INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
©2021 WeedScience.org, Dr. Ian Heap 01/21/2021


PLEASE NOTE
This chart presents the occurrence of multiple resistance within the same population.
This is different to the next chart which presents cumulative SOA's for a species.


PERMISSION MUST BE OBTAINED FIRST if you intend to base a significant portion of a scientific paper on data derived from this site. Citation:
Heap, I.  The International Herbicide-Resistant Weed Database.  Online.  Thursday, January 21, 2021 .  Available  www.weedscience.org Copyright © 1993- 2021 WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.