International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
 Glyphosate Mutation Database - Dr. Todd Gains. May 15th 2014.
Dr. Todd Gains has compiled a list of weeds with mutations that confer resistance glyphosate Click Here.
PowerPoint Charts Available for Download
High resolution PowerPoint charts available for presentations and extension publications. The PowerPoint contains charts made in Excel. Data from May 18th, 2014. WSSA version (WSSA Group Numbers) and HRAC version (HRAC Group Letters) . PowerPoint Charts
International Survey of Herbicide Resistant Weeds
Tuesday, July 29, 2014
There are currently 434 unique cases (species x site of action) of herbicide resistant weeds globally, with 237 species (138 dicots and 99 monocots). Weeds have evolved resistance to 22 of the 25 known herbicide sites of action and to 155 different herbicides. Herbicide resistant weeds have been reported in 82 crops in 65 countries. There website has 1885 registered users and 439 weed scientists have contributed new cases of herbicide resistant weeds. View Recent Additions, Site of Action Summary, or the Herbicide Classification System.

About the Survey
The purpose of this survey is to monitor the evolution of herbicide-resistant weeds and assess their impact throughout the world. The site is a global collaboration between weed scientists with a common goal of understanding, preventing and managing the occurrence of herbicide-resistant weeds.
  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

  • GET ABSTRACT

    
PERMISSION MUST BE OBTAINED FIRST if you intend to base a significant portion of a scientific paper on data derived from this site.
Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Tuesday, July 29, 2014 .  Available  www.weedscience.org
Copyright © 1993-2014 WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.