Grassland Evaluation Contest Study Guide	Fifth Edition: October 2005
Grassland Evaluation Contest Rules - District & State
Is weed or brush control needed other than by grazing or soil fertility management? Yes No Weed and brush control is sometimes necessary to control certain invading species. Many weedy plants can be controlled by good grazing management and proper use of fertilizer. Forage plants growing in pastures that have good soil fertility and are not overgrazed are more competitive and prevent many weeds from becoming established. Other means of control, including mechanical or chemical control, becomes necessary when woody plants and other undesirable species make up 30% or more of the canopy in a pasture. Mechanically, chemically or spot treatment of thorny species maybe necessary at levels of 10% canopy. Return to Grassland Evaluation Contest Study Guide