Ragweed – A success story

Ragweed – A success story

Tackling ragweed:
a multidisciplinary and international approach

With the scientific support of:


After the first International Ragweed Congress in Budapest in 2008 with Tamas Komives, the second one we organized in Lyon in 2012 and the last one in Rho (Milano) organized by our past president Maira Bonini, we have decided to organize a new International Ragweed Congress in Budapest in September 2022, 8-9th

The title of this congress will be RAGWEED: A SUCCESS STORY – Tackling Ragweed: a multidisciplinary and international approach.

On this page, you will find all the information you need to participate to the congress: venue, accommodation, “call for abstract” and registration form.

We hope that a lot of scientists, engineers or personalities will join us in Budapest.

Local organizing committee

László Makra, Donát Magyar and Tamás Szigeti

The scientific committee

László Makra – Professor  University of Szeged, Hungary
Tamás Kőmíves – Academician, Hungarian Academy of Sciences, Budapest, Hungary
Donát Magyar – Head of Department, National Center for Public Health, Hungary
László Orlóci – Director, Eötvös Loránd University, Botanical Garden, Budapest, Hungary
Gabriella Kazinczi – Professor, institute director, Szent István University, Kaposvár Campus, Kaposvár, Hungary
Zoltán Botta-Dukát – Professor, Centre for Ecological Research, Hungarian Academy of Sciences, Vácrátót, Hungary
Maira Bonini – Director of Hygiene and Public Health Service, Agency for Health Protection of Metropolitan Area of Milan (ATS), Milan, Italy
Heinz Mueller-Schaerer – Professor, Department of Biology, University of Fribourg, Switzerland.
Michel Thibaudon – President of the International Ragweed Society


October 2021: first call for abstract
January 2022: second call for abstract
March 2022: last call for abstract
19th of April 2022: deadline for abstract
April and May 2022: examination of the abstracts by the scientific committee
End of May: proposal of program
April 2022: registration call
June 2022: registration call
14th of July 2022: deadline early registration
July 2022: registration call
August 2022: late registration


Preliminary Program

Find here the detailed Preliminary Program

Thursday 8th of September

Arrival of participants and registration

Lunch at the Conference venue


14:15 – 14:45
Keynote lecture 1

14:45 – 16:00
Scientific Session 1 (5 talks)

16:00 – 16:30
Coffee break

16:30 – 17:30
Scientific Session 2 (4 talks)

17:30 – 18:30
Poster Session with drinks

Conference dinner

Friday 9th of September

08:30 – 9:00
Keynote lecture 2

09:00 – 10:30
Scientific Session 3 (6 talks)

10:30 – 11:00
Coffee break

11:00 – 12:45
Scientific Session 4 (7 talks)

12:45 – 14:00
Lunch at the Conference venue

14:00 – 14:30
Keynote lecture 3

14:30 – 16:00
Scientific Session 5 (6 talks)

16:00 – 16:30
Coffee break

16:30 – 17:30
Stakeholder Meeting (in Hungarian)
The Ambrosia situation in Hungary today and in the future

Farewell with drinks

Saturday 10th of September

Optional field trip /city tour



Registration is now open. To register, please fill the registration form below.

For questions regarding registration, please contact directly:

Dr. László Makra
University of Szeged
Faculty of Agriculture – Institute of Economics and Rural Development
Hódmezővásárhely, Hungary
Email: makra.laszlo@mgk.u-szeged.hu

The following items are included in the registration fee:

  • Thursday, September 8, 2022
    • Lunch at the conference venue
    • Coffee break
    • Conference dinner
  • Friday, September 9, 2022
    • Coffee break
    • Lunch at the conference venue
    • Coffee break
    • 17:30: Farewell with drinks
  • Saturday, September 10, 2022
    • Post-conference tour
    • A visit to the botanical garden, Budapest
  • Publishing of the presentation abstracts in a separate edition.
  • Publishing of the presentation abstracts in the journal Ecocycles.




The congress will be held at the National Public Health Center in Budapest, Hungary.
Address: Albert Flórián út 2-6., H-1097 Budapest, Hungary

We recommend using public transportation when traveling to the congress venue. When you travel directly from the airport, take bus 200E at the airport (the bus stop is located between Terminal 2A and Terminal 2B) and travel until you reach the final station (Kőbánya-Kispest). Here take metro 3 (M3) until Nagyvárad tér, whereNational Public Health Center.is located. Total time between airport and congress venue is cca. 50 min. If you come from the city center, then reach Nagyvárad tér (metro M3), there is only a 2-3 min walk from the underground station to the workshop venue. Metro 3 repalcement bus (M3) is also available.

You can enter to the territory of the National Public Health Center through the gray building located in Nagyvárad tér 2 (‘T’ building). Please indicate at the reception that you arrived to the IRS congress meeting and they will let you in. The workshop is located in the ‘T’ building on the ground floor. Signs will help you to find the connference hall.


