Photo's from slide show: Biological Control of Noxious
        Weeds, by Reeves Petrof        Description:
Roots:   Reddish brown that contain pink-colored buds at the crown (top of root, just below surface) when the top growth is removed, new shoots will develop from the buds (1).  The roots are thick and corky looking that allow it to survive during drought and periods of chemical treatment (7).  They will penetrate to approximately 15 feet horizontally and 40 feet vertically (7).  It is a perennial (grows back every year from the roots) (2).
 Other:  Other controls of leafy spurge may be as follows: mowing and burning, pulling by hand, plant competition, reduction, and eradication (11).  For reducing    leafy spurge infestations, mowing and burning are ineffective.  Although, it may provide a more effective herbicide treatment (5).  For best results, allow five weeks of regrowth before applying herbicide applications (5).  To reduce seed production, mow every two to four weeks during growing season (5).  Even for small, isolated patches,  pulling by hand is very ineffective because of the deep root system (5).  Perennial grass species can effect the supply of moisture and nutrients to the plants (5).  Reduction is where you take out the dominance of the plant, but it takes time and money (11).  By using the eradication  method you get rid of it on your land (11).

  How to Prevent Spread:  Use weed seed free hay, isolate animals for a week that were in an infested area so that all the seeds can go through the animals body, wash the under carriage of vehicles in a commercial area making sure all seedlings; stems; flowers; etc. are washed down the drain, and don't get soil or gravel from an area infested with leafy spurge (2).