline is February 19th, 2018.

More information

Edit: the application deadline has been postponed to March 5th, 2018.

Ophraella Communa

Ophraella Communa

Sarah LABRUYERE and Marilou MOTTET from the French ragweed observatory ( took their microphone and camera to meet researchers working on Ophraella communa. Here is a 5 min video (in French)  to present the case of this chrysomelid which is predatory of Ambrosia artemisiifolia.

(with the participation of Bruno Chauvel and Heinz Mueller-Schaerer).

ICA Congress, 3-7 of September, Parma, Italy

ICA Congress, 3-7 of September, Parma, Italy


The 11th International Congress on Aerobiology will take place in Parma (Italy) for 3 to 7 of September, 2018.

The Congress may still seem far away, but it is approaching fast.

The call for abstracts has been open already for several weeks:

Some Associations and Societies are promoting useful grants for the participation of young researchers.

Springer Journal “Aerobiologia” will present a special issue to the conference (ADVANCES IN AEROBIOLOGY FOR THE PRESERVATION OF HUMAN AND ENVIRONMENTAL HEALTH: A MULTIDISCIPLINARY APPROACH) dedicated to the publication of short communications peer per view, among all those who will have an oral presentation during the congress. For this, there will be a special place for young researchers and for better abstracts sent.

In addition, a photo contest has been set up in which anyone in the different categories can participate with any photographic material that he thinks fit:

For more information, please visit the web site of the congress:

Short presentation of the congress: ICA2018