All of these factors make controlling dyers woad difficult. Preventing dyers woad from becoming established is the best control method of all. Vehicles, trains or infested hay, most often spread dyers woad. To prevent it from becoming established, closely watch roadways, railways and areas where hay is fed. Individual plants are easily controlled by the methods listed below.
Immediate action is necessary to prevent the infestation from growing.
Competition from other desirable plants is important in slowing the spread of dyers woad. Proper management techniques that benefit desirable plants are the first step in a control program. If dyers woad has displaced all other desirable plants, reseeding with adapted species after control measures have been implemented may be necessary. Mechanical Hand pulling, digging chopping or grubbing can be effective on smaller populations. The taproot must be removed below the crown of the plant or it will resprout.