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
Metsulfuron resistance in Rumex dentatus
Rumex dentatus (Toothed dock) is a major broadleaf weed of Rabi season and is a serious problem of irrigated wheat particularly of rice-wheat system. This weed is highly competitive and besides reducing the yield also interferes with combine harvesting. Rumex dentatus is highly sensitive to metsulfuron and this herbicide is providing effective control of this weed for the last 15 years in wheat in India. However, during 2013 in pot and field studies it was observed that one of the population of Rumex dentatus has evolved metsulfuron resistance (ALS inhibition). It has shown the cross-resistance to mesosulfuron + Iodosulfuron, pyroxsulam, halauxifen + florasulam. For its control, carfentrazone, 2,4-D amine, pendimethalin and isoproturon were found effective.
CONTRIBUTING WEED SCIENTISTS