Bayer’s online GrassWeed Database gives details on the world’s most prevalent grass weeds in cereal crops. The database contains information on 50 top grass species and a weed identification tool that can help the user to identify a grass. It also makes possible to see an infestation map for the nine most important grasses in cereal production.

The resource can be accessed at http://courier.bayercropscience.com/gwdsite/frameset.html?http://courier.bayercropscience.com/
gwdsite/gwd/en/index.html.