The capital of Hungary, known by many as the “Pearl of the Danube”, is undoubtedly one of the most beautifully located cities in the world. The River Danube runs through the middle of the metropolis of two million, dividing hilly Buda with its narrow-cobbled streets and mixture of mediaeval and neo-classical buildings from the flat area of Pest with its wide boulevards. The picturesque panorama offered by the river and its bridges, the Parliament building, the imposing Royal Castle, the Fishermen’s Bastion and the impressive Danube Embankment led UNESCO to place this site on the World Heritage list.

Visitors will find side by side the remains of fortresses and buildings from Roman times, still-functioning Turkish baths, Gothic and Baroque buildings, and the incredibly rich Art Noveau architectural heritage. There is no other capital city in the world which can boast close to 100 thermal springs and 12 medicinal baths, where 19 million gallons of thermal water rise to the surface each day.

It is a city where the pleasing harmony of different architectural styles and superb structures, the cafés, gastronomy and culture are combined with the legendary Hungarian hospitality, blending into an unforgettable experience for visitors.

Budapest is the venue for numerous congresses, international meetings, sports competitions and cultural events, with its developed infrastructure, elegant shops and modern hotels. Budapest’s cultural life is widely renowned, with more than 20 theatres and also ample to explore!

Getting to Budapest

It is very easy to get to Budapest by plane, there are several airlines offering direct flight from several countries. Budapest Ferenc Liszt International Airport is the international airport serving the Hungarian capital city. The airport is located about 16 km southeast of the center of Budapest.

You can reach the city center by public transport (bus 200E and 100E). Bus 200E operates day and night between Terminal 2 and Kőbánya-Kispest M3 station, where you should transfer to M3 to reach Nagyvárad tér metro station. You can purchase your two tickets at the machine located at the bus stop. One single ticket costs 350 HUF (1 EUR). Take metro M3 station from Nagyvárad tér to the city centre. Direct shuttle service 100E operates between the airport and Deák Ferenc tér. Passengers require a special ticket for bus 100E: the airport shuttlebus single tickets costs 900 HUF (3 EUR). You can find further information on the use of public transportation from the airport here.

You can reach the city center by taxi. Reservations can be made in person at the Főtaxi booths located at the exits at Terminals 2A and 2B. At the taxi rank in front of the stands, taxis are parking continuously waiting for passengers. The taxi drive from the airport to the workshop venue cost about 6000 HUF (18 EUR). In Hungary, the taxi decree regulates the price of taxis at a fixed tariff of 300 HUF/km (0.95 EUR/km), in addition to a one-off basic fee of 700 HUF (2.2 EUR) and a waiting fee.

You can use BKK Futár to plan your trip in Budapest.

Please contact Tamás Szigeti for further information (szigeti.tamas@nnk.gov.hu; +36 30 9084346)


Recommended hotels:

Hunguest Hotel Millennium***
1089 Budapest, Üllői út 94-98.
Tel.: +36 1 477 8000
Email: hotelmillennium@hunguesthotels.hu
This hotel is the closest to the conference venue.

Di Verdi Imperial Hotel****
Thaly Kálmán u. 43 ·(06 1) 609 8370

Mercure Budapest Castle Hill****
1013 Budapest, Krisztina körút 41-43.
Tel: +36 1 488-8100
Fax: +36 1 488-8178
E-mail: h1688@accor.com

Ibis Budapest Centrum Hotel
1092 Budapest, Ráday utca 6.
Tel.: +36 1 456-4100
Fax: +36 1 456-4116
E-mail: h2078@accor.com
Single room, Double room, Apartment (4-5 persons):
Centrally located hotel in a street packed with music pubs, restaurants, cafes.

Hotel Orion Várkert***
1013 Budapest, Döbrentei utca 13.
Tel.: +36 1 356-8583
Fax: + 36 1 375-5418
E-mail: orionhot@t-online.hu
Single room, Double room, Apartment (4-5 persons)
Nice hotel in a quiet, elegant area on the Buda side, close to the Castle district.

Medos Hotel Budapest***
1061 Budapest, Jókai tér 9.
Tel.: +36 1 374-3001
Fax: +36 1 332-4316
E-mail: reservation@medoszhotel.hu
Single room, Double room, Apartment (4-5 persons)
Located in a lively downtown square with a lot of bars, cafes, restaurants and nightlife.

Hotel Griff Junior*
1113 Budapest, Bartók Béla út 152.
Tel.: +36 1 203-2398
Fax: +36 1 203-1255
Single room, Double room, Apartment (4-5 persons)
Simple and economical accommodation, located out of the busy downtown. The conference venue is 45 minutes away from the hotel.

Report of the conference