The Speed of Evolution of Herbicide Resistant Weeds in Rice

Chloroacetamides and others HRAC Group K3 Inhibition of cell division (Inhibition of very long chain fatty acids) # Species & Country Res Year Herbicides Entry Year Yrs to Res Yrs to Res 1 . Echinochloa crus-galli China 1993 butachlor 1975 18 18 2 . Echinochloa crus-galli Thailand 1998 propanil butachlor 1964 1975 34 23 23         Ave: 20.5