This section archives survey results for the most common and troublesome weeds in the U.S. and Canada. This is a voluntary survey offered to public and private weed scientists, extension agents, crop consultants and other land and water managers with expertise in weed management.

The Weed Science Society of America is planning to produce a series of fact sheets for educating the broader community on various issues associated with weeds and herbicide resistance management.

The WSSA publishes three peer-reviewed journals. For more information about the journals, check the links below.