"gutierrezia microcephala" is among one of the most widespread and damaging rangeland weeds, and is an indicator of overgrazed or disturbed rangelands. the herbicides picloram and triclopyr have been found to give satisfactory control, with control lasting at least 5 to 7 years with proper grazing management. biological control has also been studied, with a combination of an argentinean root-boring weevil, "heilipodus ventralis", and an argentinean moth root-borer, "carmenta haematica", found to be an effective method of control.