• Federal Agency Perspectives and Funding Opportunities for Weed and Invasive Plant Research Symposium
  

  Extract Weeds and invasive plants know no borders and have collectively impacted many ecosystems worldwide, including croplands, forests, grasslands, rangelands, wetlands, and riparian areas. Losses continue to mount, affecting yield and productivity, species diversity, and ecosystem services, with both short- … more »

• Weed Science School 2023
  

  Weed Science School 2023 September 19-21, 2023 Bowley Plant Science Teaching Facility UC Davis Bowley Plant Science Teaching Facility 1200 Extension Center Drive, Davis, CA The Weed Science School is an intensive 2-1/2 day course focusing on the mode and mechanism of herbicide activity in plants and … more »

• Distinguishing invaders from native plants
  

  Easy-to-Use Checklist Speeds Field ID of Invasive Reeds Invasive common reed (Phragmites australis) is one of Canada’s worst weeds. Unfortunately, the plant is very similar to a native reed that is a valued component of local ecosystems. That makes identification … more »

• Study Shows Spectral Data Can Be Used to Improve Automated Weed Identification
  

  WESTMINSTER, Colorado –  14 April 2023 – Progress is being made in the race to deploy highly targeted, machine-based weed control solutions. But one gating factor is the inability of sensors to reliably distinguish weeds from crops. Researchers in Brazil, … more »

• Study Shows Variable-Density Planting Can Be a Cost-Effective Tool for Weed Control
  

  WESTMINSTER, Colorado – December 20, 2022 – High-density crop planting is a proven approach for suppressing patches of weeds that escape other controls. Unfortunately, though, the cost of seed keeps many growers from considering this dense planting strategy. Researchers writing in … more »

• Research Shows Pairing Herbicides with Prescribed Burning Improves Downy Brome Control
  

  WESTMINSTER, Colorado – July 27, 2022 – Downy brome is an annual winter grass invading millions of acres of western rangelands and wildlands. It emerges early in the spring while native perennials are still dormant and creates dense mats of … more »

• Deteriorating weed control and variable weather portends greater soybean yield losses in the future
• Think Climate Change is bad for corn? Add weeds to the equation
  

  URBANA, Ill. – By the end of the century, scientists expect climate change to reduce corn yield significantly, with some estimating losses up to 28%. But those calculations are missing a key factor that could drag corn yields down even … more »

• Attack of the Superweeds: Herbicides are losing the war — and agriculture might never be the same again.
  

  Click on the link below for the article  https://wssa.net/wp-content/uploads/NYT-Magazine_Attack-of-the-Superweeds_Aug-22-2021.pdf

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.