• WSSA Board Issues Statement Concerning Registration of Glyphosate
  

  WESTMINSTER, Colorado – August 12, 2019 – Today the board of directors of the Weed Science Society of America (WSSA) issued a statement supporting the U.S. Environmental Protection Agency’s (EPA) science-based approach to evaluating glyphosate – a herbicide that has … more »

• WSSA’s Position on Glyphosate
  

  Glyphosate is a uniquely effective and generally nonselective herbicide with a wide range of uses in both agricultural and nonagricultural settings. It has been widely adopted in conjunction with glyphosate-resistant (‘Roundup Ready’) crops, and is also more »

• WSSA Calculates 70% Yield Loss from Uncontrolled Weeds in Dry Bean and Sugar Beet Crops 
  

  WESTMINSTER, Colorado  – June 18, 2019  – The Weed Science Society of America (WSSA) has completed a significant new initiative to quantify the impact of weed control on dry bean and sugar beet crops grown in the U.S. and Canada.  … more »

• Will Gene Sequencing Lead to New Weed Control Strategies?
  

  Palmer amaranth and waterhemp are two troublesome amaranthus species weeds that are resistant to multiple herbicides. They also have unique reproductive features. more »

• A Perfect Storm: Are Environmental Factors Fueling Herbicide Resistance?
  

  Sobering global survey data shows weeds have evolved resistance to 167 herbicides spanning 23 of 26 known sites of action. Now scientists writing in the journal Invasive Plant Science and Management say climate change and elevated levels of carbon dioxide (CO2) may be contributing to the development of herbicide resistance. more »

• Can Native Plants Make a Comeback on Their Own
  

  As invasive shrubs become more prevalent in U.S. forests, they are creating dense understories that outcompete native plants. Land managers with limited resources find themselves facing a tough decision. Does it make sense to remove the invaders if a comprehensive restoration program isn’t possible? more »

• A Layby Application Made a 1,400-Pigweed Difference per Acre
  

  That layby application you made, or didn’t make, matters when it comes to continued pigweed control in cotton, and it can help preserve a valuable tool. more »

• Invasive Weed Fuels Wildfires, UC Scientist Says
  

  When wildfires burn in California, people often call them forest fires or brushfires, but the odds are high that an invasive weed is an unrecognized fuels component, says a UC Agriculture and Natural Resources scientist. more »

• Honestly Evaluate Your Weed Program With 10 Questions
  

  Most of the weed control successes or failures that occur on your farm will depend upon the management decisions that YOU make or don’t. more »

The WSSA, a non-profit professional society, promotes research, education, and extension outreach activities related to weeds; provides science-based information to the public and policy makers; and fosters awareness of weeds and their impacts on managed and natural ecosystems. Learn more about the WSSA.