The International Weed Science Society (IWSS)
IWSS Presidents
  • Les. J. Matthews (New Zealand, 1977-1979)
  • Marvin M. Schreiber (USA, 1979-1981)
  • Schooichi Matsunaka (Japan, 1981–1983)
  • Marcos R. Vega (Philippines, 1983–1985)
  • Keith Moody (UK, 1985–1988)
  • George Friesen (Canada, 1989–1990)
  • Chester L. Foy (USA, 1991–1992)
  • Leon Smith (Australia, 1993–1994)
  • John Terry (UK, 1995–1996)
  • Jonathan Gressel (Israel, 1997–1999)
  • Ricardo Labrada (Cuba, 1999–2001)
  • Steve Duke (USA, 2001–2004)
  • Bernal Valverde (Costa Rica, 2004-2008)
  • Baruch Rubin (Israel, 2008-2012)
  • Albert Fischer (USA, 2012-2016)
  • Nilda Roma-Burgos (USA, 2016-2020)
  • Samunder Singh (India, 2020-2024)
WSSA Board

1975 (Society’s incorporation,
February 18)
Board of Directors (6) and Directors

Larry Burrill (USA)
John Fryer (UK)
Jerry Doll (USA)
Marvin M. Schreiber (USA)
W. B. Ennis, Jr. (USA)
Stanley F. Miller (USA)
Georgena S. Knapp (USA)
Neal E. Shafer

1976
Secretary-Treasurer
Steering Committee Members

 

Larry Burrill (USA)
John Fryer (UK)
Chris Parker (UK)
Les. J. Matthews (New Zealand/FAO Italy)
Marvin M. Schreiber (USA)
W. B. Ennis, Jr. (USA)
LeRoy Holm (USA)
Schooichi Matsunaka (Japan)
John Terry (UK)
Neal E. Shafer (Chair)

1977-1979
President
Vice President/President Elect
Secretary-Treasurer
Newsletter Editor (Multilingual)


Les J. Matthews (New Zealand), July 1977 
Marvin M. Schreiber (USA)
Larry Burrill (USA, 1977-1986)
Chris Parker (UK) & Jerry Doll (USA)

1979-1981
President
Vice President/President Elect
Secretary-Treasurer
Past President
Newsletter Editor


Marvin M. Schreiber (USA) (1979)
Schooichi Matsunaka (Japan) (1980)
Larry Burrill (USA)
Les. J. Matthews (New Zealand) 
Chris Parker (UK) & Jerry Doll (USA)

1981-1983
President
Vice President/President Elect
Secretary-Treasurer
Past President
Newsletter Editor

 

Schooichi Matsunaka (Japan), Sept. 1, 1981
Marcos R. Vega (Philippines)
Larry Burrill (USA)
Marvin M. Schreiber (USA)
Chris Parker (UK) & Jerry Doll (USA)

1983-1984
President
Vice President/President Elect
Secretary-Treasurer
Past President
Newsletter Editor

 

Marcos R. Vega (Philippines)
Keith Moody (IRRI, Philippines)
Larry Burrill (USA)
Schooichi Matsunaka (Japan)
Chris Parker (UK) & Jerry Doll (USA)

1984-1988
President
Vice President
Secretary-Treasurer
Past President
Newsletter Editor

 
Keith Moody (IRRI, Philippines)

Larry Burrill (USA, 1977-1986)
Marcos R. Vega (Philippines)
Jerry Doll (USA, 1985)

1988-1990
President
Vice President/President Elect
Vice President
Secretary-Treasurer
Newsletter Editor

 

George H. Friesen (Canada)
Chester Larry Foy (USA)
Leon W. Smith (Australia), Vacant in 1990
Raj Prasad (Canada)
Susan Larson (USA)

1990-1992
President
Vice President
Secretary-Treasurer
Newsletter Editor

 

Chester L. Foy (USA)
Leon Smith (Australia)
Raj Prasad (Canada)
Susan Larson (USA)

1992-1994
President
Vice President
Secretary-Treasurer
Past President
Newsletter Editor

 

Leon Smith (Australia)
John Terry (UK)
Raj Prasad (Canada)
Chester L. Foy (USA)
Susan Larson (USA)

1994-1996
President
Vice President
Secretary-Treasurer
Newsletter Editor

 

John Terry (UK)
Jonathan Gressel (Israel)
Raj Prasad (Canada)
Susan Larson (USA)

1997-1999
President
Vice President
Secretary-Treasurer
Past President
Newsletter Editor


Jonathan Gressel (Israel)
Ricardo E. Labrada Romero (Italy)
Carol Mallory-Smith (USA)
John Terry (UK)
Carol Mallory-Smith (USA)

1999-2001
President
Vice President
Secretary-Treasurer
Past President
Newsletter Editor


Ricardo E. Labrada Romero (Italy)
Stephen O. Duke (USA)
Carol Mallory-Smith (USA)
Jonathan Gressel (Israel)
Carol Mallory-Smith (USA)

2001-2004
President
Vice President
Secretary-Treasurer
Past President
Newsletter Editor


Stephe Duke (USA)
Anis Rahman (New Zealand)
Bernal Valverde (Costa Rica)
Ricardo Labrada-Romero (Italy)
Carol Mallory-Smith (USA, 2000)
Jerry Doll (USA, 2001-2004)

2004-2008
President
Vice President
Secretary-Treasurer
Past President
Newsletter Editor


Bernal Valverde (Costa Rica)
Baruch Rubin (Israel)
Albert Fischer (USA)
Stephen Duke (USA)
Jerry Doll (USA)

2008-2012
President
Vice President
Secretary-Treasurer
Past President
Newsletter Editor


Baruch Rubin (Israel)
Albert Fischer (USA)
Nilda Burgos (USA)
Bernal Valverde (Costa Rica)
Mike Owen (USA, 2008-10)
Samunder Singh (India, 2010-12)

2012-2016
President
Vice President
Secretary
Treasurer
Past President
Newsletter Editor


Albert Fischer (USA)
Nilda R. Burgos (USA)
Samunder Singh (India)
Franck Dayan (USA)
Baruch Rubin (Israel)
Samunder Singh (India)

2016-2020
President
Vice President
Secretary
Treasurer
Past President
Newsletter Editor


Nilda R. Burgos (USA)
Samunder Singh (India)
Do-Soon Kim (South Korea)
Ian Burke (USA)
Albert Fischer (USA)
Samunder Singh (India)

2020-2024
President
Vice President
Secretary
Treasurer
Past President
Newsletter Editor

 

Samunder Singh (India)
Do-Soon Kim (South Korea)
Luis Avila (Brazil)
Te-Ming Paul Tseng (USA)
Nilda R. Burgos (USA)
Samunder Singh (India)/Prashant Jha (USA)