Recommended Sites

Want to know more about herbicide resistance in weeds? Find links to our partners all over the world.


International Weed Science Society

The International Weed Science Society deals with global weed science issues, and is formed by individuals from Europe, North America, South America and Asian-Pacific weed science societies.


Asian Pacific Weed Science Society 

The Asian Pacific Weed Science Society is an international body that can express regional views on all issues relating to weeds and their management. It’s composed of executive members from national weed and plant protection societies.

Australian Herbicide Resistance Initiative 

Australian Herbicide Resistance Initiative is research leaders in herbicide resistance and its management in cropping systems.

Australian Glyphosate Sustainability Working Group

The Australian Glyphosate Sustainability Working Group is a collaborative initiative involving research, industry and extension representatives with the purpose of promoting the sustainable use of the herbicide glyphosate in Australian agriculture.

Council of Australasian Weed Societies 

The Council of Australasian Weed Societies (CAWS) is an independent body that can express national and regional views on all issues relating to weeds and their management. The council is composed of delegates from Australian State Societies and the Plant Protection Society of New Zealand.

New Zealand Plant Protection Society 

The New Zealand Plant Protection Society’s objective is to pool and exchange information on the biology and management of weeds, pests and pathogens of plants and beneficial organisms.

Weed Science Society of China 

The Weed Science Society of China is tasked with the research, communication and popularization of new weed control technologies, in order to help increase crop yields, save labor, reduce labor intensity, improve agricultural productivity and contribute to conversion to modern sustainable agriculture practices.

Weed Science Society of Japan 

The Weed Science Society of Japan contributes to the prevention of weed damage by providing research opportunities and information exchange on weed science in wide views in Japan and other Asia-Pacific regions.

Weed Science Society of Republic of China (WSSROC, Taiwan)

The Weed Science Society of Republic of China provides weed science information through occasional symposiums, through their official Journal, Weed Science Bulletin and through an electronic newsletter.


European Weed Research Society

The European Weed Research Society is an international organization that promotes and coordinates scientific research into all aspects of weed science.

Sociedad Española de Malherbología

Societá Italiana per la Ricerca sulla Flora Infestante (S.I.R.F.I)

Rothamsted Research


Canadian Weed Science Society/Société canadienne de malherbologie 

The Canadian Weed Science Society is made up of professionals from university, government and industry who specialize in research, teaching, extension and regulation of weed-related topics.

Weed Science Society of America

The Weed Science Society of America is an organization that fosters an awareness of weeds and their impact on our environment. They provide science-based information to the public and government policymakers while promoting research, education and outreach activities.

North Central Weed Science Society 

The North Central Weed Science Society is made up of professionals interested in weed science from many perspectives. Many members are affiliated with universities or the crop protection industry; others are crop consultants, state or federal agency or private research personnel, extension educators and others.

Northeastern Weed Science Society

The Northeastern Weed Science Society serves the Northeastern United States by bringing together those who are concerned with the knowledge of weeds and their control; cooperates with other scientific societies to promote research, education and outreach activities; and publishes scientific and practical information of value concerning weed science and related fields.

Southern Weed Science Society

The Southern Weed Science Society was established to bring together people from any state, area, institution or agency, who are directly interested in weed control within the Society area through research, education, regulation, manufacturing or merchandising.

Western Society of Weed Science

The Western Society of Weed Science supports and fosters education, research and agencies/organizations in matters of weed science.