International Plant Protection Congresses (IPPCs) 1946 – the Present
| Congress no. | Year convened | Year if Quadrennial | Location | President | Organizer(s)/hosts | Attendance |
| I | 1946 | 1946 | Louvain, Belgium | Dr. A. Strassens | ? | ? |
| II | 1949 | 1950 | London, England | Vicount Bledisloe | ? | 450 |
| III | 1952 | 1954 | Paris, France | Dr. Jean Lefevre | ? | ? |
| IV | 1957 | 1958 | Hamburg, Germany | Prof. H. Richter | ? | ? |
| V | 1963 | 1962 | London, England | Sir Robert Robinson | ? | 560 |
| VI | 1967 | 1966 | Vienna, Austria | Prof. F. Beran | ? | 1260 |
| VII | 1970 | 1970 | Paris, France | Dr.Jean Bustarret | Dr. M. Colas | ? |
| VIII | 1975 | 1974 | Moscow, USSR | Dr. Ivan Churayev | Dr. A. A. Goltsov | 1,687 |
| IX | 1979 | 1978 | Washington, DC | Dr. James D. Horsfall | Dr. Bill Tweedy/APS | 2,160 |
| X | 1983 | 1982 | Brighton, UK | Dr. Leonard Broadbent | Dr. E. Lester | +2,300? |
| XI | 1987 | 1986 | Manila, Philippines | Dr. Jose Velsaco | Dr. Edwin Magallona | ? |
| XII | 1991 | 1990 | Rio de Janeiro, Brazil | Mr. Omuz F. Rivaldo | Christiano W. Simon | 1,354 |
| XIII | 1995 | 1994 | The Hague, Netherlands | Dr. Johan Dekker | Dr. Jan Zadoks | 1,100 |
| XIV | 1999 | 1998 | Jerusalem, Israel* | Dr. Yoram Rossler** | Dr. Jaacov Katan | 1,016 |
| XV | 2004 | 2002 | Beijing, P.R. China | Hans Herren/IAPPS | Dr. Cheng Zhuo-min/ CSPP L. Apple/IAPPS | 2,061 |
| XVI | 2007 | 2006 | Glasgow, Scotland | Hans Herren/IAPPS | Dr. David V. Alford/BCPC E.A.Heinrichs/IAPPS | 1,100 |
| XVII | 2011 | 2010 | Honolulu, Hawaii | Geoff Norton | Ray Martyn/APS B. G.Tweedy/IAPPS E. A. Heinrichs/IAPPS | 1,891 |
| XVIII | 2015 | 2014 | Berlin, Germany | Geoff Norton | Falko Feldman DPG Geoff Norton/IAPPS E.A. Heinrichs/IAPPS | 1,233 |
| XIX | 2019 | 2019 | Hyderabad India | Geoff Norton | Hari C. Sharma/ ICRISAT Rajan Sharma/ ICRISAT Geoff Norton/ IAPPS E. A. Heinrichs/ IAPPS | 800 |
| XX | 2024 | 2023 | Athens, Greece | Geoff Norton | Eris Tjamos, University of Athens E. Paminondas, University of Athens Geoff Norton/IAPPS | 800 |
*IAPPS formed in Jerusalem.
**The International Advisory Committee of the IPPC appointed Hans Herren as the 1st IAPPS President at the XIV IPPC in Jerusalem.
File: EAH/IPPC HistorySummary0420121233
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