The 'Group' letters/numbers that you see throughout this web site refer to the classification of herbicides by their site of action. To see a full list of herbicides and HRAC herbicide classifications click here.
QUIK STATS (last updated Jan 20, 2015 )
NOTES ABOUT THIS BIOTYPE
The initial case reported by Jean-Pierre Claude in 2000 was to bensulfuron-methyl, however we have now (2013) also found penoxsulam resistance in Cyperus difformis.
Gabriel Pardo, Jose Maria Urbano
CONTRIBUTING WEED SCIENTISTS